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class="vector-dropdown-checkbox " aria-label="個人用ツール" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">個人用ツール</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="利用者メニュー" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ja.wikipedia.org&uselang=ja"><span>寄付</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%82%A2%E3%82%AB%E3%82%A6%E3%83%B3%E3%83%88%E4%BD%9C%E6%88%90&returnto=%E3%82%A8%E3%83%94%E3%83%9E%E3%83%BC&returntoquery=oldid%3D100046920" title="アカウントを作成してログインすることをお勧めしますが、必須ではありません"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>アカウント作成</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3&returnto=%E3%82%A8%E3%83%94%E3%83%9E%E3%83%BC&returntoquery=oldid%3D100046920" title="ログインすることを推奨します。ただし、必須ではありません。 [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>ログイン</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> ログアウトした編集者のページ <a href="/wiki/Wikipedia:%E3%82%A6%E3%82%A3%E3%82%AD%E3%83%9A%E3%83%87%E3%82%A3%E3%82%A2%E3%81%B8%E3%82%88%E3%81%86%E3%81%93%E3%81%9D" aria-label="編集の詳細"><span>もっと詳しく</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E8%87%AA%E5%88%86%E3%81%AE%E6%8A%95%E7%A8%BF%E8%A8%98%E9%8C%B2" title="このIPアドレスからなされた編集の一覧 [y]" accesskey="y"><span>投稿記録</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%88%E3%83%BC%E3%82%AF%E3%83%9A%E3%83%BC%E3%82%B8" title="このIPアドレスからなされた編集についての議論 [n]" accesskey="n"><span>トーク</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="サイト"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目次" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目次</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">非表示</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">ページ先頭</div> </a> </li> <li id="toc-エピ化" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#エピ化"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>エピ化</span> </div> </a> <ul id="toc-エピ化-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-脚注" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#脚注"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>脚注</span> </div> </a> <ul id="toc-脚注-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="目次" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="目次の表示・非表示を切り替え" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">目次の表示・非表示を切り替え</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">エピマー</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="特定の記事の別の言語版に移動します。利用可能な言語30件" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-30" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">30の言語版</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%B5%D8%A7%D9%88%D8%BA_%D8%B5%D9%86%D9%88%D9%8A" title="アラビア語: مصاوغ صنوي" lang="ar" hreflang="ar" data-title="مصاوغ صنوي" data-language-autonym="العربية" data-language-local-name="アラビア語" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%95%D0%BF%D0%B8%D0%BC%D0%B5%D1%80" title="ブルガリア語: Епимер" lang="bg" hreflang="bg" data-title="Епимер" data-language-autonym="Български" data-language-local-name="ブルガリア語" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Epimer" title="ボスニア語: Epimer" lang="bs" hreflang="bs" data-title="Epimer" data-language-autonym="Bosanski" data-language-local-name="ボスニア語" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Ep%C3%ADmer" title="カタロニア語: Epímer" lang="ca" hreflang="ca" data-title="Epímer" data-language-autonym="Català" data-language-local-name="カタロニア語" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Epimer" title="チェコ語: Epimer" lang="cs" hreflang="cs" data-title="Epimer" data-language-autonym="Čeština" data-language-local-name="チェコ語" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Epimer" title="ドイツ語: