JP4453256B2 - 1,2-Dioxetane derivative and reagent using the same - Google Patents

1,2-Dioxetane derivative and reagent using the same Download PDF

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JP4453256B2
JP4453256B2 JP2003016454A JP2003016454A JP4453256B2 JP 4453256 B2 JP4453256 B2 JP 4453256B2 JP 2003016454 A JP2003016454 A JP 2003016454A JP 2003016454 A JP2003016454 A JP 2003016454A JP 4453256 B2 JP4453256 B2 JP 4453256B2
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mmol
dimethyl
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ethyl acetate
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JP2004002300A (en
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正勝 松本
信子 渡辺
雅士 山田
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Tosoh Corp
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Tosoh Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、1,2−ジオキセタン誘導体に関する。本発明の1,2−ジオキセタン誘導体は化学発光を誘導することができる化合物であり、例えば免疫測定等の基質として使用することができる。
【0002】
【従来の技術】
1,2−ジオキセタン誘導体は、従来より種々合成されており、特に3位にスピロアダマンチル基が結合した化合物は化学発光基質として有用であることが知られている(例えば、特許文献1、特許文献2参照)。また、本発明者らが既に製造したものとして、各種の化合物が知られている(例えば、特許文献3〜6参照)。これらの1,2−ジオキセタン誘導体は、リン酸エステル基などの酵素認識部位を有しており、酵素によってトリガリングされることにより発光する。これら一連の化合物は、免疫反応後に固相に吸着している抗原または抗体に標識された酵素の活性を化学発光反応で検出する方法に用いられる。この方法においては測定系に1,2−ジオキセタン溶液を添加するので、全く酵素が存在しない場合においても熱、微量不純物など非酵素分解反応による発光を検出し、バックグラウンドの上昇を招いている。このバックグラウンドの上昇は検出感度に大きく影響するので問題となっていた。
【0003】
そのため、各種の化合物が合成されている(例えば、特許文献7〜9参照)が、ジオキセタン自体の安定性が依然課題として残っていた。
【0004】
【特許文献1】
特公平5−21918号公報
【特許文献2】
特公平5−45590号公報
【特許文献3】
特開平8−245615号公報
【特許文献4】
特開平8−169885号公報
【特許文献5】
特開平8−165287号公報
【特許文献6】
特開2002−338576号公報
【特許文献7】
特許2572171号公報
【特許文献8】
特表平08−502968号公報
【特許文献9】
特表2002−508654号公報
【0005】
【発明が解決しようとする課題】
1,2−ジオキセタン誘導体に関しては前記のように様々な検討がなされ、種々の化合物が創出されている。しかしながら、臨床検査等の分野で応用するためには化合物自体が安定で取扱いが容易であり、高感度化のために、測定時における低バックグラウンドの性能が要求され、従来の化合物よりもさらに優れた化合物の創出が望まれていた。
【0006】
【課題を解決するための手段】
本願発明者らは、前記のような状況の下、従来化合物よりもさらに優れた化合物を創出するために鋭意検討した結果、安定な骨格を有しており、さらに免疫測定等の測定時にバックグラウンド低減が可能となる、有機化合物及び生物学的分子への標識可能な1,2−ジオキセタン誘導体を合成し、本発明を完成したものである。
【0007】
すなわち本発明は、
一般式[I]
【0008】
【化5】

Figure 0004453256
で表される1,2−ジオキセタン誘導体(式中、Arはアルキル基、アリール基、ハロゲン原子、アルコキシル基、カルボキシル基、ホルミル基、アルキルエステル、アリールエステル、アルキルケトン、アリールケトン又は複素環が結合していてもよいアリール基であり、Xは有機化合物又は生物学的分子への標識可能な置換基又はエステルであり、Yは水素原子、アシル基、又は−Si(R456)(ただし、R4、R5及びR6は互いに独立にアルキル基又はアリール基である。)で表される基であり、Zはアルキル基、アリール基、酸素原子、硫黄原子、カルボニル基、−(CO)−O−、−O−(CO)−、−NH−、−NH−CO−、−CO−NH−、−OSi(R78)−(ただし、R7及びR8は互いに独立にアルキル基又はアリール基である。)、又は−(R910)SiO−(ただし、R9及びR10は互いに独立にアルキル基又はアリール基である。)で表される基であり、R1、R2はアルキル基、又はアリール基であり、R3はスペーサーである。)。
【0009】
また本発明は、一般式[III]
【0010】
【化6】
Figure 0004453256
で表される1,2−ジオキセタン誘導体(式中、Arはアルキル基、アリール基、ハロゲン原子、アルコキシル基、カルボキシル基、ホルミル基、アルキルエステル、アリールエステル、アルキルケトン、アリールケトン又は複素環が結合していてもよいアリール基であり、Xは有機化合物又は生物学的分子への標識可能な置換基又はエステルである。Vはカルボニル基又は−Si(R1516)−(ただし、R15及びR16は互いに独立にアルキル基又はアリール基である。)で表される基であり、R11、R12はそれぞれ独立に水素原子、アルキル基又はアリール基であるか、または、R11、R12は一体となり、ジオキセタン環にスピロ結合する環式又は多環式有機環基を形成してもよい。R13はアルキル基、アリール基であるか、又はR13とR11もしくはR13とR12とが一体となってジオキセタン環とヘテロ原子を含む縮合環を形成してもよい。また、R14はスペーサーである。)。
【0011】
さらに本発明は、上述の1,2−ジオキセタン誘導体を含有することを特徴とする化学発光試薬である。また本発明は、上述の1,2−ジオキセタン誘導体が、そのX又はWの一部を介して特異的結合性を有する物質と結合しているをことを特徴とする免疫測定試薬である。以下、本発明を詳細に説明する。
【0012】
本明細書中で「アルキル基」とは、置換基を有していてもよい炭素数1〜20個の直鎖状又は分枝鎖状のアルキル基をいい、例えば、メチル、エチル、プロピル、ブチル、ペンチル、ヘキシル、ヘプチル、オクチル、ノニル、デシル、ウンデシル、ドデシル、テトラデシル、ペンタデシル、ヘキサデシル、ヘプタデシル、オクタデシル、ノナデシル、イコサニルなどの直鎖の基又は前記のアルキル基が適宜分枝状に結合した基をいう。前記のアルキル基が有していてもよい置換基とは、例えば、ヒドロキシル基、アルコキシル基、アリール基等である。
【0013】
本明細書で「アルコキシル基」とは、例えばメトキシ、エトキシ、プロポキシ、ブトキシ、ペンチルオキシ、ヘキシルオキシ、メトキシエトキシ、メトキシプロポキシ、エトキシエトキシ、エトキシプロポキシ、メトキシエトキシエトキシ基等の炭素数1〜20個のアルコキシル基が直鎖状又は分枝状に1〜5個結合したもの等を挙げることができる。本明細書で「アリール基」とは、例えば、フェニル、ナフチル基等の炭素数6〜20個の芳香族炭化水素基、又は、フリル、チエニル、ピリジル基等の環内に1〜5個の窒素原子、酸素原子又は硫黄原子を有するヘテロアリール基等を挙げることができる。
【0014】
本明細書で「アシル基」とは、例えばホルミル基、アセチル基、スクシニル基、ベンゾイル基、1−ナフトイル基、2−ナフトイル基等があげられる。また、本明細書中で「環式有機環基」とは、シクロヘキシル、シクロへプチルなどのC510の環式アルキレンであり、「多環式有機環基」とは、C1〜C10アルキル、C1〜C10アルコキシ、ハロゲン及びハロ−C1〜C10アルキルの中から独立して選ばれた1〜10個の基で任意に置換された炭素原子数6〜30の多環式アルキレンである。例えばアダマンチル基、ビシクロ[2.2.1]ヘプチル等であり、また、その多環式有機環基の任意の炭素にハロゲン原子、アルキル基、アリール基、シアノ基、アミド基、アルコキシ基あるいはカルボキシル基が結合していても構わない。
【0015】
さらに、本明細書中で「複素環」とは、例えば、フラン、チオフェン、ピロール、オキサゾール、イソオキサゾール、チアゾール、イソチアゾール、イミダゾール、ピラゾール、フラザン、ピラン、ピリジン、ピリダジン、ピリミジン、ピラジン等を挙げることができる。「ハロゲン原子」とはフッ素、塩素、臭素等である。
【0016】
Xは有機化合物又は生物学的分子への標識可能な置換基又はエステルであるが、このうち有機化合物又は生物学的分子への標識可能な置換基としては、カルボン酸、スクシンイミドオキシ置換基、酸クロライド、アミノ基、マレイミド基、スクシニイミドキシカルボニル基などが例示され、エステルとしてはC16のアルキルエステルなどが例示される。R3及びR14はスペーサーであるが、例えば−(CH2n−,又は−(CH2nNH−など(nは1から20までの整数)が例示される。
【0017】
また一般式[III]において、R13とR11又はR13とR12とが一体となってジオキセタン環とヘテロ原子を含む縮合環を形成する場合としては、例えばジオキセタン環とフラン環との縮合環、またはジオキセタン環とピラン環との縮合環を例示することができる。
【0018】
このうち、一般式[I]の中では、式[II]
【0019】
【化7】
Figure 0004453256
(式中、Yは前記式[I]のYと同じであり、nは1から20までの整数である。Wは水素原子、アルキル基、又はスクシンイミド置換基であり、Uは水素原子、アルキル基、アリール基、ハロゲン原子、アルコキシル基、カルボキシル基、ホルミル基、アルキルエステル、アリールエステル、アルキルケトン、アリールケトン又は複素環である。)で示される1,2−ジオキセタン誘導体が好ましいものである。更に好ましくは、Uが水素原子、nが1〜15、Wが水素原子、エチル基などの炭素数1〜6のアルキル基、又はスクシンイミド、Yが炭素数1〜6のアシル基又は−Si(R456)[特にR4、R5、R6が炭素数1〜6のアルキル基の場合]である。
【0020】
一般式[III]の中では、式[IV]
【0021】
【化8】
Figure 0004453256
(式中、nは1から20までの整数である。Wは水素原子、アルキル基、又はスクシンイミド置換基であり、Uは水素原子、アルキル基、アリール基、ハロゲン原子、アルコキシル基、カルボキシル基、ホルミル基、アルキルエステル、アリールエステル、アルキルケトン、アリールケトン又は複素環である。)で示される1,2−ジオキセタン誘導体が好ましいものである。更に好ましくは、Uが複素環、特にCF3などの置換基を有していてもよいイソオキサゾール環であり、nが1〜6であり、Wがスクシンイミド基、水素原子、又はアルキル基である。
【0022】
前記一般式[I]で表される化合物がジヒドロフラン誘導体の場合の製造方法は、例えば、下記の方法を挙げることができる。
【0023】
【化9】
Figure 0004453256
(式中、R3、X及びYは前記一般式[I]のR3、X及びYと同じである。R17〜R26はそれぞれ独立に水素原子、アルキル基又はアリール基である。R27はハロゲン原子、置換スルホニルオキシ基又はヒドロキシル基である。R28はアルキル基である。)
(第1工程)本工程は、前記一般式(1)で表される化合物を前記一般式(2)で表される化合物と反応させることによって前記一般式(3)で表される化合物を製造するものである。反応は当業者に熟知された、いわゆる、ウィリアムソン合成により達成することができる。ここで、前記一般式(1)で表される化合物の置換基R27がハロゲン原子又は置換スルホニルオキシ基である場合は直接反応に付し、R27がヒドロキシル基である場合には、一旦反応系中でハロゲン化トシル等によりスルホニルオキシ基に変換してから反応に付すことで本工程を達成することができる。
【0024】
(第2工程)本工程は、前記一般式(3)で表される化合物を脱保護することによって、前記一般式(4)で表される化合物を製造するものである。本工程における脱保護反応は、酸を用いることにより行うことが出来る。前記酸としては塩酸等を用いることができ、この時、溶媒はTHF等のエーテルを用いることができる。
【0025】
(第3工程)本工程は、前記一般式(4)で表される化合物のアルコール性水酸基の一つを保護することによって、前記一般式(5)で表される化合物を製造するものである。本工程における保護反応は、3,4−ジヒドロ−2H−ピランを用いることにより行うことができる。この時、溶媒はジクロロメタン等のハロゲン化炭化水素を用いることができる。さらに触媒としてPPTS(p−トルエンスルホン酸ピリジニウム)を用いることにより、効率良く目的物を得ることができる。
【0026】
(第4工程)本工程は、前記一般式(5)で表される化合物を酸化することによって、前記一般式(6)で表される化合物を製造するものである。本工程における酸化は、クロム系酸化剤又は活性化剤を用いることにより行うことができる。前記クロム系酸化剤としてはピリジニウムクロロクロメート(PCC)、ピリジニウムジクロロクロメート(PDC)等を用いることができ、この時、溶媒はジクロロメタン等のハロゲン化炭化水素を用いることができる。また、前記活性化剤を用いる場合は、Py・SO3/トリエチルアミン/DMSO、Ac2O/DMSO系等のような溶媒との組み合わせで反応を行うことができる。
【0027】
(第5工程)本工程は、前記一般式(6)で表される化合物を閉環させ、前記一般式(7)で表される化合物を製造するものである。反応はリチウムジイソピロピルアミド等の2級アミンのリチウム塩又はt−ブトキシカリウム等の塩基を用いて行うものである。溶媒としては、THF、DMSO等の有機溶媒を用いることができ、0℃〜室温で、1〜5時間反応を行うことが好ましい。
【0028】
(第6工程)本工程は、前記一般式(7)で表される化合物を脱保護することによって、前記一般式(8)で表される化合物を製造するものである。本工程における脱保護反応は、酸を用いることにより行うことが出来る。前記酸としては塩酸等を用いることができ、この時、溶媒はメタノール等のアルコールを用いることができる。
【0029】
(第7工程)本工程は、前記一般式(8)で表される化合物をR3X置換基を有する化合物と反応させることによって前記一般式(9)で表される化合物を製造するものである。反応は当業者に熟知された、いわゆる、ウィリアムソン合成等により達成することができる。
【0030】
(第8工程)本工程は、前記一般式(9)で表される化合物を脱水することによって、前記一般式(10)で表される化合物を製造するものである。反応はピリジン等の塩基の存在下、塩化チオニルを作用させるか又はリン酸、p−トルエンスルホン酸等の酸を触媒として用いることができる。溶媒としては、ジクロロメタン等のハロゲン化炭化水素又はトルエン等の芳香族炭化水素を用いることができ、作用させる試薬によって、適宜選択することができる。
【0031】
(第9工程)本工程は、前記一般式(10)で表される化合物の脱保護反応を行い前記一般式(11)で表される化合物を製造するものである。メトキシ基又はベンジルオキシ基で表される化合物の場合、本反応は当業者に熟知された方法、即ちアルキルチオールのアニオンを反応させ行うかあるいは水素添加反応に付すことにより行うことができるが、どちらの反応を選択するかは脱保護すべき基により適宜選択すればよい。
【0032】
(第10工程)本工程は、前記一般式(11)で表される化合物のフェノール性水酸基に、フッ素イオン存在下もしくはアルカリ性条件下にて脱保護される化合物を導入することによって、前記一般式(12)で表される化合物を製造するものである。アルキルエステル、アリールエステル及び−OSi(R456)(ただし、R4、R5及びR6は互いに独立にアルキル基及びアリール基である。)で表される基の形成のため対応する、酸無水物あるいはハロゲン化シラン化合物を反応させ、前記一般式(12)で表される化合物を製造するものである。
【0033】
(第11工程)本工程は前記一般式(12)で表される化合物を一重項酸素と反させ、前記一般式(13)で表される1,2−ジオキセタン誘導体を製造するものである。一重項酸素との反応は、メチレンブルー、ローズベンガル、テトラフェニルポルフィン(TPP)等の光増感剤の共存下、酸素雰囲気の下で可視光照射を行うことにより達成される。このとき、溶媒はジクロロメタン、ジクロロエタン、四塩化炭素等のハロゲン化炭化水素又はメタノール、エタノール等のアルコール等を用いることができる。なお、反応は−80℃〜室温で行うことが好ましい。
【0034】
本発明による前記一般式[III]で表される化合物は、例えば特開2002−338576号公報に記載の方法で得られた化合物に、酸無水物を反応させることにより製造することができる。
【0035】
本発明の一般式[I]又は一般式[III]で表される1,2−ジオキセタン誘導体は、フッ素イオン存在下もしくはアルカリ性条件下で化学発光を伴ってカルボニル化合物に分解する。従って、これらは化学発光試薬として使用することができ、例えば免疫測定法、化学検定法、ヌクレオチドプローブ法等に用いることができる。
【0036】
特に本発明の一般式[I]又は[III]で表される1,2−ジオキセタン誘導体を、そのX又はWの一部を介して特異的結合性を有する物質と結合させることにより、免疫測定試薬として使用することができる。この免疫測定試薬を用いた免疫測定法としては、例えば本発明の免疫測定試薬と検出物質を含む試料を混合し、一定時間反応させて、試料中の検出物質とそれに特異的に結合性を有する物質とを結合させる工程、及び、結合したか又は結合しなかった特異的結合性を有する物質の量を求める工程より行うことができる。前記の結合したか又は結合しなかった特異的結合性を有する物質の量を求める工程は、本発明の免疫測定試薬を構成している1,2−ジオキセタン誘導体に相当する部分がフッ素イオン存在下もしくはアルカリ性条件下で化学発光を伴って分解するため、その発光強度を測定することにより行うことができる。この時の発光強度は、1,2−ジオキセタン誘導体に相当する部分の量に比例して増大する。
【0037】
上記免疫測定法における検出物質としては、例えば、hCG、TSH、LH等のホルモン、AFP、CEA等の癌関連物質、HIV、HTLV−I等のウイルス抗原並びにその抗体及び核酸(DNA、RNA)等を挙げることができる。また本発明の免疫測定試薬を構成する特異的結合性を有する物質とは、検出物質に対して特異的結合性を有するものであり、例えば抗体、レセプターなどがあげられる。
【0038】
【実施例】
以下、実施例により本発明を詳細に説明する。しかし本発明はこれら実施例にのみ限定されるものではない。
【0039】
(実施例1)
【0040】
【化10】
Figure 0004453256
窒素雰囲気下、0℃にて、炭酸カリウム(73.2g,529.6mmol,3eq.)を懸濁させたDMF(100mL)溶液に、DMF(25mL)に溶解した1,3−アセトンジカルボン酸ジメチルエステル(化合物〔1〕)(30.9g,177.4mmol)を12分かけて滴下し、ついでDMF(20mL)に溶解したヨウ化メチル(33mL,530.1mmol,3eq.)を40分かけて滴下した。その反応溶液を徐々に室温に戻して攪拌し、DMF(40mL+50mL)を加え、一昼夜攪拌した。この反応溶液を、水に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾燥、濃縮し、目的の1,3−ジメチル−2−オキソ−1,3−プロパンジカルボン酸ジメチルエステル(化合物〔2〕)を黄色油状物(39.1g)として得た。これは精製することなく次の反応に供した。
【0041】
(実施例2)
【0042】
【化11】
Figure 0004453256
窒素雰囲気下、0℃にて、60%水素化ナトリウム(17.9g,447.0mmol,2.6eq.)を懸濁させたTHF(100mL)溶液にTHF(50mL)に溶解させた1,3−ジメチル−2−オキソ−1,3−プロパンジカルボン酸ジメチルエステル(化合物〔2〕)の粗生成物(39.1g)を45分かけて滴下して30分攪拌した。ついでTHF(50mL)に溶解させたヨウ化メチル(33mL,530.1mmol,3eq.)を50分かけて滴下し徐々に室温に戻して、一昼夜攪拌した。この反応溶液を、水に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和チオ硫酸ナトリウム水溶液、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾燥、濃縮し、目的の1,1,3,3−テトラメチル−2−オキソ−1,3−プロパンジカルボン酸ジメチルエステル(化合物〔3〕)を黄色油状物(42.9g)として得た。これは精製することなく次の反応に供した。
【0043】
(実施例3)
【0044】
【化12】
Figure 0004453256
窒素雰囲気下、0℃にて、水素化リチウムアルミニウム(10.2g,268.2mmol,1.5eq.)を懸濁させたTHF(150mL)溶液に,THF(50mL)に溶解した1,1,3,3−テトラメチル−2−オキソ−1,3−プロパンジカルボン酸ジメチルエステル(化合物〔3〕)の粗生成物(42.9g)を滴下し、徐々に室温まで戻して一昼夜攪拌した。この反応溶液にTHF(10mL)に溶解した水(10mL)を加えクエンチした。その反応溶液を6N塩酸水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色固体(28.7g)として得た。その残留物をヘキサンでリンスし目的の2,2,4,4−テトラメチルペンタン−1,3,5−トリオール(化合物〔4〕)の黄色固体(19.2g,109.2mmol,61.6%)とそのろ液の濃縮物(8.98g)を得た。そのろ液の濃縮物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:3)で流した。その結果、さらに黄色固体(2.14g,12.13mmol,6.8%)を得た(化合物〔4〕の合計収率 68.4%)。
【0045】
無色針状晶(mp.61.1〜61.5℃)
1H−NMR(400MHz,CDCl3):
δH 1.00(s,6H),1.09(s,6H),2.95(br,2H),3.47(d,J=10,6Hz,2H),3.52(d,J=10.6Hz,2H),3.64(s,12),4.25(br,1H)ppm
13C−NMR(125MHz,CDCl3):
δC 20.3,24.7,40.3,75.4,85.7ppm
IR(KBr):
3354,2954,2878,1028cm-1
MASS(EI,70ev,m/z,%):
176(M+,trace),128(8),103(38),97(35),85(24),73(36),58(2),54(100)。
【0046】
(実施例4)
【0047】
【化13】
Figure 0004453256
室温にて、2,2,4,4−テトラメチルペンタン−1,3,5−トリオール(化合物〔4〕)(24.7g,139.9mmol)を攪拌させたジクロロメタン(200mL)溶液に、アセトンジメチルアセタール(18mL,146.4mmol,1.1eq.)を加え、ついでp−トルエンスルホン酸ピリジニウム(3.62g,13.99mmol,0.1eq.)を加えて一昼夜攪拌した。その反応溶液を飽和炭酸水素ナトリウム水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した.有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物(31.2g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:4)で流した。その結果、目的の2−メチル−2−(2,2,5,5−テトラメチル−[1,3]ジオキサン−4−イル)−プロパン−1−オール(化合物〔5〕)を無色油状物(27.3g,126.3mmol,90.3%)として得た。
1H−NMR(400MHz,CDCl3):
δH 0.89(s,3H),1.02(s,3H),1.02(s,3H),1.21(s,3H),1.42(s,3H),1.42(s,3H),3.01(d,J=5.2Hz,1H),3.11(d,J=11.5Hz,1H),3.33(dd,J=10.7and5.2Hz,1H),3.54(d,J=11.5Hz,1H),3.54(dd,J=10.7and5.2Hz,1H),3.59(s,1H)ppm
13C−NMR(100MHz,CDCl3):
δC 18.7,20.3,21.2,24.1,24.5,29.0,35.4,40.2,73.0,74.4,83.2,98.5ppm
IR(liquid film):
2994,2858,1601,1462,1264,1044cm-1
【0048】
(実施例5)
【0049】
【化14】
Figure 0004453256
窒素雰囲気下、0℃にて、60%水素化ナトリウム(968mg,24.00mmol,1.09eq.)を懸濁させたTHF(30mL)溶液に2−メチル−2−(2,2,5,5−テトラメチル−[1,3]ジオキサン−4−イル)−プロパン−1−オール(化合物〔5〕)(4.76g,21.98mmol)を溶解させたTHF(20mL)溶液を15分かけて滴下し、3−メトキシベンジルクロライド(3.3mL,22.73mmol,1.03eq.)を加え、その後DMF(5mL)を加えて徐々に室温に戻し、50℃に加熱し2時間攪拌した。その反応溶液に水を投じ飽和塩化アンモニウム水溶液、酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物(7.67g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:10)で流した。その結果、目的の4−[2−(3−メトキシベンジロキシ)−1,1−ジメチルエチル]−2,2,5,5−テトラメチル−[1,3]ジオキサン(化合物〔6〕)を無色油状物(6.62g,19.68mmol,89.6%)として得た。
【0050】
1H−NMR(400MHz,CDCl3):
δH 0.88(s,3H),0.95(s,3H),1.05(s,3H),1.14(s,3H),1.34(s,3H),1.37(s,3H),3.01(d,J=8.6Hz,1H),3.08(d,J=11.5Hz,1H),3.37(d,J=8.6Hz,1H),3.51(d,J=11.5Hz,1H),3.65(s,1H),3.81(s,3H),4.42(d,J=12.9Hz,1H),4.47(d,J=12.9Hz,1H),6.82(d with fine coupling,J=8.1Hz,1H),6.90−6.91(m,2H),7.25(t,J=8.1Hz,1H)ppm
13C−NMR(100MHz,CDCl3):
δC 19.1,21.0,21.9,23.4,24.3,35.4,40.5,55.1,72.9,74.7,78.5,98.4,112.7,119.5,129.1,140.5,159.5ppm。
【0051】
IR(liquid film):
3441,2990,2954,2873,1164,1010,938cm-lMASS(EI,70ev,m/z,%):
336(M+,8),321(6),278(9),222(55),194(5),137(36),121(100),97(12),58(55)。
【0052】
(実施例6)
【0053】
【化15】
Figure 0004453256
室温にて、4−[2−(3−メトキシベンジロキシ)−1,1−ジメチルエチル]−2,2,5,5−テトラメチル−[1,3]ジオキサン(化合物〔6〕)(15.6g,46.34mmol)を攪拌させたTHF(120mL)溶液に、3N塩酸水溶液(15mL)を加え、80℃で6時間40分還流した。その反応溶液を飽和炭酸水素ナトリウム水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物(14.2g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:7)で流した。その結果、目的の5−(3−メトキシベンジロキシ)−2,2,4,4−テトラメチルペンタン−1,3−ジオール(化合物〔7〕)を無色油状物(11.5g,38.68mmol,83.5%)として得た。
1H−NMR(400MHz,CDCl3):
δH 0.98(s,3H),1.02(s,3H),1.06(s,3H),1.11(s,3H),3.33(s,2H),3.33−3.59(m,4H),3.82(s,3H),4.26(br−s,1H),4.49(s,2H),6.84−6.89(m,3H),7.25−7.29(m,1H)ppm13C−NMR(125MHz,CDCl3):
δC 20.1,21.1,24.7,25.0,40.4,40.4,55.1,73.6,75.4,83.0,85.3,112.9,113.3,120.0,129.5,139.0,159.7ppm
IR(liquid film):
3415,2957,1600,1266,1155,1079,782cm-1MASS(EI,70ev,m/z,%):
296(M+,19),222(8),138(94),121(100),109(8),73(10)。
【0054】
(実施例7)
【0055】
【化16】
Figure 0004453256
室温にて、5−(3−メトキシベンジロキシ)−2,2,4,4−テトラメチルペンタン−1,3−ジオール(化合物〔7〕)(1.87g,6.326mmol)を攪拌させたジクロロメタン(20mL)溶液に、3,4−ジヒドロ−2H−ピラン(0.7mL,7.672mmol,1.21eq.)を加え、p−トルエンスルホン酸ピリジニウム(81.0mg,0.3223mmol,0.05eq.)を加えて一昼夜攪拌した。その反応溶液を飽和炭酸水素ナトリウム水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾燥、濃縮し、残留物を黄色油状物(2.53g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:5)で流した。その結果、目的の1−(3−メトキシベンジロキシ)−2,2,4,4−テトラメチル−5−(テトラヒドロピラン−2−イルオキシ)ペンタン−3−オール(化合物〔8〕)を無色油状物(1.74g,4.564mmol,72.2%)として得た。
1H−NMR(400MHz,CDCl3):
δH 1.02(s,1.5H),1.04(s,1.5H),1.04(s,1.5H),1.05(s,1.5H),1.06(s,1.5H),1.09(s,1.5H),1.10(s,1.5H),1.11(s,1.5H),1.53−1.82(m,6H),3.14−3.70(m,9H)3.81(s,3H),3.81−3.86(m,1H),4.48−4.58(m,3H),6.81(d with fine coupling,J=7.8Hz,1H),6.90(m,2H),7.25(t,J=7.8Hz,1H)ppm
13C−NMR(125MHz,CDCl3):
δC 19.3,19.6,21.6,21.9,21.9,22.0,24.4,24.7,24.9,25.0,25.3,25.4,30.5,30.6,40.4,40.5,40.8,55.1,61.9,62.4,73.1,77.7,78.2,80.4,80.5,80.6,81.1,99.0,99.3,112.7,112.9,113.0,119.6,129.3,129.3,140.1,140.2,169.6ppm
MASS(EI,70ev,m/z,%):
380(M+,3),295(29),222(13),138(60),121(100),85(97)。
【0056】
(実施例8)
【0057】
【化17】
Figure 0004453256
室温にて、ピリジニウムクロロクロメート(1.31g,6.063mmol,1.58eq.)とセライト(3.50g)を懸濁させたジクロロメタン(15mL)溶液にピリジン(0.46mL,6.335mmol,1.65eq.)を加え、1−(3−メトキシベンジロキシ)−2,2,4,4−テトラメチル−5−(テトラヒドロピラン−2−イルオキシ)ペンタン−3−オール(化合物〔8〕)(1.46g,3.837mmol)を溶解したジクロロメタン(5mL)を5分かけて滴下し、4日間攪拌した。その反応溶液に2−プロパノール(4mL)を加え30分攪拌し、ジエチルエーテル(100mL)を加え30分攪拌し、セライトろ過し、そのろ液を濃縮し、残留物を緑色油状物(1.46g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:7)で流した。その結果、目的の1−(3−メトキシベンジロキシ)−2,2,4,4−テトラメチル−5−(テトラヒドロピラン−2−イルオキシ)ペンタン−3−オン(化合物〔9〕)を無色油状物(1.17g,3.099mmol,80.8%)として得た。
1H−NMR(400MHz,CDCl3):
δH 1.23(s,3H),1.28(s,3H),1.28(s,3H),1.32(s,3H),1.46−1.70(m,6H),3.46−3.83(m,6H),3.80(s,3H),4.47(s,2H),4.55(t,J=3.2Hz,1H),6.80(d with fine coupling,J=8.1Hz,1H),6.86(s,1H),6.87(d,J=8.1Hz,1H),7.23(t,J=8.1Hz,1H)ppm
13C−NMR(100MHz,CDCl3):
δC 19.3,23.3,23.5,23.6,23.7,25.5,30.5,50.1,50.3,55.1,61.8,63.0,73.0,76.0,78.3,98.9,112.5,112.9,119.5,129.1,140.1,159.5,215.9ppm
IR(liquid film):
3441,2990,2954,2873,1164,1010,938cm-1MASS(E1,70ev,m/z,%):
378(M+,3),322(4),293(21),237(2),157(16),138(11),121(91),85(100)。
【0058】
(実施例9)
【0059】
【化18】
Figure 0004453256
窒素雰囲気下、室温にて、ジイソプロピルアミン(6.5mL,46.38mmol,2.5eq.)を溶解させたTHF(40mL)溶液に、n−ブチルリチウムヘキサン溶液(1.61M溶液,28mL,46.08mmol,2.4eq.)を加え、35分攪拌した。その反応溶液を−78℃に冷却し、1−(3−メトキシベンジロキシ)−2,2,4,4−テトラメチル−5−(テトラヒドロピラン−2−イルオキシ)ペンタン−3−オン(化合物〔9〕)(7.00g,18.50mmol)を溶解させたTHF(30mL)溶液を30分かけて滴下し、2時間40分攪拌した。その反応溶液に水を加え、クエンチした後、その反応溶液を飽和塩化アンモニウム水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物(7.56g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:4)で流した。その結果、目的の3−ヒドロキシ−2−(3−メトキシベンジロキシ)−4,4−ジメチル−3−[1,1−ジメチル−2−(テトラヒドロピラン−2−イルオキシ)エチル]テトラヒドロフラン(化合物〔10〕)を無色油状物10a(1.98g,5.230mmol,28.3%)、10a+10b(2.06g,5.436mmol,29.4%)、10b(2.59g,6.850mmol,37.0%)、合計(6.63g,17.62mmol,94.7%)として得た。
【0060】
【化19】
Figure 0004453256
10a
1H−NMR(400MHz,CDCl3):
δH 1.03(s,3H),1.29(s,3H),1.35(s,3H),1.57(s,3H),1.54−1.79(m,6H),2.70(d,J=10.0Hz,1H),3.45−3.48(m,1H),3.76−3.80(m,2H),3.80(s,3H),3.87(d,J=8.1Hz,1H),4.13(m,1H),4.88(br,1H),5.14(s,1H),6.80(d with fine coupling,J=8.1Hz,1H),7.11(s,1H),7.12(d,J=8.1Hz,1H),7.20(t,J=8.1Hz,1H)ppm。
13C−NMR(100MHz,CDCl3):
δC 19.0,25.3,25.4,30.3,41.5,47.9,55.2,62.0,78.4,80.0,88.0,90.7,98.7,112.7,113.6,120.3,128.5,142.0,159.1ppm
IR(liquid film):
3455,2940,2874,1722,1603,1487,1390,1281,1037,784cm-1
MASS(EI,70ev,m/z,%):
378(M+,2),276(21),157(33),136(100),126(32),107(16),85(32),55(41)。
【0061】
10b
1H−NMR(400MHz,CDCl3):
δH 1.14(s,6H),1.39(s,6H),1.55−1.77(m,6H),3.45−3.56(m,2H),3.60(d,J=8.0Hz,1H),3.81(s,3H),3.78−3.80(m,2H),3.90(d,J=8.0Hz,1H),4.61(s with fine coupling,1H),5.00(s,1H),6.80(d with fine coupling,J=7.3Hz,1H),7.12−7.26(m,3H)ppm
IR(liquid film):
3474,2934,1602,1487,1389,1259,1036,779cm-1
MASS(EI,70ev,m/z,%):
378(M+,5),276(17),157(72),136(100),126(31),107(14),85(54),55(36)。
【0062】
(実施例10)
【0063】
【化20】
Figure 0004453256
室温にて、3−ヒドロキシ−2−(3−メトキシフェニル)−4,4−ジメチル−3−[1,1−ジメチル−2−(テトラヒドロピラン−2−イルオキシ)エチル]テトラヒドロフラン(化合物〔10〕)(1.05g,2.774mmol)を溶解させたメタノール(10mL)溶液に、1N塩酸水溶液(1滴)を加え、その後、さらに1N塩酸水溶液(1滴)を加えて一昼夜攪拌した。その反応溶液を飽和炭酸水素ナトリウム水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物(827mg)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:2)で流した。その結果、目的の3−(2−ヒドロキシ−1,1−ジメチル)−2−(3−メトキシフェニル)−4,4−ジメチルテトラヒドロフラン−3−オール(化合物〔11〕)を無色油状物(766mg,2.602mmol,93.8%)として得た。11は異性体を精製せずに次の反応に供した。
【0064】
無色粒状晶(mp.102.0〜102.2℃)
1H−NMR(400MHz,CDCl3):
δH 0.79(br−s,3H),1.01(s,3H),1.25(s,3H),1.37(s,3H),2.17(t,J=5.0Hz,1H),3.22(dd,J=10.9and5.0Hz,1H),3.49−3,51(m,1H),3.70(d,J=8.1Hz,1H),3.81(s,3H),3.89(d,J=8.1Hz,1H),4.52(br−s,1H),5.05(s,1H),6.81(d with fine coupling,J=8.0Hz,1H),7.14(s,1H),7.15(d,J=8.0Hz,1H),7.22(t,J=8.0Hz,1H)ppm
IR(KBr):
3295,2938,2877,1607,1583,1486,1456,1284,1043,779cm-1
MASS(EI,70ev,m/z,%):
294(M+,20),276(33),236(45),136(100),121(32),107(23),85(43),73(12),70(29)。
【0065】
(実施例11)
【0066】
【化21】
Figure 0004453256
窒素雰囲気下、0℃にて、60%水素化ナトリウム(1.29g,32.25mmol,1.6eq.)を懸濁させたDMF(20mL)溶液に、3−(2−ヒドロキシ−1,1−ジメチル)−2−(3−メトキシフェニル)−4,4−ジメチルテトラヒドロフラン−3−オール(化合物〔11〕)(6.00g,20.38mmol)を溶解したDMF(40mL)溶液を20分かけて滴下し、5−ブロモ吉草酸(5mL,31.33mmol,1.5eq.)を加えて5時間30分攪拌した。その反応溶液を飽和塩化アンモニウム水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾燥、濃縮し、残留物を黄色油状物(10.5g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:4)で流した。その結果、目的の3−(7−エトキシカルボニル−1,1−ジメチル−3−オキサヘプチル)−3−ヒドロキシ−2−(3−メトキシフェニル)−4,4−ジメチルテトラヒドロフラン(化合物〔12〕)を無色油状物12a(6.03g,14.26mmol,70.0%)、12a+12b(1.68g,3.988mmol,19.6%)、12b(223mg,0.5285mmol,2.6%)、合計(7.93g,18.77mmol,92.1%)として得た。
【0067】
【化22】
Figure 0004453256
12a
1H−NMR(400MHz,CDCl3):
δH 0.79(br−s,3H),1.06(s,3H),1.19(s,3H),1.26(t,J=7.1Hz,3H),1.35(s,3H),1.58−1.71(m,4H),2.32(t,J=7.1Hz,2H),2.80(d,J=9.3Hz,1H),3.18−3.24(br,2H),3.68(d,J=8.1Hz,1H),3.80(s,3H),3.87(d,J=8.1Hz,1H),4.13(q,J=7.1Hz,2H),4.88(br,1H),5.04(s,1H),6.80(d with fine coupling,J=8.1Hz,1H),7.12(s,1H),7.14(d,J=8.1Hz,1H),7.21(t,J=8.1Hz,1H)ppm。
13C−NMR(125MHz,CDCl3):
δC14.1,21.6,23.3,25.3,28.8,33.7,41.5,47.7,55.0,60.1,70.6,80.0,81.7,88.4,92.3,112.8,114.0,120.8,128.4,142.2,159.0,173.2ppm
IR(liquid film):
3447,2936,2873,1734,l603,1488,1372,1093,784cm-1
MASS(EI,70ev,m/z,%):
422(M+,8),245(100),243(53),188(9),147(13),136(57),107(18),101(41),83(26),55(22)。
【0068】
12b
1H−NMR(400MHz,CDCl3):
δH 1.01(s,3H),1.16(s,3H),1.21(s,3H),1.25(t,J=7.2Hz,3H),1.37(s,3H),1.32−1.37(m,2H),1.49−1.52(m,2H),2.23(t,J=7.5Hz,2H),2.55(dd,J=13.5and6.5Hz,1H),2.82(d,J=9.3Hz,1H),2.94(dt,J=13.5and6.5Hz,1H),3.08(d.J=9.3Hz,1H),3.44(d,J=7.1Hz,1H),3.81(s,3H),4.12(q,J=7.1Hz,2H),4.12(d,J=7.1Hz,1H),6.83(ddd,J=7.8and2.7and1.3Hz,1H),7.10(d with fine coupling,J=7.8Hz,1H),7.16(dd,J=2.7and1.3Hz,1H),7.21(t,J=7.8Hz,1H)ppm。
13C−NMR(100MHz,CDCl3):
δC 14.3,21.6,23.7,26.9,28.7,33.9,40.4,48.4,55.2,60.2,70.5,81.0,81.7,83.9,86.4,113.5,115.5,122.5,128.3,142.4,159.0,173.2ppm
IR(liquid film):
3403,2963,2873,1734,1599,1486,1372,1094,778cm-1
MASS(EI,70ev,m/z,%):
422(M+,21),245(24),243(21),147(28),136(92),107(17),101(64),55(27)。
【0069】
(実施例12)
【0070】
【化23】
Figure 0004453256
窒素雰囲気下、0℃にて、3−(7−エトキシカルボニル−1,1−ジメチル−3−オキサヘプチル)−3−ヒドロキシ−2−(3−メトキシフェニル)−4,4−ジメチルテトラヒドロフラン(化合物〔12〕)(1.39g,3.298mmol)を溶解させたジクロロメタン(14mL)溶液にピリジン(2.42mL,32.99mmol,10.0eq.)を加え、塩化チオニル(0.3mL,4.113mmol,1.2eq.)を加えて徐々に室温に戻し、7時間35分攪拌した。その反応溶液を飽和炭酸水素ナトリウム水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物(1.29g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:6)で流した。その結果、目的の4−(7−エトキシカルボニル−1,1−ジメチル−3−オキサヘプチル)−5−(3−メトキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔13〕)を無色油状物(1.04g,2.560mmol,77.6%)として得た。
1H−NMR(400MHz,CDCl3):
δH 1.04(s,6H),1.25(t,J=7.1Hz,3H),1.31(s,6H),1.54−1.57(m,2H),1.66−1.70(m,2H),2.32(t,J=7.5Hz,2H),3.10(s,1H),3.25(t,J=6.2Hz,2H),3.80(s,3H),3.87(s,2H),3.80(s,3H),3.87(s,2H),4.12(q,J=7.1Hz,2H),6.85−6.86(m,2H),6.90(dt,J=7.4and1.2Hz,1H),7.21−7.25(m,1H)ppm。
13C−NMR(100MHz,CDCl3):
δC 14.3,21.9,27.3,27.4,29.1,34.1,37.0,47.0,55.2,60.1,70.4,79.5,83.0,113.9,115.1,122.3,122.3,128.7,137.0,151.0,158.9,173.5ppm
IR(liquid film):
2956,2866,1735,1596,1465,1370,1048,785cm-1
MASS(EI,70ev,m/z,%):
404(M+,2),258(19),245(100),243(43),135(20),55(6)。
【0071】
(実施例13)
【0072】
【化24】
Figure 0004453256
窒素雰囲気下、0℃にて、60%水素化ナトリウム(465mg,11.63mmol,4.2eq.)を懸濁させたDMF(4mL)溶液に、エタンチオール(1mL,13.60mmol,4.8eq.)を加え、室温に戻した後、4−(7−エトキシカルボニル−1,1−ジメチル−3−オキサヘプチル)−5−(3−メトキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔13〕)(1.13g,2.791mmol)を溶解したDMF(7mL)溶液を5分かけて滴下し、11時間還流した。その反応溶液を飽和塩化アンモニウム水溶液に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾燥、濃縮し、残留物を黄色油状物(1.18g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:1)で流した。その結果、目的の、4−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−5−(3−ヒドロキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔14〕)を無色油状物(607mg,1.674mmol,60,0%)として得た。
【0073】
1H−NMR(400MHz,CDCl3):
δH 1.03(s,6H),1.30(s,6H),1.56−1.63(m,2H),1.70−1.77(m,2H),2.42(t,J=7.1Hz,2H),3.10(s,2H),3.26(t,J=5.9Hz,2H),3.86(s,2H),6.79(d with fine coupling,J=2.6Hz,1H),6.86(s,1H),6.85(d,J=11.2Hz,1H),7.17(t,J=7.8Hz,1H)ppm。
13C−NMR(100MHz,CDCl3):
δC 21.9,27.3,27.5,28.9,33.7,37.1,47.0,70.5,79.5,82.9,115.3,116.9,122.0,122.0,128.9,136.9,150.7,155.2,178.8ppm
IR(liquid film):
3376,2957,2869,1709,1595,1445,1047,787cm-1
MASS(EI,70ev,m/z,%):
362(M+,3),244(22),231(100),229(46),121(37),55(10)。
【0074】
(実施例14)
【0075】
【化25】
Figure 0004453256
窒素雰囲気下、室温にて、4−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−5−(3−ヒドロキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔14〕)(2.17g,6.000mmol)を溶解させたジクロロメタン(20mL)溶液に、トリエチルアミン(3mL,21.55mmol,3.6eq.)を加え、さらに0℃にして無水酢酸(1mL,10.60mmol,1.8eq.)を加えて室温にもどし、8時間10分攪拌した。その反応溶液を飽和食塩水に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物(2.66g)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:4)で流した。その結果、目的の5−(3−アセトキシフェニル)−4−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔15〕)を無色油状物(1.36g,3.335mmol,55.6%)として得た。
1H−NMR(400MHz,CDCl3):
δH 1.05(s,6H),1.30(s,6H),1.54−1.61(m,2H),1.67−1.74(m,2H),2.28(s,3H),2.38(t,J=7.3Hz,2H),3.08(s,2H),3.24(t,J=6.1Hz,2H),3.86(s,2H),7.05(ddd,J=7.8and2.4and1.2Hz,1H),7.08(t,J=1.2Hz,1H),7.19(dt,J=7.8and1.2Hz,1H),7.32(t,J=7.8Hz,1H)ppm。
【0076】
13C−NMR(125MHz,CDCl3):
δC 21.1,21.7,27.3,27.4,28.9,33.7,37.0,47.1,70.3,79.5,83.1,121.2,123.0,123.2,127.3,128.7,137.2,150.0,l50.1,169.2,179.2ppm
IR(liquid film):
2957,2868,1767,1708,1603,1583,1367,1204,785,706cm-1
MASS(EI,70ev,m/z,%):
404(M+,1),273(100),271(47),229(13),163(10),121(21)。
【0077】
(実施例15)
【0078】
【化26】
Figure 0004453256
酸素雰囲気下、0℃にて、5−(3−アセトキシフェニル)−4−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔15〕)(104mg,0.2666mmol)を溶解させたジクロロメタン溶液にTPP(1.0mg)を加え940Wナトリウムランプを30分あて、攪拌し、濃縮し、残留物を赤色油状物(129mg)として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:2)で流した。その結果、目的の、1−(3−アセトキシフェニル)−5−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−4,4−ジメチル−2,6,7−トリオキサビシクロ[3.2.0]ヘプタン(化合物〔16〕)を黄色油状物(105mg,0.2412mmol,94.0%)として得た。
1H−NMR(400MHz,CDCl3):
δH 0.87(s,3H),1.14(s,3H),1.15(s,3H),1.38(s,3H),1.54−1.58(m,2H),1.63−1.68(m,2H),2.30(s,3H),2.35(t,J=7.3Hz,2H),3.24−3.32(m,4H),3.82(d,J=8.2Hz,1H),4.58(d,J=8.2Hz,1H),7.14(d with fine coupling,J=8.0Hz,1H),7.36(s with fine coupling,1H),7.41(t,J=8.0Hz,1H),7.51(d,J=8.0Hz,1H),9.79(br,1H)ppm。
13C−NMR(125MHz,CDCl3):
δC 17.7,20.6,21.1,21.5,22.2,24.8,28.8,33.6,41.1,45.6,70.5,75.9,80.3,105.0,116.4,122.0,122.7,125.7,128.9,l37.4,150.3,169.1,179.5ppm
IR(liquid film):
2956,l767,1709,1487,1370,1206,793,700cm-1
MASS(EI,70ev,m/z,%):
404(M+,1),273(18),163(91),121(54),101(100),83(30)。
【0079】
(実施例16)
【0080】
【化27】
Figure 0004453256
窒素雰囲気下、室温にて、5−(3−アセトキシフェニル)−4−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔15〕)(209mg,0.5167mmol)を溶解させたTHF(2.5mL)溶液に、エタノール(48mg,1.042mmol,2.0eq.),トリフェニルホスフィン(275mg,1.048mmol,2.0eq.)を加え、さらにTHF(0.5mL)に溶解したアゾジカルボン酸ジエチル(185mg,1.062mmol,2.1eq.)を加えて20分攪拌した。その反応溶液を1N塩酸水溶液,飽和食塩水に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和炭酸水素ナトリウム水溶液,飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾燥、濃縮し、残留物を得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:20)で流した。その結果、目的の、5−(3−アセトキシフェニル)−4−(7−エトキシカルボニル−1,1−ジメチル−3−オキサヘプチル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔17〕)を無色油状物(172mg,0.3976mmol,77.0%)として得た。
【0081】
1H−NMR(400MHz,CDCl3):
δH 1.04(s,6H),1.25(t,J=7.1Hz,3H),1.30(s,6H),1.53−1.58(m,2H),1.64−1.70(m,2H),2.78(s,3H),2.32(t,J=7.4Hz,2H),3.07(s,2H),3.23(t,J=6.4Hz,2H),3.86(s,2H),4.12(q,J=7.2Hz,2H),7.05(ddd,J=7.9and2.5and1.2Hz,1H),7.08(t,J=1.2Hz,1H),7.18(td,J=7.9and1.2Hz,1H),7.32(t,J=7.9Hz,1H)ppm。
【0082】
13C−NMR(125MHz,CDCl3):
δC 14.2,21.0,21.9,27.2,27.3,29.0,34.1,37.0,47.1,60.1,70.4,79.4,83.0,121.2,123.0,123.2,127.2,128.6,137.2,150.0,169.0,173.6ppm
IR(liquid film):