Epimer" lang="de" hreflang="de" data-title="Epimer" data-language-autonym="Deutsch" data-language-local-name="ドイツ語" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%95%CF%80%CE%B9%CE%BC%CE%B5%CF%81%CE%AD%CF%82" title="ギリシャ語: Επιμερές" lang="el" hreflang="el" data-title="Επιμερές" data-language-autonym="Ελληνικά" data-language-local-name="ギリシャ語" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Epimer" title="英語: Epimer" lang="en" hreflang="en" data-title="Epimer" data-language-autonym="English" data-language-local-name="英語" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Ep%C3%ADmero" title="スペイン語: Epímero" lang="es" hreflang="es" data-title="Epímero" data-language-autonym="Español" data-language-local-name="スペイン語" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Epimeeri" title="フィンランド語: Epimeeri" lang="fi" hreflang="fi" data-title="Epimeeri" data-language-autonym="Suomi" data-language-local-name="フィンランド語" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/%C3%89pim%C3%A8re" title="フランス語: Épimère" lang="fr" hreflang="fr" data-title="Épimère" data-language-autonym="Français" data-language-local-name="フランス語" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Ep%C3%ADmero" title="ガリシア語: Epímero" lang="gl" hreflang="gl" data-title="Epímero" data-language-autonym="Galego" data-language-local-name="ガリシア語" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%90%D7%A4%D7%99%D7%9E%D7%A8" title="ヘブライ語: אפימר" lang="he" hreflang="he" data-title="אפימר" data-language-autonym="עברית" data-language-local-name="ヘブライ語" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Epimer" title="ハンガリー語: Epimer" lang="hu" hreflang="hu" data-title="Epimer" data-language-autonym="Magyar" data-language-local-name="ハンガリー語" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Epimer" title="インドネシア語: Epimer" lang="id" hreflang="id" data-title="Epimer" data-language-autonym="Bahasa Indonesia" data-language-local-name="インドネシア語" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Epimero" title="イタリア語: Epimero" lang="it" hreflang="it" data-title="Epimero" data-language-autonym="Italiano" data-language-local-name="イタリア語" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%97%90%ED%94%BC%EB%A8%B8" title="韓国語: 에피머" lang="ko" hreflang="ko" data-title="에피머" data-language-autonym="한국어" data-language-local-name="韓国語" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Epimer" title="マレー語: Epimer" lang="ms" hreflang="ms" data-title="Epimer" data-language-autonym="Bahasa Melayu" data-language-local-name="マレー語" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Epimeer" title="オランダ語: Epimeer" lang="nl" hreflang="nl" data-title="Epimeer" data-language-autonym="Nederlands" data-language-local-name="オランダ語" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Epimery" title="ポーランド語: Epimery" lang="pl" hreflang="pl" data-title="Epimery" data-language-autonym="Polski" data-language-local-name="ポーランド語" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Ep%C3%ADmero" title="ポルトガル語: Epímero" lang="pt" hreflang="pt" data-title="Epímero" data-language-autonym="Português" data-language-local-name="ポルトガル語" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Epimer" title="ルーマニア語: Epimer" lang="ro" hreflang="ro" data-title="Epimer" data-language-autonym="Română" data-language-local-name="ルーマニア語" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%AD%D0%BF%D0%B8%D0%BC%D0%B5%D1%80" title="ロシア語: Эпимер" lang="ru" hreflang="ru" data-title="Эпимер" data-language-autonym="Русский" data-language-local-name="ロシア語" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Epimer" title="セルボ・クロアチア語: Epimer" lang="sh" hreflang="sh" data-title="Epimer" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="セルボ・クロアチア語" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Epim%C3%A9r" title="スロバキア語: Epimér" lang="sk" hreflang="sk" data-title="Epimér" data-language-autonym="Slovenčina" data-language-local-name="スロバキア語" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Epimer" title="セルビア語: Epimer" lang="sr" hreflang="sr" data-title="Epimer" data-language-autonym="Српски / srpski" data-language-local-name="セルビア語" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Epimer" title="スウェーデン語: Epimer" lang="sv" hreflang="sv" data-title="Epimer" data-language-autonym="Svenska" data-language-local-name="スウェーデン語" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Epimer" title="トルコ語: Epimer" lang="tr" hreflang="tr" data-title="Epimer" data-language-autonym="Türkçe" data-language-local-name="トルコ語" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%95%D0%BF%D1%96%D0%BC%D0%B5%D1%80%D0%B8" title="ウクライナ語: Епімери" lang="uk" hreflang="uk" data-title="Епімери" data-language-autonym="Українська" data-language-local-name="ウクライナ語" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%B7%AE%E5%90%91%E5%BC%82%E6%9E%84%E4%BD%93" title="中国語: 差向异构体" lang="zh" hreflang="zh" data-title="差向异构体" data-language-autonym="中文" data-language-local-name="中国語" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q926272#sitelinks-wikipedia" title="言語間リンクを編集" class="wbc-editpage">リンクを編集</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="名前空間"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%E3%82%A8%E3%83%94%E3%83%9E%E3%83%BC" title="本文を閲覧 [c]" accesskey="c"><span>ページ</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%E3%83%8E%E3%83%BC%E3%83%88:%E3%82%A8%E3%83%94%E3%83%9E%E3%83%BC&action=edit&redlink=1" rel="discussion" class="new" title="「本文ページについての議論」 (存在しないページ) [t]" accesskey="t"><span>ノート</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="別の言語に切り替える" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button 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class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">出典: フリー百科事典『ウィキペディア（Wikipedia）』</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><div class="cdx-message cdx-message--block cdx-message--warning mw-revision"><span class="cdx-message__icon"></span><div class="cdx-message__content"><div id="mw-revision-info-current"><p><b>2024年4月17日 (水) 10:25; <a href="/wiki/%E7%89%B9%E5%88%A5:%E6%8A%95%E7%A8%BF%E8%A8%98%E9%8C%B2/133.1.219.209" class="mw-userlink mw-anonuserlink" title="特別:投稿記録/133.1.219.209" data-mw-revid="100046920"><bdi>133.1.219.209</bdi></a> <span class="mw-usertoollinks">(<a href="/w/index.php?title=%E5%88%A9%E7%94%A8%E8%80%85%E2%80%90%E4%BC%9A%E8%A9%B1:133.1.219.209&action=edit&redlink=1" class="new mw-usertoollinks-talk" title="「利用者‐会話:133.1.219.209」 (存在しないページ)">会話</a>)</span> による版 <span class="comment">(<span class="autocomment"><a href="#エピ化">→<bdi dir="ltr">エピ化</bdi></a></span>)</span>（日時は<a href="/wiki/%E7%89%B9%E5%88%A5:%E5%80%8B%E4%BA%BA%E8%A8%AD%E5%AE%9A" title="特別:個人設定">個人設定</a>で未設定なら<a href="/wiki/%E5%8D%94%E5%AE%9A%E4%B8%96%E7%95%8C%E6%99%82" title="協定世界時">UTC</a>）</b></p><div id="revision-info-current-plain" style="display: none;"><a href="/wiki/%E7%89%B9%E5%88%A5:%E6%8A%95%E7%A8%BF%E8%A8%98%E9%8C%B2/133.1.219.209" class="mw-userlink mw-anonuserlink" title="特別:投稿記録/133.1.219.209" data-mw-revid="100046920"><bdi>133.1.219.209</bdi></a> <span class="mw-usertoollinks">(<a href="/w/index.php?title=%E5%88%A9%E7%94%A8%E8%80%85%E2%80%90%E4%BC%9A%E8%A9%B1:133.1.219.209&action=edit&redlink=1" class="new mw-usertoollinks-talk" title="「利用者‐会話:133.1.219.209」 (存在しないページ)">会話</a>)</span>による2024年4月17日 (水) 10:25時点の版 <span class="comment">(<span class="autocomment"><a href="#エピ化">→<bdi dir="ltr">エピ化</bdi></a></span>)</span></div></div><div id="mw-revision-nav">(<a