2957,2867,1768,1735,1203cm-1
MASS(EI,70ev,m/z,%):
432(M+,1),286(33),273(100),229(14),163(5),149(37),129(8),121(14),101(8)。
【0083】
(実施例17)
【0084】
【化28】
Figure 0004453256
酸素雰囲気下、0℃にて、5−(3−アセトキシフェニル)−4−(7−エトキシカルボニル−1,1−ジメチル−3−オキサヘプチル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔17〕)(76mg,0.1750mmol)を溶解させたジクロロメタン(7mL)溶液にTPP(0.8mg)を加え940Wナトリウムランプを45分あて、攪拌し、濃縮し、残留物を赤色油状物として得た。その残留物をシリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:10)で流した。その結果、目的の1−(3−アセトキシフェニル)−5−(7−エトキシカルボニル−1,1−ジメチル−3−オキサヘプチル)−4,4−ジメチル−2,6,7−トリオキサビシクロ[3.2.0]ヘプタン(化合物〔18〕)を黄色油状物(78mg,0.1679mmol,95.9%)として得た。
1H−NMR(400MHz,CDCl3):
δH 0.86(s,3H),1.15(s,3H),1.16(s,3H),1.25(t,J=7.1Hz,3H),1.38(s,3H),1.52−1.55(m,2H),1.61−1.66(m,2H),2.29(t,J=7.7Hz,2H),2.30(s,3H),3.25(dd,J=9.3and7.7Hz,2H),3.29(t,J=6.2Hz,2H),3.82(d,J=8.2Hz,1H),4.12(q,J=7.1Hz,2H),4.58(d,J=8.2Hz,1H),7.14(d with fine coupling,J=8.0Hz,1H),7.37(s with fine coupling,1H),7.41(t,J=8.0Hz,1H),7.51(d,J=8.0Hz,1H)ppm。
【0085】
13C−NMR(125MHz,CDCl3):
δC 14.2,21.1,21.8,22.3,28.9,34.0,41.1,45.6,60.2,70.6,75.9,80.3,105.0,116.4,121.9,122.7,125.7,128.9,137.5,l50.4,169.1,173.6ppm
IR(liquid film):
2979,1767,1733,1487,1370,1205,701cm-1MASS(EI,70ev,m/z,%):
432(M+,trace),319(15),263(35),229(20),163(91),154(trace),149(10),129(100),121(33),101(36)。
【0086】
(実施例18)
【0087】
【化29】
Figure 0004453256
水素化ナトリウム(60%油性、412mg,10.3mmol)を窒素気流中、0℃で無水DMF(7mL)に懸濁した溶液に、無水DMF(4mL)に溶解した3−ヒドロキシ−3−(2−ヒドロキシ−1,1−ジメチルエチル)−2−(3−メトキシフェニル)−4,4−ジメチルテトラヒドロフラン(化合物〔11〕)(1.51g,5.13mmol)を滴下し、0℃で30分間、室温で20分間撹拌した。この溶液に0℃で、無水DMF(3mL)に溶解した11−ヨードウンデカン酸エチル(3.51g,10.3mmol)を加え4時間撹拌後、室温で一晩撹拌した。反応混合物を、飽和塩化アンモニウム水溶液に投じ、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後濃縮した。濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(4:1)で流しだしたところ3−(13−エトキシカルボニル−1,1−ジメチル−3−オキサトリデカン−1−イル)−2−(3−メトキシフェニル)−4,4−ジメチルテトラヒドロフラン(化合物〔19〕)が2.52g,97.0%の収率で無色油状物として得られた。
1H−NMR(400Hz,CDCl3
δH 0.78(s,3H),1.01(s,3H),1.20−1.45(m,21H),1.57−1.67(m,2H),1.77−1.87(m,2H),2.29(t,J=7.6Hz,2H),3.19(t,J=7.1Hz,2H),3.42−3.65(m,1H),3.70(d,J=8.1Hz,1H),3.81(s,3H),3.89(d,J=8.1Hz,1H),4.12(q,J=7.2Hz,2H),4.50−4.70(m,1H),5.04(s,1H),6.81(d with fine coupling,J=7.8Hz,1H),7.12−7.17(m,2H),7.22(t,J=7.8Hz,1H)ppm。
【0088】
(実施例19)
【0089】
【化30】
Figure 0004453256
3−(13−エトキシカルボニル−1,1−ジメチル−3−オキサトリデカン−1−イル)−2−(3−メトキシフェニル)−4,4−ジメチルテトラヒドロフラン(化合物〔19〕)(1.21g,2.39mmol)およびピリジン(2.0mL,24.7mmol)を、窒素気流中、無水ジクロロメタン(12mL)に溶解し0℃で攪拌した溶液に、塩化チオニル(0.25mL,3.43mmol)を加え5分間撹拌後、室温で1時間撹拌した。反応混合物を炭酸水素ナトリウム水溶液に投じ、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後濃縮した。濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(10:1)で流しだしたところ4−(13−エトキシカルボニル−1,1−ジメチル−3−オキサトリデカン−1−イル)−5−(3−メトキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔20〕)が1.06g、90.8%の収率で無色油状物として得られた。
1H−NMR(400Hz,CDCl3
δH 1.04(s,6H),1.23−1.34(m,21H),1.46−1.55(m,2H)1.57−1.65(m,2H),2.28(t,J=7.6Hz,2H)3.11(s,2H),3.24(t,J=6.6Hz,2H),3.80(s,3H),3.87(s,2H),4.12(q,J=7.1Hz,2H),6.83−6.88(m,2H),6.91(d with fine coupling,J=7.5Hz,1H),7.22(t withfine coupling,J=7.5Hz,1H)ppm。
【0090】
(実施例20)
【0091】
【化31】
Figure 0004453256
水素化ナトリウム(60%油性、704mg,17.6mmol)を窒素気流中、0℃で無水DMF(30mL)に懸濁した溶液に、エタンチオール(1.5mL,20.3mmol)を滴下し、室温で数分間撹拌した。この溶液を窒素気流中4−(13−エトキシカルボニル−1,1−ジメチル−3−オキサトリデカン−1−イル)−5−(3−メトキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン)(化合物〔20〕)に加え、140℃で20分間、続いて150℃で1時間加熱撹拌した。反応混合物を希塩酸に投じ、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後濃縮した。濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(2:1)で流しだしたところ4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−5−(3−ヒドロキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔21〕)が1.579g,94.2%の収率で無色油状物として得られた。
1H−NMR(400Hz,CDCl3
δH 1.04(s,6H),1.20−1.40(m,18H),1.46−1.55(m,2H),1.58−1.68(m,2H),2.35(t,J=7.4Hz,2H),3.12(s,2H),3.25(t,J=6.6Hz,2H),3.86(s,2H),6.76(d with fine coupling,J=8.0Hz,1H),6.79(s with fine coupling,1H),6.88(d,1H),7.17(dd,J=8.0and7.6Hz,1H)ppm。
【0092】
(実施例21)
【0093】
【化32】
Figure 0004453256
4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−5−(3−ヒドロキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔21〕)(1.57g,3.52mmol)およびトリエチルアミン(2.5mL,17.9mmol)を無水ジクロロメタン(15mL)に溶解し、窒素雰囲気下、0℃で撹拌した溶液に無水酢酸(0.50mL,5.30mmol)を加え、1.5時間撹拌した。反応混合物を希塩酸に投じ、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後濃縮した。濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(2:1)で流しだしたところ5−(3−アセトキシフェニル)−4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル−2,3−ジヒドロフランの無水物が1.353g、収率80.2%無色油状物として得られた。続いて5−(3−アセトキシフェニル)−4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔22〕)が126mg、収率7.3%で得られた。
1H−NMR(400Hz,CDCl3
δH 1.03(s,6H),1.20−1.37(m,18H),1.46−1.55(m,2H),1.57−1.67(m,2H),2.27(s,3H),2.34(t,J=7.5Hz,2H),3.09(s,2H),3.23(t,J=6.5Hz,2H),3.86(s,2H),7.05(ddd,J=8.1and2.4and1.1Hz,1H),7.09(s with fine coupling,1H),7.20(d with fine coupling,J=7.7Hz,1H),7.31(dd,J=8.1and7.7Hz,1H)ppm。
【0094】
(実施例22)
【0095】
【化33】
Figure 0004453256
5−(3−アセトキシフェニル)−4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔22〕)(125mg,0.256mmol)およびTPP(1mg)をジクロロメタン(12mL)に加え、酸素雰囲気下、0℃で30分間、940Wナトリウムランプで可視光照射した。反応混合物を濃縮し、シリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(10:1〜5:1)で流しだしたところ1−(3−アセトキシフェニル)−5−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−4,4−ジメチル−2,6,7−トリオキサビシクロ[3.2.0]ヘプタン(化合物〔23〕)が133mg,97.6%で得られた。
【0096】
1H−NMR(400Hz,CDCl3
δH 0.86(s,3H),1.15(s,3H),1.16(s,3H),1.20−1.40(m,12H),1.39(s,3H),1.43−1.52(m,2H),1.58−1.67(m,2H),2.30(s,3H),2.35(t,J=7.5Hz,2H),3.23(s,2H),3.27(t with fine coupling,J=6.6Hz,2H)3.82(d,J=8.1Hz,1H),4.58(d,J=8.1Hz,1H),7.14(ddd,J=8.1and2.3and1.1Hz,1H),7.37(s with fine coupling,1H),7.40(dd,J=8.1and7.9Hz,1H),7.51(d,J=7.9Hz,1H)ppm。
【0097】
(実施例23)
【0098】
【化34】
Figure 0004453256
エタノール(34mg,0.74mmol)、トリフェニルホスフィン(204mg,0.78mmol)および5−(3−アセトキシフェニル)−4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔22〕)(126mg,0.258mmol)を窒素気流中、室温で無水THF(1.0mL)に溶解し攪拌した溶液に、無水THF(0.5mL)に溶かしたアゾジカルボン酸ジエチル(135mg,0.77mmol)を加え、20分間攪拌した。反応終了後、反応混合物を希塩酸に投じ酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後濃縮した。濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(20:1〜10:1)で流しだしたところ5−(3−アセトキシフェニル)−4−(13−エトキシカルボニル−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔24〕)が111mg,83.3%の収率で無色油状物として得られた。
1H−NMR(500Hz,CDCl3
δH 1.03(s,6H),1.23−1.34(m,21H),1.47−1.54(m,2H),1.57−1.65(m,2H),2.28(s,3H),2.28(t,J=7.6Hz,2H),3.08(s,2H),3.22(t,J=6.5Hz,2H),3.86(s,2H),4.12(q,J=7.1Hz,1H),7.05(ddd,J=8.0and2.4and1.0Hz,1H),7.09(s with fine coupling,1H),7.20(d with fine coupling,J=7.6Hz,1H),7.32(dd,J=8.0and7.6Hz,1H)ppm。
【0099】
(実施例24)
【0100】
【化35】
Figure 0004453256
5−(3−アセトキシフェニル)−4−(13−エトキシカルボニル−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル2,3−ジヒドロフラン(化合物〔24〕)(57.8mg,0.112mmol)およびTPP(0.6mg)をジクロロメタン(6mL)に加え、酸素雰囲気下、0℃で30分間、940Wナトリウムランプで可視光照射した。反応混合物を濃縮し、シリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(10:1〜5:1)で流しだしたところ1−(3−アセトキシフェニル)−5−(13−エトキシカルボニル−1,1−ジメチル−3−オキサトリデカン−1−イル)−4,4−ジメチル−2,6,7−トリオキサビシクロ[3.2.0]ヘプタン(化合物〔25〕)が46mg、収率75.0%で無色油状物として得られた。
1H−NMR(400Hz,CDCl3
δH 0.86(s,3H),1.15(s,3H),1.16(s,3H),1.22−1.38(m,15H),1.39(s,3H),1.44−1.52(m,2H),1.57−1.65(m,2H),2.28(t,J=7.6Hz,2H),2.30(s,3H),3.23(s,2H),3.26(t with fine coupling,J=6.6Hz,2H),3.82(d,J=8.1Hz,1H),4.12(q,J=7.2Hz,2H),4.58(d,J=8.1Hz,1H),7.14(d with fine coupling,J=7.6Hz,1H),7.37(s with fine coupling,1H),7.41(dd,J=8.0and7.8Hz,1H),7.52(d,J=7.8Hz,1H)ppm。
【0101】
(実施例25)
【0102】
【化36】
Figure 0004453256
窒素雰囲気下、0℃にて、4−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−5−(3−ヒドロキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔14〕)(500mg,1.379mmol)を溶解させたDMF(10mL)溶液に、イミダゾール(282mg,4.142mmol,3.0eq.)を加え、さらにt−ブチルジメチルクロロシラン(624mg,4.140mmol,3.0eq.)を加えて室温にもどし、2時間攪拌した。その反応溶液を飽和食塩水に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物(806mg)として得た。その残留物をメタノール(15mL)に溶解し0℃に冷却した。これに炭酸カリウム(380mg,2.749mmol)を溶解した水(5mL)を滴下し、30分攪拌した。その反応溶液を飽和食塩水に投じ酢酸エチルで抽出を行った。水層を酢酸エチルで再度、抽出を行い、先の有機層と合わせ、飽和食塩水で洗浄した。有機層を無水硫酸マグネシウムで乾操、濃縮し、残留物を黄色油状物として得た。シリカゲルカラムクロマトグラフィーに掛け展開溶媒(酢酸エチル:ヘキサン=1:1)で流した。その結果、目的の4−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−5−(3−t−ブチルジメチルシロキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔26〕)を無色油状物(475mg,0.997mmol,72.3%)として得た。
1H−NMR(500MHz,CDCl3):
δH 0.18(s,6H),0.98(s,9H),1.04(s,6H),1.31(s,6H),1.56−1.62(m,2H),1.67−1.76(m,2H),2.38(t,J=7.0Hz,2H),3.10(s,2H),3.25(t,J=6.5Hz,2H),3.87(s,2H),6.77−6.80(m,2H),6.90(dd,J=8.0and1.5Hz,1H),7.15−7.19(m,1H)ppm。
【0103】
(実施例26)
【0104】
【化37】
Figure 0004453256
5−(3−t−ブチルジメチルシロキシフェニル)−4−(7−カルボキシ−1,1−ジメチル−3−オキサヘプチル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔26〕)(394mg,0.827mmol)を窒素雰囲気下、室温で無水アセトニトリル(5mL)に溶解した溶液に、ジ(N−スクシニミジル)カーボネート(318mg,1.241mmol)およびトリエチルアミン1滴を加え50分間撹拌した。反応溶液を濃縮し、濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(1:1)で流しだしたところ5−(3−t−ブチルジメチルシロキシフェニル)−3,3−ジメチル−4−(1,1−ジメチル−7−スクシニミドキシカルボニル−3−オキサヘプチル)−2,3−ジヒドロフラン(化合物〔27〕)が433mg、収率91.2%で無色油状物として得られた。
1H−NMR(500MHz,CDCl3):
δH 0.18(s,6H),0.98(s,9H),1.04(s,6H),1.31(s,6H),1.61−1.67(m,2H),1.81(quintet,J=7.5Hz,2H),2.64(t,J=7.5Hz,2H),2.84(br−d,J=6.5Hz,4H),3.10(s,2H),3.26(t,J=6.0Hz,2H),3.86(s,2H),6.77−6.80(m,2H),6.90(dd,J=9.0and1.5Hz,1H),7.17(t,J=8.0Hz,1H)ppm。
【0105】
(実施例27)
【0106】
【化38】
Figure 0004453256
5−(3−t−ブチルジメチルシロキシフェニル)−3,3−ジメチル−4−(1,1−ジメチル−7−スクシニミドキシカルボニル−3−オキサヘプチル)−2,3−ジヒドロフラン(化合物〔27〕)(313mg,0.545mmol)およびTPP(2.5mg)をジクロロメタン(15mL)に加え、酸素雰囲気下、0℃で1時間、940Wナトリウムランプで可視光照射した。反応混合物を濃縮し、シリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(1:1)で流しだしたところ1−(3−t−ブチルジメチルシロキシフェニル)−4,4−ジメチル−5−(1,1−ジメチル−7−スクシニイミドキシカルボニル−3−オキサヘプチル)−2,6,7−トリオキサビシクロ[3.2.0]へプタン(化合物〔28〕)が276mg、83.6%で得られた。
1H−NMR(500MHz,CDCl3):
δH 0.19(s,6H),0.86(s,3H),0.98(s,9H),1.14(s,3H),1.17(s,3H),1.38(s,3H),1.60−1.66(m,2H),1.78(quintet,J=8.0Hz,2H),2.62(t,J=7.0Hz,2H),2.84(br−d,J=6.0Hz,4H),3.24(d,J=9.0Hz,1H),3.30−3.35(m,3H),3.81(d,J=8.5Hz,1H),4.57(d,J=8.5Hz,1H),6.85−6.88(m,1H),7.11(s,1H),7.20−7.27(m,2H)ppm。
【0107】
(実施例28)
【0108】
【化39】
Figure 0004453256
4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−5−(3−ヒドロキシフェニル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔21〕)(553mg,1.24mmol)を窒素雰囲気下、室温で無水DMF(6mL)に溶解した溶液に、イミダゾール(257mg,3.77mmol)および塩化t−ブチルジメチルシラン(566mg,3.76mmol)を加え1.5時間撹拌した。反応混合物を飽和塩化アンモニウム水溶液に投じ、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後濃縮した。濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(2:1)で流しだしたところ5−(3−t−ブチルジメチルシロキシフェニル)−4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔29〕)が607mg、収率87.4%で無色油状物として得られた。
【0109】
1H−NMR(400Hz,CDCl3
δH 0.18(s,6H),0.98(s,9H),1.03(s,6H),1.27−1.30(m,18H),1.47−1.52(m,2H),1.63(quintet,J=7.2Hz,2H),2.34(t,J=7.6Hz,2H),3.10(s,2H),3.24(t,J=6.8Hz,2H),3.86(s,2H),6.76−6.79(m,2H),6.90(d with fine coupling,J=7.6Hz,1H),7.16(t with fine coupling,J=7.2Hz,1H)ppm。
【0110】
(実施例29)
【0111】
【化40】
Figure 0004453256
5−(3−t−ブチルジメチルシロキシフェニル)−4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル−2,3−ジヒドロフラン(化合物〔29〕)(405mg,0.722mmol)を窒素雰囲気下、室温で無水アセトニトリル(5mL)に溶解した溶液に、ジ(N−スクシニミジル)カーボネート(237mg,0.925mmol)およびトリエチルアミン1滴を加え50分間撹拌した。反応溶液を濃縮し、濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(2:1)で流しだしたところ5−(3−t−ブチルジメチルシロキシフェニル)−3,3−ジメチル−4−(1,1−ジメチル−13−スクシニミドキシカルボニル−3−オキサトリデカン−1−イル)−2,3−ジヒドロフラン(化合物〔30〕)が431mg、収率90.5%で無色油状物として得られた。
【0112】
1H−NMR(400Hz,CDCl3
δH 0.18(s,6H),0.98(s,9H),1.03(s,6H),1.28−1.31(m,18H),1.49−1.54(m,2H),1.74(quintet,J=7.6Hz,2H),2.59(t,J=7.6Hz,2H),2.82(s,4H),3.11(s,2H),3.24(t,J=6.8Hz,2H),3.86(s,2H),6.76−6.79(m,2H),6.90(d,J=7.6Hz,1H),7.16(t with finecoupling,J=7.2Hz,1H)ppm。
【0113】
(実施例30)
【0114】
【化41】
Figure 0004453256
5−(3−t−ブチルジメチルシロキシフェニル)−3,3−ジメチル−4−(1,1−ジメチル−13−スクシニミドキシカルボニル−3−オキサトリデカン−1−イル)−2,3−ジヒドロフラン(化合物〔30〕)(177mg,0.269mmol)およびTPP(0.8mg)をジクロロメタン(15mL)に加え、酸素雰囲気下、0℃で1.5時間、940Wナトリウムランプで可視光照射した。反応混合物を濃縮し、シリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(2:1)で流しだしたところ1−(3−t−ブチルジメチルシロキシフェニル)−4,4−ジメチル−5−(1,1−ジメチル−13−スクシニイミドキシカルボニル−3−オキサトリデカン−1−イル)−2,6,7−トリオキサビシクロ[3.2.0]へプタン(化合物〔31〕)が181mg、97.5%で得られた。
1H−NMR(400Hz,CDCl3
δH 0.19(s,6H),0.87(s,3H),0.98(s,9H),1.14(s,3H),1.16(s,3H),1.26−1.40(m,12H),1.38(s,3H),1.46−1.50(m,2H),1.74(quintet,J=7.6Hz,2H),2.60(t,J=7.6Hz,2H),2.82(s,4H),3.22−3.29(m,4H),3.80(d,J=8.4Hz,1H),4.57(d,J=8.0Hz,1H),6.84−6.87(m,1H),7.11(s,1H),7.12−7.25(m,2H)ppm。
【0115】
(実施例31)
【0116】
【化42】
Figure 0004453256
1−(3−t−ブチルジメチルシロキシフェニル)−4,4−ジメチル−5−(1,1−ジメチル−13−スクシニイミドキシカルボニル−3−オキサトリデカン−1−イル)−2,6,7−トリオキサビシクロ[3.2.0]へプタン(53.7mg,0.0778mmol)(化合物〔31〕)を窒素雰囲気下、0℃で無水ジクロロメタン(1mL)に溶解した溶液に、無水ジクロロメタン(1mL)に溶解したβ−フェネチルアミン(11mg,0.0908mmol)を加え1時間20分間攪拌した。反応溶液にさらに無水ジクロロメタン(0.5mL)に溶解したβ−フェネチルアミン(5mg,0.0413mmol)を加え30分間攪拌した。反応混合物を濃縮し、シリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(1:1)で流しだしたところ1−(3−t−ブチルジメチルシロキシフェニル)−4,4−ジメチル−5−[1,1−ジメチル−13−(2−フェニルエチルカルバモイル)−3−オキサトリデカン−1−イル]−2,6,7−トリオキサビシクロ[3.2.0]ヘプタン(化合物〔32〕)が51.8mg、95.6%で得られた。
1H−NMR(400Hz,CDCl3
δH 0.19(s,6H),0.86(s,3H),0.98(s,9H),1.14(s,3H),1.16(s,3H),1.24−1.40(m,12H),1.38(s,3H),1.45−1.50(m,2H),1.52−1.60(m,2H),2.11(t,J=7.6Hz,2H),2.81(t,J=6.8Hz,2H),3.22−3.29(m,4H),3.52(q,J=6.8Hz,2H),3.80(d,J=8.4Hz,1H),4.57(d,J=8.0Hz,1H),6.84−6.87(m,1H),7.11(s,1H),7.18−7.33(m,7H)ppm。
【0117】
(実施例32)
【0118】
【化43】
Figure 0004453256
5−(3−アセトキシフェニル)−4−(13−カルボキシ−1,1−ジメチル−3−オキサトリデカン−1−イル)−3,3−ジメチル−2,3−ジヒドロフラン(192mg,0.393mmol)(化合物〔22〕)を窒素雰囲気下、室温で無水アセトニトリル(3mL)に溶解した溶液に、ジ(N−スクシニミジル)カーボネート(125mg、0.488mmol)およびトリエチルアミン1滴を加え1.5時間撹拌した。反応溶液を濃縮し、濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(2:1)で流しだしたところ5−(3−アセトキシフェニル)−3,3−ジメチル−4−(1,1−ジメチル−13−スクシニイミドキシカルボニル−3−オキサトリデカン−1−イル)−2,3−ジヒドロフラン(化合物〔33〕)が191mg、収率83.0%で無色油状物として得られた。
1H−NMR(400Hz,CDCl3
δH 1.03(s,6H),1.26−1.42(m,18H),1.47−1.52(m,2H),1.73(quintet,J=7.6Hz,2H),2.27(s,3H),2.59(t,J=7.6Hz,2H),2.80(s,4H),3.08(s,2H),3.23(t,J=6.8Hz,2H),3.85(s,2H),7.03−7.09(m,2H),7.19(d with fine coupling,J=7.6Hz,1H),7.31(t,J=7.6Hz,1H)ppm。
【0119】
(実施例33)
【0120】
【化44】
Figure 0004453256
5−(3−アセトキシフェニル)−3,3−ジメチル−4−(1,1−ジメチル−13−スクシニイミドキシカルボニル−3−オキサトリデカン−1−イル)−2,3−ジヒドロフラン(化合物〔33〕)(100mg,0.171mmol)およびTPP(0.8mg)をジクロロメタン(10mL)に加え、酸素雰囲気下、0℃で1時間、940Wナトリウムランプで可視光照射した。反応混合物を濃縮し、シリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(3:2)で流しだしたところ1−(3−アセトキシフェニル)−4,4−ジメチル−5−(1,1−ジメチル−13−スクシニイミドキシカルボニル−3−オキサトリデカン−1−イル)−2,6,7−トリオキサビシクロ[3.2.0]ヘプタン(化合物〔34〕)が87mg,82.5%で得られた。
1H−NMR(400Hz,CDCl3
δH 0.86(s,3H),1.15(s,3H),1.16(s,3H),1.24−1.40(m,12H),1.39(s,3H),1.46−1.50(m,2H),1.74(quintet,J=7.6Hz,2H),2.30(s,3H),2.60(t,J=7.6Hz,2H),2.83(s,4H),3.23(s,2H),3.27(t with fine coupling,J=6.8Hz,2H),3.81(d,J=8.0Hz,1H),4.58(d,J=8.0Hz,1H),7.12−7.15(m,1H),7.37(s,1H),7.40(t,J=7.6Hz,1H),7.51(d,J=7.2Hz,1H)ppm。
【0121】
(実施例34)
【0122】
【化45】
Figure 0004453256
特開2002−338576号公報に記載の公知化合物5−(3−t−ブチル−4,4−ジメチル−4,5−ジヒドロフラン−2−イル)−2−(5−トリフルオロメチルイソオキサゾール−3−イル)フェノール(化合物〔35〕)(500mg、1.31mmol)を室温でピリジン(100mL)に溶解した溶液に、DMAP(20mg)および無水グルタル酸(1.496g、13.11mmol)を加え2時間100℃にて撹拌した。反応混合物を1N−塩酸水溶液に投じ、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後濃縮した。濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(1:1)で流しだしたところ5−(3−t−ブチル−4,4−ジメチル−4,5−ジヒドロフラン−2−イル)−2−(5−トリフルオロメチルイソオキサゾール−3−イル)フェニルグルタレート(化合物〔36〕)が510mg、収率78.5%で白色固体として得られた。
1H−NMR(500Hz,CDCl3
δH 1.07(s,9H),1.34(s,6H),2.11(quintet,J=7.0Hz,2H),2.57(t,J=7.5Hz,2H),2.79(t,J=7.5Hz,2H),3.89(s,2H),7.16(d,J=1.0Hz,1H),7.34(dd,J=8.3and1.5Hz,1H),7.55(d,J=1.0Hz,1H),8.10(d,J=7.5Hz,1H)ppm。
【0123】
(実施例35)
【0124】
【化46】
Figure 0004453256
5−(3−t−ブチル−4,4−ジメチル−4,5−ジヒドロフラン−2−イル)−2−(5−トリフルオロメチルイソオキサゾール−3−イル)フェニルグルタレート(化合物〔36〕)(510mg、1.03mmol)を0℃でDMF(10mL)に溶解した溶液に、N−ヒドロキシスクシンイミド(179mg、1.55mmol)および1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(302mg、1.57mmol)を加え4℃にて一晩撹拌した。反応混合物を飽和食塩水に投じ、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後濃縮した。濃縮物をシリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(1:1)で流しだしたところ5−(3−t−ブチル−4,4−ジメチル−4,5−ジヒドロフラン−2−イル)−2−(5−トリフルオロメチルイソオキサゾール−3−イル)フェニルスクシンイミジルグルタレート(化合物〔37〕)が515mg、収率84.4%で白色固体として得られた。
1H−NMR(500Hz,CDCl3
δH 1.07(s,9H),1.34(s,6H),2.21(quintet,J=7.0Hz,2H),2.83−2.87(m,8H),3.89(s,2H),7.17(d,J=1.0Hz,1H),7.34(dd,J=8.3and1.5Hz,1H),7.63(d,J=1.0Hz,1H),8.10(d,J=8.5Hz,1H)ppm。
【0125】
(実施例36)
【0126】
【化47】
Figure 0004453256
5−(3−t−ブチル−4,4−ジメチル−4,5−ジヒドロフラン−2−イル)−2−(5−トリフルオロメチルイソオキサゾール−3−イル)フェニルスクシンイミジルグルタレート(化合物〔37〕)(505mg,0.85mmol)およびTPP(15mg)をジクロロメタン(15mL)に加え、酸素雰囲気下、0℃で2時間、940Wナトリウムランプで可視光照射した。反応混合物を濃縮し、シリカゲルカラムにかけ、ヘキサンと酢酸エチルの混合溶媒(1:1)で流しだしたところ5−(5−t−ブチル−4,4−ジメチル−2,6,7−トリオキサビシクロ[3.2.0]ヘプト−1−イル)−2−(5−トリフルオロメチルイソオキサゾール−3−イル)フェニルスクシンイミジルグルタレート(化合物〔38〕)が445mg、収率83.6%で白色固体として得られた。 1H−NMR(500Hz,CDCl3
δH 1.00(s,9H),1.17(s,3H),1.39(s,3H),2.22(quintet,J=7.0Hz,2H),2.83−2.89(m,8H),3.87(d,J=8.0Hz,1H),4.60(d,J=8.0Hz,1H),7.49(s,1H),7.65(dd,J=1.5Hz,1H),7.68(d,J=9.5Hz,1H),8.17(d,J=8.0Hz,1H)ppm。
【0127】
(実施例37)
甲状腺刺激ホルモン抗体(TSH抗体)を透析チューブに入れ、0.1Mリン酸緩衝液(pH7.0)に対して2〜8℃で透析を行った。1回に1Lの緩衝液を用い、4時間以上透析を行った。透析終了後、0.45μmフィルターを装着したシリンジに抗体溶液をとり、ろ過を行った。この時の体積は0.45mL、濃度は17.7mg/mLであった。この抗体溶液のタンパク濃度が5mg/mLとなるように0.1Mリン酸緩衝液(pH7.0)を加えた。この溶液を反応容器に移し4±1℃に制御された恒温槽に30分に浸漬した。これに5−(5−t−ブチル−4,4−ジメチル−2,6,7−トリオキサビシクロ[3.2.0]ヘプト−1−イル)−2−(5−トリフルオロメチルイソオキサゾール−3−イル)フェニルスクシンイミジルグルタレート(化合物〔38〕)のDMF溶液(濃度:10.4mg/mL)を0.015mL投入した。滴下終了後、ボルテックスを用いて静かに攪拌した後攪拌を止め、4±1℃で17時間恒温槽に放置した。反応終了後、反応溶液を透析チューブに移し、0.1Mリン酸/NaCl緩衝液(0.1%NaN3)(pH7.0)に対して2〜8℃で透析を行った。1回に1L以上の緩衝液を用い、4時間以上、3回透析を行った。透析終了後、0.22μmフィルターを装着したシリンジに抗体溶液をとり、ろ過を行った。この結果、0.88mLの化学発光基質標識甲状腺刺激ホルモン抗体が得られ、その濃度は7599mAであった。
【0128】
(実施例38)
実施例37で作製した化学発光基質標識甲状腺刺激ホルモン抗体を、20mMアセス(0.1%BSA,0.1%NaN3)緩衝液(pH6.5)にて濃度が100mAとなるように希釈した。この溶液33μLにトリガーとして0.5N水酸化ナトリウム水溶液200μLを添加して、発光測定装置を用いて発光測定を行った。得られた発光曲線を図1に示す。
【0129】
【発明の効果】
本発明の1,2−ジオキセタン誘導体[I]及び[III]は化合物自体が安定であるので、取扱いが容易である。
【0130】
また本発明の1,2−ジオキセタン誘導体[I]及び[III]は、例えばその構造中のX又はWなどの基の一部を介して有機化合物及び生物学的分子への標識が可能であり、このため特異的結合性を有する物質を結合させることにより本発明の免疫測定試薬を得ることができる。本発明の免疫測定試薬を用いることにより、免疫測定等の測定時にバックグラウンド低減が可能である。この効果により、さらなる免疫測定等の高感度測定が可能となる。
【0131】
さらに、1,2−ジオキセタン誘導体[I]において、Zが−OSi(R78)−(ただし、R7及びR8は互いに独立にアルキル基又はアリール基である。)、又は−(R910)SiO−(ただし、R9及びR10は互いに独立にアルキル基又はアリール基である。)で表される基の場合、及び1,2−ジオキセタン誘導体[III]の場合は、それらにより本発明の免疫測定試薬を得、それを用いて固相上に免疫反応生成物を形成させ検出する場合には、以下のような効果がある。即ち、固相上に形成された免疫反応生成物中の1,2−ジオキセタン誘導体に相当する部分は、フッ素イオン存在下もしくはアルカリ性条件下において分解するが、その構造による特性のため1,2−ジオキセタン構造を有する部分が固相上の免疫反応生成物から切断され、溶液中へ放出されるような形で分解し、それと同時に発光が起きる。従って発光は固相上ではなく、溶液中で生じることとなる。このため、発光の検出が容易で、ノイズが少なく、高感度な測定が可能となる。また固相上での発光を検出するのではないため、固相の形状により検出にばらつきを生じる恐れがない。このように液相(均一系)での発光をもれなく検出するのに適したものとなる。
【図面の簡単な説明】
【図1】実施例38で得られた発光曲線を示す図である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to 1,2-dioxetane derivatives. The 1,2-dioxetane derivative of the present invention is a compound capable of inducing chemiluminescence, and can be used as a substrate for immunoassay, for example.
[0002]
[Prior art]
Various 1,2-dioxetane derivatives have been conventionally synthesized, and it is known that a compound having a spiroadamantyl group bonded to the 3-position is particularly useful as a chemiluminescent substrate (for example, Patent Document 1, Patent Document) 2). Moreover, various compounds are known as what the present inventors already manufactured (for example, refer patent documents 3-6). These 1,2-dioxetane derivatives have an enzyme recognition site such as a phosphate group, and emit light when triggered by the enzyme. These series of compounds are used in a method for detecting the activity of an enzyme labeled with an antigen or antibody adsorbed on a solid phase after an immune reaction by a chemiluminescence reaction. In this method, since a 1,2-dioxetane solution is added to the measurement system, even when no enzyme is present, luminescence due to non-enzymatic decomposition reaction such as heat and trace impurities is detected, leading to an increase in background. This increase in background has been a problem because it greatly affects the detection sensitivity.
[0003]
For this reason, various compounds have been synthesized (for example, see Patent Documents 7 to 9), but the stability of dioxetane itself still remains as a problem.
[0004]
[Patent Document 1]
Japanese Patent Publication No. 5-21918
[Patent Document 2]
Japanese Patent Publication No. 5-45590
[Patent Document 3]
JP-A-8-245615
[Patent Document 4]
Japanese Patent Application Laid-Open No. 8-16985
[Patent Document 5]
JP-A-8-165287
[Patent Document 6]
JP 2002-338576 A
[Patent Document 7]
Japanese Patent No. 2572171
[Patent Document 8]
JP-T-08-502968
[Patent Document 9]
Special table 2002-508654 gazette
[0005]
[Problems to be solved by the invention]
As described above, various studies have been made on 1,2-dioxetane derivatives, and various compounds have been created. However, the compound itself is stable and easy to handle for application in the field of clinical tests, etc., and low background performance is required at the time of measurement for higher sensitivity, which is superior to conventional compounds. The creation of new compounds was desired.
[0006]
[Means for Solving the Problems]
The inventors of the present application have conducted a intensive study in order to create a compound that is superior to the conventional compounds under the circumstances described above. As a result, the inventors have a stable skeleton, and have a background during measurement such as immunoassay. The present invention has been completed by synthesizing 1,2-dioxetane derivatives that can be reduced to organic compounds and biological molecules that can be reduced.
[0007]
That is, the present invention
Formula [I]
[0008]
[Chemical formula 5]
Figure 0004453256
(Wherein Ar is an alkyl group, an aryl group, a halogen atom, an alkoxyl group, a carboxyl group, a formyl group, an alkyl ester, an aryl ester, an alkyl ketone, an aryl ketone, or a heterocyclic ring) X may be a labelable substituent or ester to an organic compound or biological molecule, Y may be a hydrogen atom, an acyl group, or —Si (RFourRFiveR6) (However, RFour, RFiveAnd R6Are independently an alkyl group or an aryl group. Z is an alkyl group, an aryl group, an oxygen atom, a sulfur atom, a carbonyl group,-(CO) -O-, -O- (CO)-, -NH-, -NH-CO. -, -CO-NH-, -OSi (R7R8)-(However, R7And R8Are independently an alkyl group or an aryl group. ) Or-(R9RTen) SiO- (however, R9And RTenAre independently an alkyl group or an aryl group. ) And R1, R2Is an alkyl group or an aryl group, RThreeIs a spacer. ).
[0009]
The present invention also provides a compound represented by the general formula [III].
[0010]
[Chemical 6]
Figure 0004453256
(Wherein Ar is an alkyl group, an aryl group, a halogen atom, an alkoxyl group, a carboxyl group, a formyl group, an alkyl ester, an aryl ester, an alkyl ketone, an aryl ketone, or a heterocyclic ring) And X is a labelable substituent or ester to an organic compound or biological molecule, V is a carbonyl group or —Si (R15R16)-(However, R15And R16Are independently an alkyl group or an aryl group. ) And R11, R12Each independently represents a hydrogen atom, an alkyl group or an aryl group, or R11, R12Together may form a cyclic or polycyclic organic ring group that is spiro-bonded to the dioxetane ring. R13Is an alkyl group, an aryl group, or R13And R11Or R13And R12And a dioxetane ring and a condensed ring containing a hetero atom may be formed together. R14Is a spacer. ).
[0011]
Furthermore, the present invention is a chemiluminescent reagent characterized by containing the aforementioned 1,2-dioxetane derivative. In addition, the present invention is an immunoassay reagent characterized in that the above-mentioned 1,2-dioxetane derivative is bound to a substance having specific binding properties through part of X or W thereof. Hereinafter, the present invention will be described in detail.
[0012]
In the present specification, the “alkyl group” refers to a linear or branched alkyl group having 1 to 20 carbon atoms which may have a substituent, such as methyl, ethyl, propyl, A linear group such as butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, icosanyl, or the above alkyl group is appropriately branched. Refers to the group. Examples of the substituent that the alkyl group may have include a hydroxyl group, an alkoxyl group, and an aryl group.
[0013]
In the present specification, the term “alkoxyl group” means, for example, methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, methoxyethoxy, methoxypropoxy, ethoxyethoxy, ethoxypropoxy, methoxyethoxyethoxy group, etc. And those having 1 to 5 alkoxyl groups bonded in a linear or branched manner. In the present specification, the “aryl group” means, for example, an aromatic hydrocarbon group having 6 to 20 carbon atoms such as phenyl or naphthyl group, or 1 to 5 rings in a ring such as furyl, thienyl or pyridyl group. Examples thereof include a heteroaryl group having a nitrogen atom, an oxygen atom or a sulfur atom.
[0014]
In the present specification, examples of the “acyl group” include formyl group, acetyl group, succinyl group, benzoyl group, 1-naphthoyl group, 2-naphthoyl group and the like. Further, in this specification, the “cyclic organic ring group” means C, such as cyclohexyl and cycloheptyl.Five~TenAnd the “polycyclic organic ring group” means C1~ CTenAlkyl, C1~ CTenAlkoxy, halogen and halo-C1~ CTenA polycyclic alkylene having 6 to 30 carbon atoms optionally substituted with 1 to 10 groups independently selected from alkyl. For example, an adamantyl group, bicyclo [2.2.1] heptyl, etc., and any carbon of the polycyclic organic ring group may be a halogen atom, alkyl group, aryl group, cyano group, amide group, alkoxy group or carboxyl. A group may be bonded.
[0015]
Further, in the present specification, “heterocycle” includes, for example, furan, thiophene, pyrrole, oxazole, isoxazole, thiazole, isothiazole, imidazole, pyrazole, furazane, pyran, pyridine, pyridazine, pyrimidine, pyrazine and the like. be able to. “Halogen atom” includes fluorine, chlorine, bromine and the like.
[0016]
X is a labelable substituent or ester for an organic compound or biological molecule. Among these, a labelable substituent for an organic compound or biological molecule is a carboxylic acid, a succinimideoxy substituent, an acid. Examples include chloride, amino group, maleimide group, succinimidoxycarbonyl group, etc.1~6Examples of the alkyl ester are as follows. RThreeAnd R14Is a spacer, for example — (CH2)n-Or-(CH2)nNH- and the like are exemplified (n is an integer from 1 to 20).