href="/w/index.php?title=%E3%82%A8%E3%83%94%E3%83%9E%E3%83%BC&diff=prev&oldid=100046920" title="エピマー">差分</a>) <a href="/w/index.php?title=%E3%82%A8%E3%83%94%E3%83%9E%E3%83%BC&direction=prev&oldid=100046920" title="エピマー">← 古い版</a> | 最新版 (差分) | 新しい版 → (差分)</div></div></div></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ja" dir="ltr"><p><b>エピマー</b> (epimer) とは立体化学を表す用語で、2ヶ所以上の<a href="/wiki/%E3%82%AD%E3%83%A9%E3%83%AB%E4%B8%AD%E5%BF%83" title="キラル中心">キラル中心</a>を持ち<a href="/wiki/%E3%82%B8%E3%82%A2%E3%82%B9%E3%83%86%E3%83%AC%E3%82%AA%E3%83%9E%E3%83%BC" title="ジアステレオマー">ジアステレオマー</a>の関係にある化合物のうち、特に1ヶ所のキラル中心上の立体配置だけが異なる化合物を指す<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>。 </p> <figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Glucoseab.png" class="mw-file-description" title="グルコース"><img alt="グルコース" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/09/Glucoseab.png/350px-Glucoseab.png" decoding="async" width="350" height="105" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/09/Glucoseab.png/525px-Glucoseab.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/09/Glucoseab.png/700px-Glucoseab.png 2x" data-file-width="1090" data-file-height="328" /></a><figcaption>グルコース</figcaption></figure> <p>例えば、α-<a href="/wiki/%E3%82%B0%E3%83%AB%E3%82%B3%E3%83%BC%E3%82%B9" title="グルコース">グルコース</a>とβ-グルコースはエピマーの関係にある。α-グルコースでは1位の<a href="/wiki/%E3%83%92%E3%83%89%E3%83%AD%E3%82%AD%E3%82%B7%E5%9F%BA" title="ヒドロキシ基">ヒドロキシ基</a> (-OH) が<a href="/wiki/%E3%82%A2%E3%82%AD%E3%82%B7%E3%83%A3%E3%83%AB" class="mw-disambig" title="アキシャル">アキシャル</a>方向に向いているが、β-グルコースでは<a href="/wiki/%E3%82%A8%E3%82%AB%E3%83%88%E3%83%AA%E3%82%A2%E3%83%AB" class="mw-redirect" title="エカトリアル">エカトリアル</a>方向に向いている。これらは1位の炭素上の配置だけが異なるエピマーである。糖の場合、1位の立体が異なるエピマーを特に <a href="/wiki/%E3%82%A2%E3%83%8E%E3%83%9E%E3%83%BC" title="アノマー">アノマー</a> (anomer) とも呼ぶ。 </p> <figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Glucopyranose_mannopyranose.PNG" class="mw-file-description" title="β-グルコースとβ-マンノース"><img alt="β-グルコースとβ-マンノース" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Glucopyranose_mannopyranose.PNG/350px-Glucopyranose_mannopyranose.PNG" decoding="async" width="350" height="161" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Glucopyranose_mannopyranose.PNG/525px-Glucopyranose_mannopyranose.PNG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Glucopyranose_mannopyranose.PNG/700px-Glucopyranose_mannopyranose.PNG 2x" data-file-width="837" data-file-height="384" /></a><figcaption>β-グルコースとβ-マンノース</figcaption></figure> <p>β-D-グルコピラノースとβ-D-マンノピラノースは2位の炭素上の立体配置だけが異なるエピマーである。β-D-グルコピラノースの2位のヒドロキシ基はエカトリアル方向へ、β-D-マンノピラノースではアキシャル方向へ向いている。これらはアノマーとは呼ばれない。 </p><p>化合物の名称において、ある化合物に対するエピマーに <i>epi-</i> という接頭辞をつけて呼ぶことがある。例えば<a href="/wiki/%E3%82%AD%E3%83%8B%E3%83%BC%E3%83%8D" title="キニーネ">キニーネ</a>に対して、ヒドロキシ基の立体が異なるエピマーをエピキニーネ (<i>epi</i>-quinine) と呼ぶ。 </p> <div class="mw-heading mw-heading2"><h2 id="エピ化"><span id=".E3.82.A8.E3.83.94.E5.8C.96"></span>エピ化</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E3%82%A8%E3%83%94%E3%83%9E%E3%83%BC&action=edit&section=1" title="節を編集: エピ化"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>ある化合物からそのエピマーに変換する手法を <b>エピ化</b>、あるいは <b>エピマー化</b> (epimerization) と呼ぶ。<a href="/wiki/%E5%85%89%E5%BB%B6%E5%8F%8D%E5%BF%9C" title="光延反応">光延反応</a>を利用してヒドロキシ基の立体を反転させる光延反転などの手法が知られる。 </p> <div class="mw-heading mw-heading2"><h2 id="脚注"><span id=".E8.84.9A.E6.B3.A8"></span>脚注</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E3%82%A8%E3%83%94%E3%83%9E%E3%83%BC&action=edit&section=2" title="節を編集: 脚注"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><b><a href="#cite_ref-1">^</a></b> <span class="reference-text">March, J.; Smith, M. B. 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