[0017]
In the general formula [III], R13And R11Or R13And R12And a dioxetane ring and a condensed ring containing a hetero atom together can be exemplified by a condensed ring of a dioxetane ring and a furan ring, or a condensed ring of a dioxetane ring and a pyran ring.
[0018]
Of these, in the general formula [I], the formula [II]
[0019]
[Chemical 7]
Figure 0004453256
(In the formula, Y is the same as Y in the formula [I], n is an integer of 1 to 20, W is a hydrogen atom, an alkyl group, or a succinimide substituent, and U is a hydrogen atom, an alkyl group. Group, an aryl group, a halogen atom, an alkoxyl group, a carboxyl group, a formyl group, an alkyl ester, an aryl ester, an alkyl ketone, an aryl ketone, or a heterocyclic ring). More preferably, U is a hydrogen atom, n is 1 to 15, W is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms such as an ethyl group, or succinimide, Y is an acyl group having 1 to 6 carbon atoms, or -Si ( RFourRFiveR6) [Especially RFour, RFive, R6Is a C1-C6 alkyl group].
[0020]
Within the general formula [III], the formula [IV]
[0021]
[Chemical 8]
Figure 0004453256
(In the formula, n is an integer from 1 to 20. W is a hydrogen atom, an alkyl group, or a succinimide substituent, and U is a hydrogen atom, an alkyl group, an aryl group, a halogen atom, an alkoxyl group, a carboxyl group, A 1,2-dioxetane derivative represented by a formyl group, an alkyl ester, an aryl ester, an alkyl ketone, an aryl ketone, or a heterocyclic ring. More preferably, U is a heterocycle, especially CFThreeIs an isoxazole ring optionally having a substituent such as n is 1 to 6, and W is a succinimide group, a hydrogen atom, or an alkyl group.
[0022]
Examples of the production method when the compound represented by the general formula [I] is a dihydrofuran derivative can include the following methods.
[0023]
[Chemical 9]
Figure 0004453256
(Wherein RThree, X and Y are R in the general formula [I]Three, X and Y are the same. R17~ R26Are each independently a hydrogen atom, an alkyl group or an aryl group. R27Is a halogen atom, a substituted sulfonyloxy group or a hydroxyl group. R28Is an alkyl group. )
(Step 1) In this step, the compound represented by the general formula (3) is produced by reacting the compound represented by the general formula (1) with the compound represented by the general formula (2). To do. The reaction can be achieved by the so-called Williamson synthesis familiar to those skilled in the art. Here, the substituent R of the compound represented by the general formula (1)27Is a halogen atom or a substituted sulfonyloxy group, it is directly subjected to the reaction, R27In the case where is a hydroxyl group, this step can be achieved by converting it into a sulfonyloxy group with a tosyl halide or the like in the reaction system and then subjecting it to a reaction.
[0024]
(Second step) In this step, the compound represented by the general formula (4) is produced by deprotecting the compound represented by the general formula (3). The deprotection reaction in this step can be performed by using an acid. As the acid, hydrochloric acid or the like can be used. At this time, an ether such as THF can be used as the solvent.
[0025]
(Third Step) In this step, the compound represented by the general formula (5) is produced by protecting one of the alcoholic hydroxyl groups of the compound represented by the general formula (4). . The protection reaction in this step can be performed by using 3,4-dihydro-2H-pyran. At this time, a halogenated hydrocarbon such as dichloromethane can be used as the solvent. Furthermore, by using PPTS (pyridinium p-toluenesulfonate) as a catalyst, the target product can be obtained efficiently.
[0026]
(Step 4) In this step, the compound represented by the general formula (6) is produced by oxidizing the compound represented by the general formula (5). The oxidation in this step can be performed by using a chromium-based oxidant or an activator. As the chromium-based oxidizing agent, pyridinium chlorochromate (PCC), pyridinium dichlorochromate (PDC) or the like can be used. At this time, a halogenated hydrocarbon such as dichloromethane can be used as the solvent. When the activator is used, Py · SOThree/ Triethylamine / DMSO, Ac2The reaction can be performed in combination with a solvent such as an O / DMSO system.
[0027]
(Step 5) In this step, the compound represented by the general formula (6) is cyclized to produce the compound represented by the general formula (7). The reaction is carried out using a lithium salt of a secondary amine such as lithium diisopropylpyramide or a base such as t-butoxy potassium. As the solvent, an organic solvent such as THF or DMSO can be used, and the reaction is preferably performed at 0 ° C. to room temperature for 1 to 5 hours.
[0028]
(Sixth step) In this step, the compound represented by the general formula (8) is produced by deprotecting the compound represented by the general formula (7). The deprotection reaction in this step can be performed by using an acid. As the acid, hydrochloric acid or the like can be used. At this time, an alcohol such as methanol can be used as the solvent.
[0029]
(Step 7) In this step, the compound represented by the general formula (8) is converted to RThreeThe compound represented by the general formula (9) is produced by reacting with a compound having an X substituent. The reaction can be achieved by so-called Williamson synthesis, which is well known to those skilled in the art.
[0030]
(Eighth step) In this step, the compound represented by the general formula (10) is produced by dehydrating the compound represented by the general formula (9). In the reaction, thionyl chloride is allowed to act in the presence of a base such as pyridine, or an acid such as phosphoric acid or p-toluenesulfonic acid can be used as a catalyst. As the solvent, a halogenated hydrocarbon such as dichloromethane or an aromatic hydrocarbon such as toluene can be used, and it can be appropriately selected depending on the reagent to be acted on.
[0031]
(Ninth step) In this step, the compound represented by the general formula (11) is produced by deprotecting the compound represented by the general formula (10). In the case of a compound represented by a methoxy group or a benzyloxy group, this reaction can be carried out by a method familiar to those skilled in the art, that is, by reacting an anion of alkylthiol or subjecting it to a hydrogenation reaction. Whether to select this reaction may be appropriately selected depending on the group to be deprotected.
[0032]
(Tenth Step) In this step, the compound represented by the general formula (11) is introduced into the phenolic hydroxyl group of the compound represented by the general formula (11) by deprotection in the presence of fluorine ions or under alkaline conditions. The compound represented by (12) is produced. Alkyl esters, aryl esters and -OSi (RFourRFiveR6) (However, RFour, RFiveAnd R6Are independently an alkyl group and an aryl group. The compound represented by the general formula (12) is produced by reacting the corresponding acid anhydride or halogenated silane compound for the formation of the group represented by
[0033]
(Eleventh step) In this step, the compound represented by the general formula (12) is reacted with singlet oxygen to produce a 1,2-dioxetane derivative represented by the general formula (13). The reaction with singlet oxygen is achieved by irradiation with visible light in an oxygen atmosphere in the presence of a photosensitizer such as methylene blue, rose bengal, tetraphenylporphine (TPP). At this time, the solvent may be a halogenated hydrocarbon such as dichloromethane, dichloroethane, or carbon tetrachloride, or an alcohol such as methanol or ethanol. The reaction is preferably performed at −80 ° C. to room temperature.
[0034]
The compound represented by the general formula [III] according to the present invention can be produced, for example, by reacting an acid anhydride with a compound obtained by the method described in JP-A-2002-338576.
[0035]
The 1,2-dioxetane derivative represented by the general formula [I] or the general formula [III] of the present invention decomposes into a carbonyl compound with chemiluminescence in the presence of a fluorine ion or in an alkaline condition. Therefore, these can be used as chemiluminescent reagents, and can be used for, for example, immunoassay, chemical assay, nucleotide probe method and the like.
[0036]
In particular, an immunoassay is carried out by binding a 1,2-dioxetane derivative represented by the general formula [I] or [III] of the present invention to a substance having specific binding properties through a part of X or W thereof. It can be used as a reagent. As an immunoassay method using this immunoassay reagent, for example, the immunoassay reagent of the present invention and a sample containing a detection substance are mixed and reacted for a certain period of time to specifically bind to the detection substance in the sample. It can be carried out by a step of binding a substance and a step of determining the amount of a substance having specific binding property that is bound or not bound. The step of determining the amount of the substance having a specific binding property that is bound or not bound is the portion corresponding to the 1,2-dioxetane derivative constituting the immunoassay reagent of the present invention in the presence of fluoride ions. Or since it decomposes | disassembles with chemiluminescence on alkaline conditions, it can carry out by measuring the emitted light intensity. The emission intensity at this time increases in proportion to the amount of the portion corresponding to the 1,2-dioxetane derivative.
[0037]
Examples of the detection substance in the immunoassay include hormones such as hCG, TSH, and LH, cancer-related substances such as AFP and CEA, virus antigens such as HIV and HTLV-I, and antibodies and nucleic acids (DNA, RNA) thereof. Can be mentioned. Further, the substance having specific binding property constituting the immunoassay reagent of the present invention is a substance having specific binding property to the detection substance, and examples thereof include antibodies, receptors and the like.
[0038]
【Example】
Hereinafter, the present invention will be described in detail by way of examples. However, the present invention is not limited only to these examples.
[0039]
Example 1
[0040]
[Chemical Formula 10]
Figure 0004453256
Dimethyl 1,3-acetonedicarboxylate dissolved in DMF (25 mL) in a DMF (100 mL) solution in which potassium carbonate (73.2 g, 529.6 mmol, 3 eq.) Was suspended at 0 ° C. under a nitrogen atmosphere. The ester (compound [1]) (30.9 g, 177.4 mmol) was added dropwise over 12 minutes, and then methyl iodide (33 mL, 530.1 mmol, 3 eq.) Dissolved in DMF (20 mL) was added over 40 minutes. It was dripped. The reaction solution was gradually warmed to room temperature, stirred, DMF (40 mL + 50 mL) was added, and the mixture was stirred overnight. The reaction solution was poured into water and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to obtain the desired 1,3-dimethyl-2-oxo-1,3-propanedicarboxylic acid dimethyl ester (compound [2]) as a yellow oil (39.1 g). It was. This was subjected to the next reaction without purification.
[0041]
(Example 2)
[0042]
Embedded image
Figure 0004453256
In a nitrogen atmosphere at 0 ° C., 60% sodium hydride (17.9 g, 447.0 mmol, 2.6 eq.) Suspended in THF (100 mL) solution in THF (50 mL) 1,3 -A crude product (39.1 g) of dimethyl-2-oxo-1,3-propanedicarboxylic acid dimethyl ester (compound [2]) was added dropwise over 45 minutes and stirred for 30 minutes. Subsequently, methyl iodide (33 mL, 530.1 mmol, 3 eq.) Dissolved in THF (50 mL) was added dropwise over 50 minutes, the temperature was gradually returned to room temperature, and the mixture was stirred overnight. The reaction solution was poured into water and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with a saturated aqueous sodium thiosulfate solution and saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give the desired 1,1,3,3-tetramethyl-2-oxo-1,3-propanedicarboxylic acid dimethyl ester (compound [3]) as a yellow oil (42 0.9 g). This was subjected to the next reaction without purification.
[0043]
(Example 3)
[0044]
Embedded image
Figure 0004453256
1, 1 dissolved in THF (50 mL) in a THF (150 mL) solution in which lithium aluminum hydride (10.2 g, 268.2 mmol, 1.5 eq.) Was suspended at 0 ° C. under a nitrogen atmosphere. A crude product (42.9 g) of 3,3-tetramethyl-2-oxo-1,3-propanedicarboxylic acid dimethyl ester (compound [3]) was added dropwise, gradually warmed to room temperature and stirred overnight. The reaction solution was quenched by adding water (10 mL) dissolved in THF (10 mL). The reaction solution was poured into 6N aqueous hydrochloric acid and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow solid (28.7 g). The residue was rinsed with hexane, and the desired 2,2,4,4-tetramethylpentane-1,3,5-triol (compound [4]) yellow solid (19.2 g, 109.2 mmol, 61.6) %) And a filtrate concentrate (8.98 g). The filtrate concentrate was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 3). As a result, a yellow solid (2.14 g, 12.13 mmol, 6.8%) was further obtained (total yield of compound [4] 68.4%).
[0045]
Colorless needle crystal (mp. 61.1-61.5 ° C)
1H-NMR (400 MHz, CDClThree):
δH  1.00 (s, 6H), 1.09 (s, 6H), 2.95 (br, 2H), 3.47 (d, J = 10, 6 Hz, 2H), 3.52 (d, J = 10.6 Hz, 2H), 3.64 (s, 12), 4.25 (br, 1H) ppm
13C-NMR (125 MHz, CDClThree):
δC  20.3, 24.7, 40.3, 75.4, 85.7 ppm
IR (KBr):
3354, 2954, 2878, 1028cm-1
MASS (EI, 70 ev, m / z,%):
176 (M+, Trace), 128 (8), 103 (38), 97 (35), 85 (24), 73 (36), 58 (2), 54 (100).
[0046]
Example 4
[0047]
Embedded image
Figure 0004453256
To a dichloromethane (200 mL) solution in which 2,2,4,4-tetramethylpentane-1,3,5-triol (compound [4]) (24.7 g, 139.9 mmol) was stirred at room temperature, acetone was added. Dimethyl acetal (18 mL, 146.4 mmol, 1.1 eq.) Was added, and then pyridinium p-toluenesulfonate (3.62 g, 13.99 mmol, 0.1 eq.) Was added and stirred overnight. The reaction solution was poured into a saturated aqueous sodium hydrogen carbonate solution and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (31.2 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 4). As a result, the desired 2-methyl-2- (2,2,5,5-tetramethyl- [1,3] dioxan-4-yl) -propan-1-ol (compound [5]) was obtained as a colorless oil. (27.3 g, 126.3 mmol, 90.3%).
1H-NMR (400 MHz, CDClThree):
δH  0.89 (s, 3H), 1.02 (s, 3H), 1.02 (s, 3H), 1.21 (s, 3H), 1.42 (s, 3H), 1.42 (s 3H), 3.01 (d, J = 5.2 Hz, 1H), 3.11 (d, J = 11.5 Hz, 1H), 3.33 (dd, J = 10.7 and 5.2 Hz, 1H) , 3.54 (d, J = 11.5 Hz, 1H), 3.54 (dd, J = 10.7 and 5.2 Hz, 1H), 3.59 (s, 1H) ppm
13C-NMR (100 MHz, CDClThree):
δC  18.7, 20.3, 21.2, 24.1, 24.5, 29.0, 35.4, 40.2, 73.0, 74.4, 83.2, 98.5 ppm
IR (liquid film):
2994, 2858, 1601, 1462, 1264, 1044cm-1.
[0048]
(Example 5)
[0049]
Embedded image
Figure 0004453256
2-methyl-2- (2,2,5,5) was added to a THF (30 mL) solution in which 60% sodium hydride (968 mg, 24.00 mmol, 1.09 eq.) Was suspended at 0 ° C. in a nitrogen atmosphere. A solution of 5-tetramethyl- [1,3] dioxan-4-yl) -propan-1-ol (compound [5]) (4.76 g, 21.98 mmol) in THF (20 mL) was added over 15 minutes. Then, 3-methoxybenzyl chloride (3.3 mL, 22.73 mmol, 1.03 eq.) Was added, then DMF (5 mL) was added, the temperature was gradually returned to room temperature, heated to 50 ° C., and stirred for 2 hours. Water was poured into the reaction solution, and extraction was performed with a saturated aqueous ammonium chloride solution and ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (7.67 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 10). As a result, the desired 4- [2- (3-methoxybenzyloxy) -1,1-dimethylethyl] -2,2,5,5-tetramethyl- [1,3] dioxane (compound [6]) was obtained. Obtained as a colorless oil (6.62 g, 19.68 mmol, 89.6%).
[0050]
1H-NMR (400 MHz, CDClThree):
δH  0.88 (s, 3H), 0.95 (s, 3H), 1.05 (s, 3H), 1.14 (s, 3H), 1.34 (s, 3H), 1.37 (s , 3H), 3.01 (d, J = 8.6 Hz, 1H), 3.08 (d, J = 11.5 Hz, 1H), 3.37 (d, J = 8.6 Hz, 1H), 3 .51 (d, J = 11.5 Hz, 1H), 3.65 (s, 1H), 3.81 (s, 3H), 4.42 (d, J = 12.9 Hz, 1H), 4.47 (D, J = 12.9 Hz, 1H), 6.82 (d with fine coupling, J = 8.1 Hz, 1H), 6.90-6.91 (m, 2H), 7.25 (t, J = 8.1 Hz, 1 H) ppm
13C-NMR (100 MHz, CDClThree):
δC  19.1, 21.0, 21.9, 23.4, 24.3, 35.4, 40.5, 55.1, 72.9, 74.7, 78.5, 98.4, 112. 7, 119.5, 129.1, 140.5, 159.5 ppm.
[0051]
IR (liquid film):
3441, 2990, 2954, 2873, 1164, 1010, 938 cm-lMASS (EI, 70 ev, m / z,%):
336 (M+8), 321 (6), 278 (9), 222 (55), 194 (5), 137 (36), 121 (100), 97 (12), 58 (55).
[0052]
(Example 6)
[0053]
Embedded image
Figure 0004453256
At room temperature, 4- [2- (3-methoxybenzyloxy) -1,1-dimethylethyl] -2,2,5,5-tetramethyl- [1,3] dioxane (compound [6]) (15 3N hydrochloric acid solution (15 mL) was added to a THF (120 mL) solution in which 6 g, 46.34 mmol) was stirred, and the mixture was refluxed at 80 ° C. for 6 hours and 40 minutes. The reaction solution was poured into a saturated aqueous sodium hydrogen carbonate solution and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (14.2 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 7). As a result, the desired 5- (3-methoxybenzyloxy) -2,2,4,4-tetramethylpentane-1,3-diol (compound [7]) was obtained as a colorless oil (11.5 g, 38.68 mmol). 83.5%).
1H-NMR (400 MHz, CDClThree):
δH  0.98 (s, 3H), 1.02 (s, 3H), 1.06 (s, 3H), 1.11 (s, 3H), 3.33 (s, 2H), 3.33-3 .59 (m, 4H), 3.82 (s, 3H), 4.26 (br-s, 1H), 4.49 (s, 2H), 6.84-6.89 (m, 3H), 7.25-7.29 (m, 1H) ppm13C-NMR (125 MHz, CDClThree):
δC  20.1, 21.1, 24.7, 25.0, 40.4, 40.4, 55.1, 73.6, 75.4, 83.0, 85.3, 112.9, 113. 3,120.0, 129.5, 139.0, 159.7 ppm
IR (liquid film):
3415, 2957, 1600, 1266, 1155, 1079, 782 cm-1MASS (EI, 70 ev, m / z,%):
296 (M +, 19), 222 (8), 138 (94), 121 (100), 109 (8), 73 (10).
[0054]
(Example 7)
[0055]
Embedded image
Figure 0004453256
At room temperature, 5- (3-methoxybenzyloxy) -2,2,4,4-tetramethylpentane-1,3-diol (compound [7]) (1.87 g, 6.326 mmol) was allowed to stir. 3,4-Dihydro-2H-pyran (0.7 mL, 7.672 mmol, 1.21 eq.) Was added to a dichloromethane (20 mL) solution, and pyridinium p-toluenesulfonate (81.0 mg, 0.3223 mmol, 0. 1). 05 eq.) Was added and stirred overnight. The reaction solution was poured into a saturated aqueous sodium hydrogen carbonate solution and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (2.53 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 5). As a result, the desired 1- (3-methoxybenzyloxy) -2,2,4,4-tetramethyl-5- (tetrahydropyran-2-yloxy) pentan-3-ol (compound [8]) was obtained as a colorless oil. Obtained as a product (1.74 g, 4.564 mmol, 72.2%).
1H-NMR (400 MHz, CDClThree):
δH  1.02 (s, 1.5H), 1.04 (s, 1.5H), 1.04 (s, 1.5H), 1.05 (s, 1.5H), 1.06 (s, 1.5H), 1.09 (s, 1.5H), 1.10 (s, 1.5H), 1.11 (s, 1.5H), 1.53-1.82 (m, 6H) 3.14-3.70 (m, 9H) 3.81 (s, 3H), 3.81-3.86 (m, 1H), 4.48-4.58 (m, 3H), 6. 81 (d with fine coupling, J = 7.8 Hz, 1H), 6.90 (m, 2H), 7.25 (t, J = 7.8 Hz, 1H) ppm
13C-NMR (125 MHz, CDClThree):
δC  19.3, 19.6, 21.6, 21.9, 21.9, 22.0, 24.4, 24.7, 24.9, 25.0, 25.3, 25.4, 30. 5, 30.6, 40.4, 40.5, 40.8, 55.1, 61.9, 62.4, 73.1, 77.7, 78.2, 80.4, 80.5, 80.6, 81.1, 99.0, 99.3, 112.7, 112.9, 113.0, 119.6, 129.3, 129.3, 140.1, 140.2, 169. 6ppm
MASS (EI, 70 ev, m / z,%):
380 (M+3), 295 (29), 222 (13), 138 (60), 121 (100), 85 (97).
[0056]
(Example 8)
[0057]
Embedded image
Figure 0004453256
At room temperature, a solution of pyridinium chlorochromate (1.31 g, 6.063 mmol, 1.58 eq.) And celite (3.50 g) in dichloromethane (15 mL) in pyridine (0.46 mL, 6.335 mmol, 1 .65 eq.) And 1- (3-methoxybenzyloxy) -2,2,4,4-tetramethyl-5- (tetrahydropyran-2-yloxy) pentan-3-ol (compound [8]) ( Dichloromethane (5 mL) in which 1.46 g, 3.837 mmol) was dissolved was added dropwise over 5 minutes and stirred for 4 days. 2-Propanol (4 mL) was added to the reaction solution, and the mixture was stirred for 30 minutes. Diethyl ether (100 mL) was added and the mixture was stirred for 30 minutes, filtered through celite, and the filtrate was concentrated. ). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 7). As a result, the desired 1- (3-methoxybenzyloxy) -2,2,4,4-tetramethyl-5- (tetrahydropyran-2-yloxy) pentan-3-one (compound [9]) was obtained as a colorless oil. This was obtained as a product (1.17 g, 3.099 mmol, 80.8%).
1H-NMR (400 MHz, CDClThree):
δH  1.23 (s, 3H), 1.28 (s, 3H), 1.28 (s, 3H), 1.32 (s, 3H), 1.46-1.70 (m, 6H), 3 .46-3.83 (m, 6H), 3.80 (s, 3H), 4.47 (s, 2H), 4.55 (t, J = 3.2 Hz, 1H), 6.80 (d with fine coupling, J = 8.1 Hz, 1H), 6.86 (s, 1H), 6.87 (d, J = 8.1 Hz, 1H), 7.23 (t, J = 8.1 Hz, 1H) ) Ppm
13C-NMR (100 MHz, CDClThree):
δC  19.3, 23.3, 23.5, 23.6, 23.7, 25.5, 30.5, 50.1, 50.3, 55.1, 61.8, 63.0, 73. 0, 76.0, 78.3, 98.9, 112.5, 112.9, 119.5, 129.1, 140.1, 159.5, 215.9 ppm
IR (liquid film):
3441, 2990, 2954, 2873, 1164, 1010, 938 cm-1MASS (E1, 70ev, m / z,%):
378 (M+3), 322 (4), 293 (21), 237 (2), 157 (16), 138 (11), 121 (91), 85 (100).
[0058]
Example 9
[0059]
Embedded image
Figure 0004453256
To a THF (40 mL) solution in which diisopropylamine (6.5 mL, 46.38 mmol, 2.5 eq.) Was dissolved at room temperature under a nitrogen atmosphere, an n-butyllithium hexane solution (1.61 M solution, 28 mL, 46 0.08 mmol, 2.4 eq.) Was added and stirred for 35 minutes. The reaction solution was cooled to −78 ° C. and 1- (3-methoxybenzyloxy) -2,2,4,4-tetramethyl-5- (tetrahydropyran-2-yloxy) pentan-3-one (compound [ 9]) (7.00 g, 18.50 mmol) dissolved in THF (30 mL) solution was added dropwise over 30 minutes and stirred for 2 hours and 40 minutes. Water was added to the reaction solution for quenching, and then the reaction solution was poured into a saturated aqueous ammonium chloride solution and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (7.56 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 4). As a result, the desired 3-hydroxy-2- (3-methoxybenzyloxy) -4,4-dimethyl-3- [1,1-dimethyl-2- (tetrahydropyran-2-yloxy) ethyl] tetrahydrofuran (compound [ 10]) colorless oil 10a (1.98 g, 5.230 mmol, 28.3%), 10a + 10b (2.06 g, 5.436 mmol, 29.4%), 10b (2.59 g, 6.850 mmol, 37 0.0%) and the total (6.63 g, 17.62 mmol, 94.7%).
[0060]
Embedded image
Figure 0004453256
10a
1H-NMR (400 MHz, CDClThree):
δH  1.03 (s, 3H), 1.29 (s, 3H), 1.35 (s, 3H), 1.57 (s, 3H), 1.54-1.79 (m, 6H), 2 .70 (d, J = 10.0 Hz, 1H), 3.45-3.48 (m, 1H), 3.76-3.80 (m, 2H), 3.80 (s, 3H), 3 .87 (d, J = 8.1 Hz, 1H), 4.13 (m, 1H), 4.88 (br, 1H), 5.14 (s, 1H), 6.80 (d with fine coupling), J = 8.1 Hz, 1H), 7.11 (s, 1H), 7.12 (d, J = 8.1 Hz, 1H), 7.20 (t, J = 8.1 Hz, 1H) ppm.
13C-NMR (100 MHz, CDClThree):
δC  19.0, 25.3, 25.4, 30.3, 41.5, 47.9, 55.2, 62.0, 78.4, 80.0, 88.0, 90.7, 98. 7, 112.7, 113.6, 120.3, 128.5, 142.0, 159.1 ppm
IR (liquid film):
3455, 2940, 2874, 1722, 1603, 1487, 1390, 1281, 1037, 784 cm-1
MASS (EI, 70 ev, m / z,%):
378 (M+2), 276 (21), 157 (33), 136 (100), 126 (32), 107 (16), 85 (32), 55 (41).
[0061]
10b
1H-NMR (400 MHz, CDClThree):
δH  1.14 (s, 6H), 1.39 (s, 6H), 1.55-1.77 (m, 6H), 3.45-3.56 (m, 2H), 3.60 (d, J = 8.0 Hz, 1H), 3.81 (s, 3H), 3.78-3.80 (m, 2H), 3.90 (d, J = 8.0 Hz, 1H), 4.61 ( s with fine coupling, 1H), 5.00 (s, 1H), 6.80 (d with fine coupling, J = 7.3 Hz, 1H), 7.12-7.26 (m, 3H) ppm
IR (liquid film):
3474, 2934, 1602, 1487, 1389, 1259, 1036, 779 cm-1
MASS (EI, 70 ev, m / z,%):
378 (M+5), 276 (17), 157 (72), 136 (100), 126 (31), 107 (14), 85 (54), 55 (36).
[0062]
(Example 10)
[0063]
Embedded image
Figure 0004453256
At room temperature, 3-hydroxy-2- (3-methoxyphenyl) -4,4-dimethyl-3- [1,1-dimethyl-2- (tetrahydropyran-2-yloxy) ethyl] tetrahydrofuran (compound [10] ) (1.05 g, 2.774 mmol) dissolved in methanol (10 mL), 1N aqueous hydrochloric acid solution (1 drop) was added, and then 1N aqueous hydrochloric acid solution (1 drop) was added and stirred overnight. The reaction solution was poured into a saturated aqueous sodium hydrogen carbonate solution and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (827 mg). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 2). As a result, the desired 3- (2-hydroxy-1,1-dimethyl) -2- (3-methoxyphenyl) -4,4-dimethyltetrahydrofuran-3-ol (compound [11]) was obtained as a colorless oil (766 mg). , 2.602 mmol, 93.8%). 11 was subjected to the next reaction without purification of the isomer.
[0064]
Colorless granular crystals (mp. 102.0-102.2 ° C)
1H-NMR (400 MHz, CDClThree):
δH  0.79 (br-s, 3H), 1.01 (s, 3H), 1.25 (s, 3H), 1.37 (s, 3H), 2.17 (t, J = 5.0 Hz, 1H), 3.22 (dd, J = 10.9 and 5.0 Hz, 1H), 3.49-3, 51 (m, 1H), 3.70 (d, J = 8.1 Hz, 1H), 3. 81 (s, 3H), 3.89 (d, J = 8.1 Hz, 1H), 4.52 (br-s, 1H), 5.05 (s, 1H), 6.81 (d with fine coupling) , J = 8.0 Hz, 1H), 7.14 (s, 1H), 7.15 (d, J = 8.0 Hz, 1H), 7.22 (t, J = 8.0 Hz, 1H) ppm
IR (KBr):
3295, 2938, 2877, 1607, 1583, 1486, 1456, 1284, 1043, 779 cm-1
MASS (EI, 70 ev, m / z,%):
294 (M+20), 276 (33), 236 (45), 136 (100), 121 (32), 107 (23), 85 (43), 73 (12), 70 (29).
[0065]
(Example 11)
[0066]
Embedded image
Figure 0004453256
Under a nitrogen atmosphere at 0 ° C., a solution of 60% sodium hydride (1.29 g, 32.25 mmol, 1.6 eq.) In DMF (20 mL) was suspended in 3- (2-hydroxy-1,1 -Dimethyl) -2- (3-methoxyphenyl) -4,4-dimethyltetrahydrofuran-3-ol (compound [11]) (6.00 g, 20.38 mmol) dissolved in DMF (40 mL) over 20 minutes Then, 5-bromovaleric acid (5 mL, 31.33 mmol, 1.5 eq.) Was added and stirred for 5 hours 30 minutes. The reaction solution was poured into a saturated aqueous ammonium chloride solution and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (10.5 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 4). As a result, the desired 3- (7-ethoxycarbonyl-1,1-dimethyl-3-oxaheptyl) -3-hydroxy-2- (3-methoxyphenyl) -4,4-dimethyltetrahydrofuran (compound [12]) Colorless oil 12a (6.03 g, 14.26 mmol, 70.0%), 12a + 12b (1.68 g, 3.988 mmol, 19.6%), 12b (223 mg, 0.5285 mmol, 2.6%), Obtained as the sum (7.93 g, 18.77 mmol, 92.1%).
[0067]
Embedded image
Figure 0004453256
12a
1H-NMR (400 MHz, CDClThree):
δH  0.79 (br-s, 3H), 1.06 (s, 3H), 1.19 (s, 3H), 1.26 (t, J = 7.1 Hz, 3H), 1.35 (s, 3H), 1.58-1.71 (m, 4H), 2.32 (t, J = 7.1 Hz, 2H), 2.80 (d, J = 9.3 Hz, 1H), 3.18- 3.24 (br, 2H), 3.68 (d, J = 8.1 Hz, 1H), 3.80 (s, 3H), 3.87 (d, J = 8.1 Hz, 1H), 4. 13 (q, J = 7.1 Hz, 2H), 4.88 (br, 1H), 5.04 (s, 1H), 6.80 (d with fine coupling, J = 8.1 Hz, 1H), 7 .12 (s, 1H), 7.14 (d, J = 8.1 Hz, 1H), 7.21 (t, J = 8.1 Hz, 1H) ppm.
13C-NMR (125 MHz, CDClThree):
δC14.1, 21.6, 23.3, 25.3, 28.3, 33.7, 41.5, 47.7, 55.0, 60.1, 70.6, 80.0, 81. 7, 88.4, 92.3, 112.8, 114.0, 120.8, 128.4, 142.2, 159.0, 173.2 ppm
IR (liquid film):
3447, 2936, 2873, 1734, 1603, 1488, 1372, 1093, 784 cm-1
MASS (EI, 70 ev, m / z,%):
422 (M+8), 245 (100), 243 (53), 188 (9), 147 (13), 136 (57), 107 (18), 101 (41), 83 (26), 55 (22).
[0068]
12b
1H-NMR (400 MHz, CDClThree):
δH  1.01 (s, 3H), 1.16 (s, 3H), 1.21 (s, 3H), 1.25 (t, J = 7.2 Hz, 3H), 1.37 (s, 3H) , 1.32-1.37 (m, 2H), 1.49-1.52 (m, 2H), 2.23 (t, J = 7.5 Hz, 2H), 2.55 (dd, J = 13.5 and 6.5 Hz, 1 H), 2.82 (d, J = 9.3 Hz, 1 H), 2.94 (dt, J = 13.5 and 6.5 Hz, 1 H), 3.08 (d.J = 9 .3 Hz, 1H), 3.44 (d, J = 7.1 Hz, 1H), 3.81 (s, 3H), 4.12 (q, J = 7.1 Hz, 2H), 4.12 (d , J = 7.1 Hz, 1H), 6.83 (ddd, J = 7.8 and 2.7 and 1.3 Hz, 1 H), 7.10 (d with fine coupling, J 7.8Hz, 1H), 7.16 (dd, J = 2.7and1.3Hz, 1H), 7.21 (t, J = 7.8Hz, 1H) ppm.
13C-NMR (100 MHz, CDClThree):
δC  14.3, 21.6, 23.7, 26.9, 28.7, 33.9, 40.4, 48.4, 55.2, 60.2, 70.5, 81.0, 81. 7, 83.9, 86.4, 113.5, 115.5, 122.5, 128.3, 142.4, 159.0, 173.2 ppm
IR (liquid film):
3403, 2963, 2873, 1734, 1599, 1486, 1372, 1094, 778 cm-1
MASS (EI, 70 ev, m / z,%):
422 (M+21), 245 (24), 243 (21), 147 (28), 136 (92), 107 (17), 101 (64), 55 (27).
[0069]
Example 12
[0070]
Embedded image
Figure 0004453256
3- (7-ethoxycarbonyl-1,1-dimethyl-3-oxaheptyl) -3-hydroxy-2- (3-methoxyphenyl) -4,4-dimethyltetrahydrofuran (compound) at 0 ° C. under nitrogen atmosphere [12]) Pyridine (2.42 mL, 32.99 mmol, 10.0 eq.) Was added to a dichloromethane (14 mL) solution in which (1.39 g, 3.298 mmol) was dissolved, and thionyl chloride (0.3 mL, 4.298 mmol) was added. 113 mmol, 1.2 eq.) Was gradually added and the temperature was gradually returned to room temperature, followed by stirring for 7 hours and 35 minutes. The reaction solution was poured into a saturated aqueous sodium hydrogen carbonate solution and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (1.29 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 6). As a result, the desired 4- (7-ethoxycarbonyl-1,1-dimethyl-3-oxaheptyl) -5- (3-methoxyphenyl) -3,3-dimethyl-2,3-dihydrofuran (compound [13 ]) As a colorless oil (1.04 g, 2.560 mmol, 77.6%).
1H-NMR (400 MHz, CDClThree):
δH  1.04 (s, 6H), 1.25 (t, J = 7.1 Hz, 3H), 1.31 (s, 6H), 1.54-1.57 (m, 2H), 1.66 1.70 (m, 2H), 2.32 (t, J = 7.5 Hz, 2H), 3.10 (s, 1H), 3.25 (t, J = 6.2 Hz, 2H), 3. 80 (s, 3H), 3.87 (s, 2H), 3.80 (s, 3H), 3.87 (s, 2H), 4.12 (q, J = 7.1 Hz, 2H), 6 85-6.86 (m, 2H), 6.90 (dt, J = 7.4 and 1.2 Hz, 1H), 7.21-7.25 (m, 1H) ppm.
13C-NMR (100 MHz, CDClThree):
δC  14.3, 21.9, 27.3, 27.4, 29.1, 34.1, 37.0, 47.0, 55.2, 60.1, 70.4, 79.5, 83. 0, 113.9, 115.1, 122.3, 122.3, 128.7, 137.0, 151.0, 158.9, 173.5 ppm
IR (liquid film):
2956, 2866, 1735, 1596, 1465, 1370, 1048, 785 cm-1
MASS (EI, 70 ev, m / z,%):
404 (M+2), 258 (19), 245 (100), 243 (43), 135 (20), 55 (6).
[0071]
(Example 13)
[0072]
Embedded image
Figure 0004453256
In a DMF (4 mL) solution in which 60% sodium hydride (465 mg, 11.63 mmol, 4.2 eq.) Was suspended at 0 ° C. under a nitrogen atmosphere, .) Was added to room temperature, and then 4- (7-ethoxycarbonyl-1,1-dimethyl-3-oxaheptyl) -5- (3-methoxyphenyl) -3,3-dimethyl-2,3- A DMF (7 mL) solution in which dihydrofuran (compound [13]) (1.13 g, 2.791 mmol) was dissolved was added dropwise over 5 minutes and refluxed for 11 hours. The reaction solution was poured into a saturated aqueous ammonium chloride solution and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (1.18 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 1). As a result, the desired 4- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -5- (3-hydroxyphenyl) -3,3-dimethyl-2,3-dihydrofuran (compound [14 ]) As a colorless oil (607 mg, 1.694 mmol, 60, 0%).
[0073]
1H-NMR (400 MHz, CDClThree):
δH  1.03 (s, 6H), 1.30 (s, 6H), 1.56-1.63 (m, 2H), 1.70-1.77 (m, 2H), 2.42 (t, J = 7.1 Hz, 2H), 3.10 (s, 2H), 3.26 (t, J = 5.9 Hz, 2H), 3.86 (s, 2H), 6.79 (d with fine coupling) , J = 2.6 Hz, 1H), 6.86 (s, 1H), 6.85 (d, J = 11.2 Hz, 1H), 7.17 (t, J = 7.8 Hz, 1H) ppm.
13C-NMR (100 MHz, CDClThree):
δC  21.9, 27.3, 27.5, 28.9, 33.7, 37.1, 47.0, 70.5, 79.5, 82.9, 115.3, 116.9, 122. 0, 122.0, 128.9, 136.9, 150.7, 155.2, 178.8 ppm
IR (liquid film):
3376, 2957, 2869, 1709, 1595, 1445, 1047, 787 cm-1
MASS (EI, 70 ev, m / z,%):
362 (M+3), 244 (22), 231 (100), 229 (46), 121 (37), 55 (10).
[0074]
(Example 14)
[0075]
Embedded image
Figure 0004453256
4- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -5- (3-hydroxyphenyl) -3,3-dimethyl-2,3-dihydrofuran (compound) at room temperature under nitrogen atmosphere [14]) To a dichloromethane (20 mL) solution in which (2.17 g, 6.000 mmol) was dissolved, triethylamine (3 mL, 21.55 mmol, 3.6 eq.) Was added, and the mixture was further brought to 0 ° C. and acetic anhydride (1 mL, (10.60 mmol, 1.8 eq.) Was added, and the mixture was returned to room temperature and stirred for 8 hours and 10 minutes. The reaction solution was poured into saturated brine and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (2.66 g). The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 4). As a result, the desired 5- (3-acetoxyphenyl) -4- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -3,3-dimethyl-2,3-dihydrofuran (compound [15] ) As a colorless oil (1.36 g, 3.335 mmol, 55.6%).
1H-NMR (400 MHz, CDClThree):
δH  1.05 (s, 6H), 1.30 (s, 6H), 1.54-1.61 (m, 2H), 1.67-1.74 (m, 2H), 2.28 (s, 3H), 2.38 (t, J = 7.3 Hz, 2H), 3.08 (s, 2H), 3.24 (t, J = 6.1 Hz, 2H), 3.86 (s, 2H) 7.05 (ddd, J = 7.8 and 2.4 and 1.2 Hz, 1 H), 7.08 (t, J = 1.2 Hz, 1 H), 7.19 (dt, J = 7.8 and 1.2 Hz, 1 H) ), 7.32 (t, J = 7.8 Hz, 1H) ppm.
[0076]
13C-NMR (125 MHz, CDClThree):
δC  21.1, 21.7, 27.3, 27.4, 28.9, 33.7, 37.0, 47.1, 70.3, 79.5, 83.1, 121.2, 123. 0, 123.2, 127.3, 128.7, 137.2, 150.0, 150.1, 169.2, 179.2 ppm
IR (liquid film):
2957, 2868, 1767, 1708, 1603, 1583, 1367, 1204, 785, 706 cm-1
MASS (EI, 70 ev, m / z,%):
404 (M+1), 273 (100), 271 (47), 229 (13), 163 (10), 121 (21).
[0077]
(Example 15)
[0078]
Embedded image
Figure 0004453256
In an oxygen atmosphere at 0 ° C., 5- (3-acetoxyphenyl) -4- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -3,3-dimethyl-2,3-dihydrofuran ( TPP (1.0 mg) was added to a dichloromethane solution in which compound [15]) (104 mg, 0.2666 mmol) was dissolved, and a 940 W sodium lamp was applied for 30 minutes, stirred and concentrated, and the residue was converted into a red oil (129 mg) Got as. The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 2). As a result, the desired 1- (3-acetoxyphenyl) -5- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -4,4-dimethyl-2,6,7-trioxabicyclo [ 3.2.0] Heptane (compound [16]) was obtained as a yellow oil (105 mg, 0.2412 mmol, 94.0%).
1H-NMR (400 MHz, CDClThree):
δH  0.87 (s, 3H), 1.14 (s, 3H), 1.15 (s, 3H), 1.38 (s, 3H), 1.54-1.58 (m, 2H), 1 .63-1.68 (m, 2H), 2.30 (s, 3H), 2.35 (t, J = 7.3 Hz, 2H), 3.24-3.32 (m, 4H), 3 .82 (d, J = 8.2 Hz, 1H), 4.58 (d, J = 8.2 Hz, 1H), 7.14 (d with fine coupling, J = 8.0 Hz, 1H), 7.36 (S with fine coupling, 1H), 7.41 (t, J = 8.0 Hz, 1H), 7.51 (d, J = 8.0 Hz, 1H), 9.79 (br, 1H) ppm.
13C-NMR (125 MHz, CDClThree):
δC  17.7, 20.6, 21.1, 21.5, 22.2, 24.8, 28.8, 33.6, 41.1, 45.6, 70.5, 75.9, 80. 3, 105.0, 116.4, 122.0, 122.7, 125.7, 128.9, 137.4, 150.3, 169.1, 179.5 ppm
IR (liquid film):
2956, 1767, 1709, 1487, 1370, 1206, 793, 700 cm-1
MASS (EI, 70 ev, m / z,%):
404 (M+, 1), 273 (18), 163 (91), 121 (54), 101 (100), 83 (30).
[0079]
(Example 16)
[0080]
Embedded image
Figure 0004453256
5- (3-acetoxyphenyl) -4- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -3,3-dimethyl-2,3-dihydrofuran (compound) at room temperature under nitrogen atmosphere [15]) To a THF (2.5 mL) solution in which (209 mg, 0.5167 mmol) is dissolved, ethanol (48 mg, 1.042 mmol, 2.0 eq.), Triphenylphosphine (275 mg, 1.048 mmol, 2. 0 eq.), Diethyl azodicarboxylate (185 mg, 1.062 mmol, 2.1 eq.) Dissolved in THF (0.5 mL) was further added, and the mixture was stirred for 20 minutes. The reaction solution was poured into 1N aqueous hydrochloric acid and saturated brine, and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated aqueous sodium hydrogen carbonate solution and saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to obtain a residue. The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 20). As a result, the desired 5- (3-acetoxyphenyl) -4- (7-ethoxycarbonyl-1,1-dimethyl-3-oxaheptyl) -3,3-dimethyl-2,3-dihydrofuran (compound [ 17]) was obtained as a colorless oil (172 mg, 0.3976 mmol, 77.0%).
[0081]
1H-NMR (400 MHz, CDClThree):
δH  1.04 (s, 6H), 1.25 (t, J = 7.1 Hz, 3H), 1.30 (s, 6H), 1.53-1.58 (m, 2H), 1.64 1.70 (m, 2H), 2.78 (s, 3H), 2.32 (t, J = 7.4 Hz, 2H), 3.07 (s, 2H), 3.23 (t, J = 6.4 Hz, 2H), 3.86 (s, 2H), 4.12 (q, J = 7.2 Hz, 2H), 7.05 (ddd, J = 7.9 and 2.5 and 1.2 Hz, 1 H), 7.08 (t, J = 1.2 Hz, 1H), 7.18 (td, J = 7.9 and 1.2 Hz, 1H), 7.32 (t, J = 7.9 Hz, 1H) ppm.
[0082]
13C-NMR (125 MHz, CDClThree):
δC  14.2, 21.0, 21.9, 27.2, 27.3, 29.0, 34.1, 37.0, 47.1, 60.1, 70.4, 79.4, 83. 0, 121.2, 123.0, 123.2, 127.2, 128.6, 137.2, 150.0, 169.0, 173.6 ppm
IR (liquid film):
2957, 2867, 1768, 1735, 1203cm-1
MASS (EI, 70 ev, m / z,%):
432 (M+1), 286 (33), 273 (100), 229 (14), 163 (5), 149 (37), 129 (8), 121 (14), 101 (8).
[0083]
(Example 17)
[0084]
Embedded image
Figure 0004453256
5- (3-acetoxyphenyl) -4- (7-ethoxycarbonyl-1,1-dimethyl-3-oxaheptyl) -3,3-dimethyl-2,3-dihydrofuran at 0 ° C. in an oxygen atmosphere (Compound [17]) (76 mg, 0.1750 mmol) dissolved in dichloromethane (7 mL) solution was added TPP (0.8 mg), 940 W sodium lamp was applied for 45 minutes, stirred and concentrated. Obtained as a thing. The residue was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 10). As a result, the desired 1- (3-acetoxyphenyl) -5- (7-ethoxycarbonyl-1,1-dimethyl-3-oxaheptyl) -4,4-dimethyl-2,6,7-trioxabicyclo [ 3.2.0] Heptane (compound [18]) was obtained as a yellow oil (78 mg, 0.1679 mmol, 95.9%).
1H-NMR (400 MHz, CDClThree):
δH  0.86 (s, 3H), 1.15 (s, 3H), 1.16 (s, 3H), 1.25 (t, J = 7.1 Hz, 3H), 1.38 (s, 3H) , 1.52-1.55 (m, 2H), 1.61-1.66 (m, 2H), 2.29 (t, J = 7.7 Hz, 2H), 2.30 (s, 3H) 3.25 (dd, J = 9.3 and 7.7 Hz, 2H), 3.29 (t, J = 6.2 Hz, 2H), 3.82 (d, J = 8.2 Hz, 1H), 4. 12 (q, J = 7.1 Hz, 2H), 4.58 (d, J = 8.2 Hz, 1H), 7.14 (d with fine coupling, J = 8.0 Hz, 1H), 7.37 ( s with fine coupling, 1H), 7.41 (t, J = 8.0 Hz, 1H), 7.51 (d, J = 8.0 Hz, 1H) ppm
[0085]
13C-NMR (125 MHz, CDClThree):
δC  14.2, 21.1, 21.8, 22.3, 28.9, 34.0, 41.1, 45.6, 60.2, 70.6, 75.9, 80.3, 105. 0, 116.4, 121.9, 122.7, 125.7, 128.9, 137.5, 150.4, 169.1, 173.6 ppm
IR (liquid film):
2979, 1767, 1733, 1487, 1370, 1205, 701 cm-1MASS (EI, 70 ev, m / z,%):
432 (M+, Trace), 319 (15), 263 (35), 229 (20), 163 (91), 154 (trace), 149 (10), 129 (100), 121 (33), 101 (36).
[0086]
(Example 18)
[0087]
Embedded image
Figure 0004453256
3-Hydroxy-3- (2) dissolved in anhydrous DMF (4 mL) in a solution of sodium hydride (60% oily, 412 mg, 10.3 mmol) suspended in anhydrous DMF (7 mL) at 0 ° C. in a nitrogen stream. -Hydroxy-1,1-dimethylethyl) -2- (3-methoxyphenyl) -4,4-dimethyltetrahydrofuran (compound [11]) (1.51 g, 5.13 mmol) was added dropwise at 0 ° C. for 30 minutes. And stirred for 20 minutes at room temperature. To this solution was added ethyl 11-iodoundecanoate (3.51 g, 10.3 mmol) dissolved in anhydrous DMF (3 mL) at 0 ° C., and the mixture was stirred for 4 hours and then overnight at room temperature. The reaction mixture was poured into a saturated aqueous ammonium chloride solution and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The concentrate was applied to a silica gel column and washed with a mixed solvent of hexane and ethyl acetate (4: 1) to give 3- (13-ethoxycarbonyl-1,1-dimethyl-3-oxatridecan-1-yl) -2. -(3-Methoxyphenyl) -4,4-dimethyltetrahydrofuran (compound [19]) was obtained as a colorless oil in a yield of 2.52 g, 97.0%.
1H-NMR (400 Hz, CDClThree)
δH  0.78 (s, 3H), 1.01 (s, 3H), 1.20-1.45 (m, 21H), 1.57-1.67 (m, 2H), 1.77-1. 87 (m, 2H), 2.29 (t, J = 7.6 Hz, 2H), 3.19 (t, J = 7.1 Hz, 2H), 3.42-3.65 (m, 1H), 3.70 (d, J = 8.1 Hz, 1H), 3.81 (s, 3H), 3.89 (d, J = 8.1 Hz, 1H), 4.12 (q, J = 7.2 Hz) , 2H), 4.50-4.70 (m, 1H), 5.04 (s, 1H), 6.81 (d with fine coupling, J = 7.8 Hz, 1H), 7.12-7. 17 (m, 2H), 7.22 (t, J = 7.8 Hz, 1H) ppm.
[0088]
(Example 19)
[0089]
Embedded image
Figure 0004453256
3- (13-Ethoxycarbonyl-1,1-dimethyl-3-oxatridecan-1-yl) -2- (3-methoxyphenyl) -4,4-dimethyltetrahydrofuran (compound [19]) (1.21 g , 2.39 mmol) and pyridine (2.0 mL, 24.7 mmol) dissolved in anhydrous dichloromethane (12 mL) in a nitrogen stream and stirred at 0 ° C., thionyl chloride (0.25 mL, 3.43 mmol) was added. The mixture was stirred for 5 minutes and then stirred at room temperature for 1 hour. The reaction mixture was poured into an aqueous sodium hydrogen carbonate solution and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The concentrate was applied to a silica gel column and washed with a mixed solvent of hexane and ethyl acetate (10: 1) to give 4- (13-ethoxycarbonyl-1,1-dimethyl-3-oxatridecan-1-yl) -5. -(3-Methoxyphenyl) -3,3-dimethyl-2,3-dihydrofuran (compound [20]) was obtained as a colorless oil in a yield of 1.06 g, 90.8%.
1H-NMR (400 Hz, CDClThree)
δH  1.04 (s, 6H), 1.23-1.34 (m, 21H), 1.46-1.55 (m, 2H) 1.57-1.65 (m, 2H), 2.28 (T, J = 7.6 Hz, 2H) 3.11 (s, 2H), 3.24 (t, J = 6.6 Hz, 2H), 3.80 (s, 3H), 3.87 (s, 2H), 4.12 (q, J = 7.1 Hz, 2H), 6.83-6.88 (m, 2H), 6.91 (d with fine coupling, J = 7.5 Hz, 1H), 7 .22 (t with fine coupling, J = 7.5 Hz, 1 H) ppm.
[0090]
(Example 20)
[0091]
Embedded image
Figure 0004453256
To a solution of sodium hydride (60% oily, 704 mg, 17.6 mmol) suspended in anhydrous DMF (30 mL) at 0 ° C. in a nitrogen stream, ethanethiol (1.5 mL, 20.3 mmol) was added dropwise at room temperature. For a few minutes. This solution was added to 4- (13-ethoxycarbonyl-1,1-dimethyl-3-oxatridecan-1-yl) -5- (3-methoxyphenyl) -3,3-dimethyl-2,3- In addition to dihydrofuran (compound [20]), the mixture was stirred with heating at 140 ° C. for 20 minutes and then at 150 ° C. for 1 hour. The reaction mixture was poured into dilute hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The concentrate was applied to a silica gel column and washed with a mixed solvent of hexane and ethyl acetate (2: 1) to give 4- (13-carboxy-1,1-dimethyl-3-oxatridecan-1-yl) -5- (3-Hydroxyphenyl) -3,3-dimethyl-2,3-dihydrofuran (compound [21]) was obtained as a colorless oil in a yield of 1.579 g, 94.2%.
1H-NMR (400 Hz, CDClThree)
δH  1.04 (s, 6H), 1.20-1.40 (m, 18H), 1.46-1.55 (m, 2H), 1.58-1.68 (m, 2H), 2. 35 (t, J = 7.4 Hz, 2H), 3.12 (s, 2H), 3.25 (t, J = 6.6 Hz, 2H), 3.86 (s, 2H), 6.76 ( d with fine coupling, J = 8.0 Hz, 1H), 6.79 (s with fine coupling, 1H), 6.88 (d, 1H), 7.17 (dd, J = 8.0 and 7.6 Hz, 1H) ) Ppm.
[0092]
(Example 21)
[0093]
Embedded image
Figure 0004453256
4- (13-carboxy-1,1-dimethyl-3-oxatridecan-1-yl) -5- (3-hydroxyphenyl) -3,3-dimethyl-2,3-dihydrofuran (compound [21] ) (1.57 g, 3.52 mmol) and triethylamine (2.5 mL, 17.9 mmol) in anhydrous dichloromethane (15 mL) and stirred at 0 ° C. under a nitrogen atmosphere to acetic anhydride (0.50 mL, 5 .30 mmol) was added and stirred for 1.5 hours. The reaction mixture was poured into dilute hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The concentrate was applied to a silica gel column and washed with a mixed solvent of hexane and ethyl acetate (2: 1) to give 5- (3-acetoxyphenyl) -4- (13-carboxy-1,1-dimethyl-3-oxatri). 1.353 g of decan-1-yl) -3,3-dimethyl-2,3-dihydrofuran anhydride was obtained as a colorless oil with a yield of 80.2%. Subsequently, 5- (3-acetoxyphenyl) -4- (13-carboxy-1,1-dimethyl-3-oxatridecan-1-yl) -3,3-dimethyl-2,3-dihydrofuran (compound [ 22]) was obtained in 126 mg, with a yield of 7.3%.
1H-NMR (400 Hz, CDClThree)
δH  1.03 (s, 6H), 1.20-1.37 (m, 18H), 1.46-1.55 (m, 2H), 1.57-1.67 (m, 2H), 2. 27 (s, 3H), 2.34 (t, J = 7.5 Hz, 2H), 3.09 (s, 2H), 3.23 (t, J = 6.5 Hz, 2H), 3.86 ( s, 2H), 7.05 (ddd, J = 8.1 and 2.4 and 1.1 Hz, 1H), 7.09 (s with fine coupling, 1H), 7.20 (d with fine coupling), J = 7.7 Hz , 1H), 7.31 (dd, J = 8.1 and 7.7 Hz, 1H) ppm.
[0094]
(Example 22)
[0095]
Embedded image
Figure 0004453256
5- (3-acetoxyphenyl) -4- (13-carboxy-1,1-dimethyl-3-oxatridecan-1-yl) -3,3-dimethyl-2,3-dihydrofuran (compound [22] ) (125 mg, 0.256 mmol) and TPP (1 mg) were added to dichloromethane (12 mL) and irradiated with visible light with an 940 W sodium lamp in an oxygen atmosphere at 0 ° C. for 30 minutes. The reaction mixture was concentrated, applied to a silica gel column, and flushed with a mixed solvent of hexane and ethyl acetate (10: 1 to 5: 1). 1- (3-acetoxyphenyl) -5- (13-carboxy-1,1 -Dimethyl-3-oxatridecan-1-yl) -4,4-dimethyl-2,6,7-trioxabicyclo [3.2.0] heptane (compound [23]) 133 mg, 97.6% Was obtained.
[0096]
1H-NMR (400 Hz, CDClThree)
δH  0.86 (s, 3H), 1.15 (s, 3H), 1.16 (s, 3H), 1.20-1.40 (m, 12H), 1.39 (s, 3H), 1 .43-1.52 (m, 2H), 1.58-1.67 (m, 2H), 2.30 (s, 3H), 2.35 (t, J = 7.5 Hz, 2H), 3 .23 (s, 2H), 3.27 (t with fine coupling, J = 6.6 Hz, 2H) 3.82 (d, J = 8.1 Hz, 1H), 4.58 (d, J = 8. 1 Hz, 1 H), 7.14 (ddd, J = 8.1 and 2.3 and 1.1 Hz, 1 H), 7.37 (s with fine coupling, 1 H), 7.40 (dd, J = 8.1 and 7.9 Hz, 1H), 7.51 (d, J = 7.9 Hz, 1H) ppm.
[0097]
(Example 23)
[0098]
Embedded image
Figure 0004453256
Ethanol (34 mg, 0.74 mmol), triphenylphosphine (204 mg, 0.78 mmol) and 5- (3-acetoxyphenyl) -4- (13-carboxy-1,1-dimethyl-3-oxatridecan-1- Yl) -3,3-dimethyl-2,3-dihydrofuran (compound [22]) (126 mg, 0.258 mmol) was dissolved in anhydrous THF (1.0 mL) at room temperature in a nitrogen stream and stirred. Diethyl azodicarboxylate (135 mg, 0.77 mmol) dissolved in anhydrous THF (0.5 mL) was added and stirred for 20 minutes. After completion of the reaction, the reaction mixture was poured into dilute hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The concentrate was applied to a silica gel column and washed with a mixed solvent of hexane and ethyl acetate (20: 1 to 10: 1) to give 5- (3-acetoxyphenyl) -4- (13-ethoxycarbonyl-1,1-dimethyl). -3-Oxatridecan-1-yl) -3,3-dimethyl-2,3-dihydrofuran (compound [24]) was obtained as a colorless oil in a yield of 111 mg, 83.3%.
1H-NMR (500 Hz, CDClThree)
δH  1.03 (s, 6H), 1.23-1.34 (m, 21H), 1.47-1.54 (m, 2H), 1.57-1.65 (m, 2H), 2. 28 (s, 3H), 2.28 (t, J = 7.6 Hz, 2H), 3.08 (s, 2H), 3.22 (t, J = 6.5 Hz, 2H), 3.86 ( s, 2H), 4.12 (q, J = 7.1 Hz, 1H), 7.05 (ddd, J = 8.0 and 2.4 and 1.0 Hz, 1 H), 7.09 (s with fine coupling, 1H) , 7.20 (d with fine coupling, J = 7.6 Hz, 1H), 7.32 (dd, J = 8.0 and 7.6 Hz, 1H) ppm.
[0099]
(Example 24)
[0100]
Embedded image
Figure 0004453256
5- (3-acetoxyphenyl) -4- (13-ethoxycarbonyl-1,1-dimethyl-3-oxatridecan-1-yl) -3,3-dimethyl2,3-dihydrofuran (compound [24] ) (57.8 mg, 0.112 mmol) and TPP (0.6 mg) were added to dichloromethane (6 mL) and irradiated with visible light with a 940 W sodium lamp at 0 ° C. for 30 minutes in an oxygen atmosphere. The reaction mixture was concentrated, applied to a silica gel column, and washed with a mixed solvent of hexane and ethyl acetate (10: 1 to 5: 1) to give 1- (3-acetoxyphenyl) -5- (13-ethoxycarbonyl-1, 1-dimethyl-3-oxatridecan-1-yl) -4,4-dimethyl-2,6,7-trioxabicyclo [3.2.0] heptane (compound [25]) 46 mg, yield 75 Obtained as a colorless oil at 0.0%.
1H-NMR (400 Hz, CDClThree)
δH  0.86 (s, 3H), 1.15 (s, 3H), 1.16 (s, 3H), 1.22-1.38 (m, 15H), 1.39 (s, 3H), 1 .44-1.52 (m, 2H), 1.57-1.65 (m, 2H), 2.28 (t, J = 7.6 Hz, 2H), 2.30 (s, 3H), 3 .23 (s, 2H), 3.26 (t with fine coupling, J = 6.6 Hz, 2H), 3.82 (d, J = 8.1 Hz, 1H), 4.12 (q, J = 7 .2 Hz, 2 H), 4.58 (d, J = 8.1 Hz, 1 H), 7.14 (d with fine coupling, J = 7.6 Hz, 1 H), 7.37 (s with fine coupling, 1 H) , 7.41 (dd, J = 8.0 and 7.8 Hz, 1H), 7.52 (d, J = 7.8H , 1H) ppm.
[0101]
(Example 25)
[0102]
Embedded image
Figure 0004453256
4- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -5- (3-hydroxyphenyl) -3,3-dimethyl-2,3-dihydrofuran (at 0 ° C. under nitrogen atmosphere) Imidazole (282 mg, 4.142 mmol, 3.0 eq.) Is added to a DMF (10 mL) solution in which compound [14]) (500 mg, 1.379 mmol) is dissolved, and t-butyldimethylchlorosilane (624 mg, 4. eq.) Is further added. 140 mmol, 3.0 eq.) Was added and the temperature was returned to room temperature and stirred for 2 hours. The reaction solution was poured into saturated brine and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil (806 mg). The residue was dissolved in methanol (15 mL) and cooled to 0 ° C. To this was added dropwise water (5 mL) in which potassium carbonate (380 mg, 2.749 mmol) was dissolved, and the mixture was stirred for 30 minutes. The reaction solution was poured into saturated brine and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate, combined with the previous organic layer, and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated to give a residue as a yellow oil. It was subjected to silica gel column chromatography and flushed with a developing solvent (ethyl acetate: hexane = 1: 1). As a result, the desired 4- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -5- (3-tert-butyldimethylsiloxyphenyl) -3,3-dimethyl-2,3-dihydrofuran ( Compound [26]) was obtained as a colorless oil (475 mg, 0.997 mmol, 72.3%).
1H-NMR (500 MHz, CDClThree):
δH  0.18 (s, 6H), 0.98 (s, 9H), 1.04 (s, 6H), 1.31 (s, 6H), 1.56-1.62 (m, 2H), 1 .67-1.76 (m, 2H), 2.38 (t, J = 7.0 Hz, 2H), 3.10 (s, 2H), 3.25 (t, J = 6.5 Hz, 2H) 3.87 (s, 2H), 6.77-6.80 (m, 2H), 6.90 (dd, J = 8.0 and 1.5 Hz, 1H), 7.15-7.19 (m, 1H) ppm.
[0103]
(Example 26)
[0104]
Embedded image
Figure 0004453256
5- (3-t-butyldimethylsiloxyphenyl) -4- (7-carboxy-1,1-dimethyl-3-oxaheptyl) -3,3-dimethyl-2,3-dihydrofuran (compound [26]) To a solution of (394 mg, 0.827 mmol) dissolved in anhydrous acetonitrile (5 mL) at room temperature under a nitrogen atmosphere, di (N-succinimidyl) carbonate (318 mg, 1.241 mmol) and 1 drop of triethylamine were added and stirred for 50 minutes. The reaction solution was concentrated, and the concentrate was applied to a silica gel column and poured out with a mixed solvent of hexane and ethyl acetate (1: 1) to give 5- (3-t-butyldimethylsiloxyphenyl) -3,3-dimethyl-4. -(1,1-dimethyl-7-succinimidoxycarbonyl-3-oxaheptyl) -2,3-dihydrofuran (compound [27]) was obtained as a colorless oil in a mass of 433 mg, yield 91.2%. It was.
1H-NMR (500 MHz, CDClThree):
δH  0.18 (s, 6H), 0.98 (s, 9H), 1.04 (s, 6H), 1.31 (s, 6H), 1.61-1.67 (m, 2H), 1 .81 (quintet, J = 7.5 Hz, 2H), 2.64 (t, J = 7.5 Hz, 2H), 2.84 (br-d, J = 6.5 Hz, 4H), 3.10 ( s, 2H), 3.26 (t, J = 6.0 Hz, 2H), 3.86 (s, 2H), 6.77-6.80 (m, 2H), 6.90 (dd, J = 9.0 and 1.5 Hz, 1 H), 7.17 (t, J = 8.0 Hz, 1 H) ppm.
[0105]
(Example 27)
[0106]
Embedded image
Figure 0004453256
5- (3-t-butyldimethylsiloxyphenyl) -3,3-dimethyl-4- (1,1-dimethyl-7-succinimidoxycarbonyl-3-oxaheptyl) -2,3-dihydrofuran (compound [27]) (313 mg, 0.545 mmol) and TPP (2.5 mg) were added to dichloromethane (15 mL), and irradiated with visible light with a 940 W sodium lamp in an oxygen atmosphere at 0 ° C. for 1 hour. The reaction mixture was concentrated, applied to a silica gel column, and washed with a mixed solvent of hexane and ethyl acetate (1: 1) to give 1- (3-tert-butyldimethylsiloxyphenyl) -4,4-dimethyl-5- (1 , 1-dimethyl-7-succinimidoxycarbonyl-3-oxaheptyl) -2,6,7-trioxabicyclo [3.2.0] heptane (compound [28]) 276 mg, 83.6% Was obtained.
1H-NMR (500 MHz, CDClThree):
δH  0.19 (s, 6H), 0.86 (s, 3H), 0.98 (s, 9H), 1.14 (s, 3H), 1.17 (s, 3H), 1.38 (s , 3H), 1.60-1.66 (m, 2H), 1.78 (quintet, J = 8.0 Hz, 2H), 2.62 (t, J = 7.0 Hz, 2H), 2.84 (Br-d, J = 6.0 Hz, 4H), 3.24 (d, J = 9.0 Hz, 1H), 3.30-3.35 (m, 3H), 3.81 (d, J = 8.5 Hz, 1H), 4.57 (d, J = 8.5 Hz, 1H), 6.85-6.88 (m, 1H), 7.11 (s, 1H), 7.20-7. 27 (m, 2H) ppm.
[0107]
(Example 28)
[0108]
Embedded image
Figure 0004453256
4- (13-carboxy-1,1-dimethyl-3-oxatridecan-1-yl) -5- (3-hydroxyphenyl) -3,3-dimethyl-2,3-dihydrofuran (compound [21] ) (553 mg, 1.24 mmol) dissolved in anhydrous DMF (6 mL) at room temperature under nitrogen atmosphere, imidazole (257 mg, 3.77 mmol) and t-butyldimethylsilane chloride (566 mg, 3.76 mmol) were added. Stir for 1.5 hours. The reaction mixture was poured into a saturated aqueous ammonium chloride solution and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The concentrate was applied to a silica gel column and washed with a mixed solvent of hexane and ethyl acetate (2: 1) to give 5- (3-tert-butyldimethylsiloxyphenyl) -4- (13-carboxy-1,1-dimethyl- 3-Oxatridecan-1-yl) -3,3-dimethyl-2,3-dihydrofuran (compound [29]) was obtained as a colorless oil in 607 mg at a yield of 87.4%.
[0109]
1H-NMR (400 Hz, CDClThree)
δH  0.18 (s, 6H), 0.98 (s, 9H), 1.03 (s, 6H), 1.27-1.30 (m, 18H), 1.47-1.52 (m, 2H), 1.63 (quintet, J = 7.2 Hz, 2H), 2.34 (t, J = 7.6 Hz, 2H), 3.10 (s, 2H), 3.24 (t, J = 6.8 Hz, 2H), 3.86 (s, 2H), 6.76-6.79 (m, 2H), 6.90 (d with fine coupling, J = 7.6 Hz, 1H), 7.16. (T with fine coupling, J = 7.2 Hz, 1H) ppm.
[0110]
(Example 29)
[0111]
Embedded image
Figure 0004453256
5- (3-t-butyldimethylsiloxyphenyl) -4- (13-carboxy-1,1-dimethyl-3-oxatridecan-1-yl) -3,3-dimethyl-2,3-dihydrofuran ( To a solution of compound [29]) (405 mg, 0.722 mmol) dissolved in anhydrous acetonitrile (5 mL) at room temperature under a nitrogen atmosphere, di (N-succinimidyl) carbonate (237 mg, 0.925 mmol) and 1 drop of triethylamine were added. Stir for 50 minutes. The reaction solution was concentrated, and the concentrate was applied to a silica gel column and poured out with a mixed solvent of hexane and ethyl acetate (2: 1). When 5- (3-t-butyldimethylsiloxyphenyl) -3,3-dimethyl-4 was poured out. -(1,1-dimethyl-13-succinimidoxycarbonyl-3-oxatridecan-1-yl) -2,3-dihydrofuran (compound [30]) was 431 mg, yield 90.5%, colorless Obtained as an oil.
[0112]
1H-NMR (400 Hz, CDClThree)
δH  0.18 (s, 6H), 0.98 (s, 9H), 1.03 (s, 6H), 1.28-1.31 (m, 18H), 1.49-1.54 (m, 2H), 1.74 (quintet, J = 7.6 Hz, 2H), 2.59 (t, J = 7.6 Hz, 2H), 2.82 (s, 4H), 3.11 (s, 2H) 3.24 (t, J = 6.8 Hz, 2H), 3.86 (s, 2H), 6.76-6.79 (m, 2H), 6.90 (d, J = 7.6 Hz, 1H), 7.16 (t with fine coupling, J = 7.2 Hz, 1H) ppm.
[0113]
(Example 30)
[0114]
Embedded image
Figure 0004453256
5- (3-t-butyldimethylsiloxyphenyl) -3,3-dimethyl-4- (1,1-dimethyl-13-succinimidoxycarbonyl-3-oxatridecan-1-yl) -2,3 -Dihydrofuran (compound [30]) (177 mg, 0.269 mmol) and TPP (0.8 mg) were added to dichloromethane (15 mL), and irradiated with visible light with a 940 W sodium lamp in an oxygen atmosphere at 0 ° C for 1.5 hours. did. The reaction mixture was concentrated, applied to a silica gel column, and washed with a mixed solvent of hexane and ethyl acetate (2: 1) to give 1- (3-t-butyldimethylsiloxyphenyl) -4,4-dimethyl-5- (1 , 1-Dimethyl-13-succinimidoxycarbonyl-3-oxatridecan-1-yl) -2,6,7-trioxabicyclo [3.2.0] heptane (compound [31]) is 181 mg. 97.5%.
1H-NMR (400 Hz, CDClThree)
δH  0.19 (s, 6H), 0.87 (s, 3H), 0.98 (s, 9H), 1.14 (s, 3H), 1.16 (s, 3H), 1.26-1 .40 (m, 12H), 1.38 (s, 3H), 1.46-1.50 (m, 2H), 1.74 (quintet, J = 7.6 Hz, 2H), 2.60 (t , J = 7.6 Hz, 2H), 2.82 (s, 4H), 3.22-3.29 (m, 4H), 3.80 (d, J = 8.4 Hz, 1H), 4.57 (D, J = 8.0 Hz, 1H), 6.84-6.87 (m, 1H), 7.11 (s, 1H), 7.12-7.25 (m, 2H) ppm.
[0115]
(Example 31)
[0116]
Embedded image
Figure 0004453256
1- (3-t-butyldimethylsiloxyphenyl) -4,4-dimethyl-5- (1,1-dimethyl-13-succinimidoxycarbonyl-3-oxatridecan-1-yl) -2,6 , 7-Trioxabicyclo [3.2.0] heptane (53.7 mg, 0.0778 mmol) (compound [31]) dissolved in anhydrous dichloromethane (1 mL) at 0 ° C. under nitrogen atmosphere Β-phenethylamine (11 mg, 0.0908 mmol) dissolved in dichloromethane (1 mL) was added and stirred for 1 hour and 20 minutes. Β-phenethylamine (5 mg, 0.0413 mmol) dissolved in anhydrous dichloromethane (0.5 mL) was further added to the reaction solution, and the mixture was stirred for 30 minutes. The reaction mixture was concentrated, applied to a silica gel column, and flushed with a mixed solvent of hexane and ethyl acetate (1: 1) to give 1- (3-tert-butyldimethylsiloxyphenyl) -4,4-dimethyl-5- [1. , 1-dimethyl-13- (2-phenylethylcarbamoyl) -3-oxatridecan-1-yl] -2,6,7-trioxabicyclo [3.2.0] heptane (compound [32]) 51.8 mg, 95.6%.
1H-NMR (400 Hz, CDClThree)
δH  0.19 (s, 6H), 0.86 (s, 3H), 0.98 (s, 9H), 1.14 (s, 3H), 1.16 (s, 3H), 1.24-1 .40 (m, 12H), 1.38 (s, 3H), 1.45-1.50 (m, 2H), 1.52-1.60 (m, 2H), 2.11 (t, J = 7.6 Hz, 2H), 2.81 (t, J = 6.8 Hz, 2H), 3.22-3.29 (m, 4H), 3.52 (q, J = 6.8 Hz, 2H) 3.80 (d, J = 8.4 Hz, 1H), 4.57 (d, J = 8.0 Hz, 1H), 6.84-6.87 (m, 1H), 7.11 (s, 1H), 7.18-7.33 (m, 7H) ppm.
[0117]
(Example 32)
[0118]
Embedded image
Figure 0004453256
5- (3-Acetoxyphenyl) -4- (13-carboxy-1,1-dimethyl-3-oxatridecan-1-yl) -3,3-dimethyl-2,3-dihydrofuran (192 mg, 0. 393 mmol) (compound [22]) dissolved in anhydrous acetonitrile (3 mL) at room temperature under a nitrogen atmosphere, di (N-succinimidyl) carbonate (125 mg, 0.488 mmol) and 1 drop of triethylamine were added for 1.5 hours. Stir. The reaction solution was concentrated, and the concentrate was applied to a silica gel column and poured out with a mixed solvent of hexane and ethyl acetate (2: 1). When 5- (3-acetoxyphenyl) -3,3-dimethyl-4- (1, 191 mg of 1-dimethyl-13-succinimidoxycarbonyl-3-oxatridecan-1-yl) -2,3-dihydrofuran (compound [33]) was obtained as a colorless oil in a yield of 83.0%. It was.
1H-NMR (400 Hz, CDClThree)
δH  1.03 (s, 6H), 1.26-1.42 (m, 18H), 1.47-1.52 (m, 2H), 1.73 (quintet, J = 7.6 Hz, 2H), 2.27 (s, 3H), 2.59 (t, J = 7.6 Hz, 2H), 2.80 (s, 4H), 3.08 (s, 2H), 3.23 (t, J = 6.8 Hz, 2H), 3.85 (s, 2H), 7.03-7.09 (m, 2H), 7.19 (d with fine coupling, J = 7.6 Hz, 1H), 7.31. (T, J = 7.6 Hz, 1H) ppm.
[0119]
(Example 33)
[0120]
Embedded image
Figure 0004453256
5- (3-acetoxyphenyl) -3,3-dimethyl-4- (1,1-dimethyl-13-succinimidoxycarbonyl-3-oxatridecan-1-yl) -2,3-dihydrofuran ( Compound [33]) (100 mg, 0.171 mmol) and TPP (0.8 mg) were added to dichloromethane (10 mL), and irradiated with visible light with a 940 W sodium lamp in an oxygen atmosphere at 0 ° C. for 1 hour. The reaction mixture was concentrated, applied to a silica gel column, and poured out with a mixed solvent of hexane and ethyl acetate (3: 2) to give 1- (3-acetoxyphenyl) -4,4-dimethyl-5- (1,1-dimethyl) -13-succiniimidoxycarbonyl-3-oxatridecan-1-yl) -2,6,7-trioxabicyclo [3.2.0] heptane (compound [34]) 87 mg, 82.5% Was obtained.
1H-NMR (400 Hz, CDClThree)
δH  0.86 (s, 3H), 1.15 (s, 3H), 1.16 (s, 3H), 1.24-1.40 (m, 12H), 1.39 (s, 3H), 1 .46-1.50 (m, 2H), 1.74 (quintet, J = 7.6 Hz, 2H), 2.30 (s, 3H), 2.60 (t, J = 7.6 Hz, 2H) , 2.83 (s, 4H), 3.23 (s, 2H), 3.27 (t with fine coupling, J = 6.8 Hz, 2H), 3.81 (d, J = 8.0 Hz, 1H) ), 4.58 (d, J = 8.0 Hz, 1H), 7.12-7.15 (m, 1H), 7.37 (s, 1H), 7.40 (t, J = 7.6 Hz) , 1H), 7.51 (d, J = 7.2 Hz, 1H) ppm.
[0121]
(Example 34)
[0122]
Embedded image
Figure 0004453256
Known compound 5- (3-t-butyl-4,4-dimethyl-4,5-dihydrofuran-2-yl) -2- (5-trifluoromethylisoxazole-) described in JP-A-2002-338576 To a solution of 3-yl) phenol (compound [35]) (500 mg, 1.31 mmol) dissolved in pyridine (100 mL) at room temperature, DMAP (20 mg) and glutaric anhydride (1.496 g, 13.11 mmol) were added. Stir for 2 hours at 100 ° C. The reaction mixture was poured into 1N aqueous hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The concentrate was applied to a silica gel column and poured out with a mixed solvent of hexane and ethyl acetate (1: 1) to give 5- (3-t-butyl-4,4-dimethyl-4,5-dihydrofuran-2-yl). 2- (5-trifluoromethylisoxazol-3-yl) phenylglutarate (compound [36]) was obtained as a white solid in 510 mg, yield 78.5%.
1H-NMR (500 Hz, CDClThree)
δH  1.07 (s, 9H), 1.34 (s, 6H), 2.11 (quintet, J = 7.0 Hz, 2H), 2.57 (t, J = 7.5 Hz, 2H), 2. 79 (t, J = 7.5 Hz, 2H), 3.89 (s, 2H), 7.16 (d, J = 1.0 Hz, 1H), 7.34 (dd, J = 8.3 and 1.5 Hz) , 1H), 7.55 (d, J = 1.0 Hz, 1H), 8.10 (d, J = 7.5 Hz, 1H) ppm.
[0123]
(Example 35)
[0124]
Embedded image
Figure 0004453256
5- (3-t-butyl-4,4-dimethyl-4,5-dihydrofuran-2-yl) -2- (5-trifluoromethylisoxazol-3-yl) phenyl glutarate (compound [36] ) (510 mg, 1.03 mmol) in DMF (10 mL) at 0 ° C., N-hydroxysuccinimide (179 mg, 1.55 mmol) and 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (302 mg, 1.57 mmol) was added and stirred at 4 ° C. overnight. The reaction mixture was poured into saturated brine and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The concentrate was applied to a silica gel column and poured out with a mixed solvent of hexane and ethyl acetate (1: 1) to give 5- (3-t-butyl-4,4-dimethyl-4,5-dihydrofuran-2-yl). There was obtained 515 mg of 2- (5-trifluoromethylisoxazol-3-yl) phenylsuccinimidyl glutarate (Compound [37]) as a white solid in a yield of 84.4%.
1H-NMR (500 Hz, CDClThree)
δH  1.07 (s, 9H), 1.34 (s, 6H), 2.21 (quintet, J = 7.0 Hz, 2H), 2.83-2.87 (m, 8H), 3.89 ( s, 2H), 7.17 (d, J = 1.0 Hz, 1H), 7.34 (dd, J = 8.3 and 1.5 Hz, 1H), 7.63 (d, J = 1.0 Hz, 1H) ), 8.10 (d, J = 8.5 Hz, 1 H) ppm.
[0125]
(Example 36)
[0126]
Embedded image
Figure 0004453256
5- (3-t-butyl-4,4-dimethyl-4,5-dihydrofuran-2-yl) -2- (5-trifluoromethylisoxazol-3-yl) phenylsuccinimidyl glutarate ( Compound [37]) (505 mg, 0.85 mmol) and TPP (15 mg) were added to dichloromethane (15 mL), and irradiated with visible light with a 940 W sodium lamp in an oxygen atmosphere at 0 ° C. for 2 hours. The reaction mixture was concentrated, applied to a silica gel column, and poured out with a mixed solvent of hexane and ethyl acetate (1: 1) to give 5- (5-t-butyl-4,4-dimethyl-2,6,7-trioxa 445 mg of bicyclo [3.2.0] hept-1-yl) -2- (5-trifluoromethylisoxazol-3-yl) phenylsuccinimidyl glutarate (compound [38]), yield 83. Obtained as a white solid at 6%.1H-NMR (500 Hz, CDClThree)
δH  1.00 (s, 9H), 1.17 (s, 3H), 1.39 (s, 3H), 2.22 (quintet, J = 7.0 Hz, 2H), 2.83-2.89 ( m, 8H), 3.87 (d, J = 8.0 Hz, 1H), 4.60 (d, J = 8.0 Hz, 1H), 7.49 (s, 1H), 7.65 (dd, J = 1.5 Hz, 1H), 7.68 (d, J = 9.5 Hz, 1H), 8.17 (d, J = 8.0 Hz, 1H) ppm.
[0127]
(Example 37)
Thyroid-stimulating hormone antibody (TSH antibody) was placed in a dialysis tube and dialyzed at 2-8 ° C. against 0.1 M phosphate buffer (pH 7.0). Dialysis was performed for 4 hours or more using 1 L of buffer solution at a time. After completion of dialysis, the antibody solution was taken into a syringe equipped with a 0.45 μm filter and filtered. The volume at this time was 0.45 mL, and the concentration was 17.7 mg / mL. A 0.1 M phosphate buffer (pH 7.0) was added so that the protein concentration of this antibody solution was 5 mg / mL. This solution was transferred to a reaction vessel and immersed in a thermostat controlled at 4 ± 1 ° C. for 30 minutes. To this was added 5- (5-t-butyl-4,4-dimethyl-2,6,7-trioxabicyclo [3.2.0] hept-1-yl) -2- (5-trifluoromethylisoxazole). 0.015 mL of a DMF solution (concentration: 10.4 mg / mL) of -3-yl) phenylsuccinimidyl glutarate (compound [38]) was added. After completion of the dropping, the mixture was gently stirred using a vortex, and then the stirring was stopped. The mixture was left in a constant temperature bath at 4 ± 1 ° C. for 17 hours. After completion of the reaction, the reaction solution was transferred to a dialysis tube and 0.1 M phosphate / NaCl buffer solution (0.1% NaN).Three) (PH 7.0) was dialyzed at 2-8 ° C. Dialysis was performed 3 times over 4 hours using 1 L or more of buffer solution at a time. After completion of dialysis, the antibody solution was taken into a syringe equipped with a 0.22 μm filter and filtered. As a result, 0.88 mL of chemiluminescent substrate-labeled thyroid stimulating hormone antibody was obtained, and its concentration was 7599 mA.
[0128]
(Example 38)
The chemiluminescent substrate-labeled thyroid stimulating hormone antibody prepared in Example 37 was treated with 20 mM assess (0.1% BSA, 0.1% NaN).Three) The solution was diluted with a buffer solution (pH 6.5) to a concentration of 100 mA. 200 μL of 0.5N sodium hydroxide aqueous solution was added to 33 μL of this solution as a trigger, and luminescence measurement was performed using a luminescence measuring device. The obtained emission curve is shown in FIG.
[0129]
【The invention's effect】
The 1,2-dioxetane derivatives [I] and [III] of the present invention are easy to handle because the compounds themselves are stable.
[0130]
The 1,2-dioxetane derivatives [I] and [III] of the present invention can be labeled on organic compounds and biological molecules via a part of the group such as X or W in the structure. Therefore, the immunoassay reagent of the present invention can be obtained by binding a substance having specific binding properties. By using the immunoassay reagent of the present invention, it is possible to reduce the background during measurement such as immunoassay. This effect enables highly sensitive measurement such as further immunoassay.
[0131]
Further, in the 1,2-dioxetane derivative [I], Z is —OSi (R7R8)-(However, R7And R8Are independently an alkyl group or an aryl group. ) Or-(R9RTen) SiO- (however, R9And RTenAre independently an alkyl group or an aryl group. ) And 1,2-dioxetane derivative [III], the immunoassay reagent of the present invention is obtained from them, and an immune reaction product is formed on the solid phase using the reagent. When doing so, the following effects are obtained. That is, the portion corresponding to the 1,2-dioxetane derivative in the immune reaction product formed on the solid phase is decomposed in the presence of fluorine ions or in an alkaline condition. The portion having the dioxetane structure is cleaved from the immune reaction product on the solid phase and decomposed in such a way that it is released into the solution, and at the same time, luminescence occurs. Therefore, luminescence occurs in the solution, not on the solid phase. For this reason, detection of light emission is easy, noise is low, and highly sensitive measurement is possible. In addition, since light emission on the solid phase is not detected, there is no possibility of variations in detection depending on the shape of the solid phase. Thus, it becomes suitable for detecting all the light emission in the liquid phase (uniform system).
[Brief description of the drawings]
1 is a graph showing an emission curve obtained in Example 38. FIG.

Claims (4)

一般式[III]
Figure 0004453256
で表される1,2−ジオキセタン誘導体(式中、Arは置換基を有していてもよい炭素数1〜20個の直鎖状若しくは分枝鎖状のアルキル基、炭素数6〜20個の芳香族炭化水素基、環内に1〜5個の窒素原子、酸素原子若しくは硫黄原子を有するへテロアリール基、ハロゲン原子、アルコキシル基、カルボキシル基、ホルミル基、アルキルエステル、アリールエステル、アルキルケトン、アリールケトン複素環が結合していてもよい炭素数6〜20個の芳香族炭化水素基、又は複素環が結合していてもよい環内に1〜5個の窒素原子、酸素原子若しくは硫黄原子を有するへテロアリール基であり、Xはカルボン酸、スクシンイミドオキシ置換基、酸クロライド、アミノ基、マレイミド基、スクシニイミドキシカルボニル基又はエステルである。Vはカルボニル基又は−Si(R1516)−(ただし、R15及びR16は互いに独立に置換基を有していてもよい炭素数1〜20個の直鎖状若しくは分枝鎖状のアルキル基、炭素数6〜20個の芳香族炭化水素基、又は環内に1〜5個の窒素原子、酸素原子若しくは硫黄原子を有するへテロアリール基である。)で表される基であり、R11は水素原子、置換基を有していてもよい炭素数1〜20個の直鎖状若しくは分枝鎖状のアルキル基、炭素数6〜20個の芳香族炭化水素基、又は環内に1〜5個の窒素原子、酸素原子若しくは硫黄原子を有するへテロアリール基である。R13はR12と一体となってジオキセタン環とヘテロ原子を含む縮合環を形成する。また、R14は−(CH−又は−(CHNH−(ただし、nは1から20までの整数)である。)。
Formula [III]
Figure 0004453256
(Wherein Ar is a linear or branched alkyl group having 1 to 20 carbon atoms which may have a substituent, and 6 to 20 carbon atoms) aromatic hydrocarbon group having 1 to 5 nitrogen atoms in the ring, hetero aryl group to an oxygen atom or a sulfur atom, a halogen atom, an alkoxyl group, a carboxyl group, a formyl group, an alkyl ester, aryl ester, alkyl ketone , An aryl ketone , an aromatic hydrocarbon group having 6 to 20 carbon atoms to which a heterocyclic ring may be bonded, or 1 to 5 nitrogen atoms, oxygen atoms or a hetero aryl group to a sulfur atom, X is a carboxylic acid, succinimide-substituted group, acid chloride, amino group, a maleimide group, with succinyl imide alkoxycarbonyl group or an ester That .V is a carbonyl group or -Si (R 15 R 16) - ( provided that, R 15 and R 16 carbon atoms which may have an independent substituent mutually 1-20 linear or branched chain alkyl group, represented by the number 6-20 aromatic hydrocarbon group having a carbon or 1-5 nitrogen atoms in the ring, a hetero aryl group to an oxygen atom or sulfur atom.) R 11 is a hydrogen atom, an optionally substituted linear or branched alkyl group having 1 to 20 carbon atoms, or an aromatic hydrocarbon group having 6 to 20 carbon atoms. , or 1-5 nitrogen atoms in the ring, .R 13 is a hetero aryl group to having an oxygen atom or a sulfur atom to form a condensed ring containing the dioxetane ring and a hetero atom taken together with R 12. R 14 represents — (CH 2 ) n — or — (CH 2 ) n. NH- (where n is an integer from 1 to 20).).
請求項1に記載の1,2−ジオキセタン誘導体において、式[IV]
Figure 0004453256
で表される1,2−ジオキセタン誘導体(式中、nは1から20までの整数である。Wは水素原子、置換基を有していてもよい炭素数1〜20個の直鎖状若しくは分枝鎖状のアルキル基、又はスクシンイミド置換基であり、Uは水素原子、置換基を有してもよい炭素数1〜20個の直鎖状若しくは分枝鎖状のアルキル基、炭素数6〜20個の芳香族炭化水素基、環内に1〜5個の窒素原子、酸素原子若しくは硫黄原子を有するへテロアリール基、ハロゲン原子、アルコキシル基、カルボキシル基、ホルミル基、アルキルエステル、アリールエステル、アルキルケトン、アリールケトン又は複素環である。)。
The 1,2-dioxetane derivative according to claim 1, wherein the compound of formula [IV]
Figure 0004453256
(Wherein, n is an integer from 1 to 20. W is a hydrogen atom, a straight chain having 1 to 20 carbon atoms which may have a substituent, or A branched alkyl group or a succinimide substituent, U is a hydrogen atom, a linear or branched alkyl group having 1 to 20 carbon atoms which may have a substituent , and carbon number 6 20 one aromatic hydrocarbon group, 1-5 nitrogen atoms in the ring, hetero aryl group to an oxygen atom or a sulfur atom, a halogen atom, an alkoxyl group, a carboxyl group, a formyl group, an alkyl ester, aryl ester , Alkyl ketones, aryl ketones or heterocyclic rings).
請求項1乃至2のいずれか1項に記載の1,2−ジオキセタン誘導体を含有することを特徴とする化学発光試薬。A chemiluminescent reagent comprising the 1,2-dioxetane derivative according to any one of claims 1 to 2. 請求項1乃至2のいずれか1項に記載の1,2−ジオキセタン誘導体が、そのX又はWの一部を介して特異的結合性を有する物質と結合していることを特徴とする免疫測定試薬。An immunoassay, wherein the 1,2-dioxetane derivative according to any one of claims 1 to 2 is bound to a substance having specific binding properties through a part of X or W thereof. reagent.
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