JP5212973B2 - Glycolipid derivative synthesis intermediate and production method thereof, and glycolipid derivative and production method thereof - Google Patents

Glycolipid derivative synthesis intermediate and production method thereof, and glycolipid derivative and production method thereof Download PDF

Info

Publication number
JP5212973B2
JP5212973B2 JP2007532018A JP2007532018A JP5212973B2 JP 5212973 B2 JP5212973 B2 JP 5212973B2 JP 2007532018 A JP2007532018 A JP 2007532018A JP 2007532018 A JP2007532018 A JP 2007532018A JP 5212973 B2 JP5212973 B2 JP 5212973B2
Authority
JP
Japan
Prior art keywords
group
compound
protecting group
general formula
glycolipid derivative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2007532018A
Other languages
Japanese (ja)
Other versions
JPWO2007023583A1 (en
Inventor
芳弘 西田
高典 中村
佑子 新宮
和洋 松田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nagoya University NUC
Tokai National Higher Education and Research System NUC
Original Assignee
Nagoya University NUC
Tokai National Higher Education and Research System NUC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nagoya University NUC, Tokai National Higher Education and Research System NUC filed Critical Nagoya University NUC
Priority to JP2007532018A priority Critical patent/JP5212973B2/en
Publication of JPWO2007023583A1 publication Critical patent/JPWO2007023583A1/en
Application granted granted Critical
Publication of JP5212973B2 publication Critical patent/JP5212973B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H15/00Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
    • C07H15/02Acyclic radicals, not substituted by cyclic structures
    • C07H15/04Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
    • C07H15/06Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical being a hydroxyalkyl group esterified by a fatty acid
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biotechnology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Molecular Biology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

本発明は、新規な糖脂質誘導体及びその製造方法、並びにそれら糖脂質誘導体の合成過程において有益な糖脂質誘導体合成中間体及びその製造方法に関する。   The present invention relates to a novel glycolipid derivative and a production method thereof, a glycolipid derivative synthesis intermediate useful in the synthesis process of the glycolipid derivative, and a production method thereof.

慢性関節リウマチは、関節の痛み、腫れ、変形を伴う慢性の自己免疫疾患であり、人口の1%に及ぶ患者がいるとされている。しかし、原因は不明なため、病気の診断法や根本的な治療法はまだない。
近年、マイコプラズマファーメンタンスと慢性関節リウマチとの関連が報告されている。マイコプラズマファーメンタンスの膜脂質成分である下記化合物(以下、「GGPL-III」と称する)が重要な生理活性を担うものとして注目されている(特開平7−278174号公報、特開平7−278175号公報及び特開平8−48693号公報)。

Figure 0005212973
GGPL-IIIは本菌に特異的なマーカーとして機能し、慢性関節リウマチの診断に有用であることが判ってきた。リウマチの診断が可能になれば、早期における様々な治療が可能になり、病気の完治の可能性も向上する。
GGPL-IIIの合成方法は本願発明者の一人である西田らが他に先駆けて報告している(特開平7−304789号公報、Y.Nishida et al,Tetrahedron Letters 40, 1999,2371-2374)。
Rheumatoid arthritis is a chronic autoimmune disease with joint pain, swelling, and deformity, and is reported to have as many as 1% of the population. However, since the cause is unknown, there is still no diagnosis or fundamental cure for the disease.
In recent years, an association between mycoplasma fermentans and rheumatoid arthritis has been reported. The following compound (hereinafter referred to as “GGPL-III”), which is a membrane lipid component of Mycoplasma fermentans, has attracted attention as one that bears an important physiological activity (JP-A-7-278174, JP-A-7-278175). And JP-A-8-48693).
Figure 0005212973
GGPL-III functions as a marker specific to this bacterium and has been found to be useful for diagnosis of rheumatoid arthritis. If the diagnosis of rheumatism becomes possible, various treatments at an early stage are possible, and the possibility of complete cure of the disease is improved.
A method for synthesizing GGPL-III has been previously reported by Nishida et al., One of the inventors of the present application (JP-A-7-304789, Y. Nishida et al, Tetrahedron Letters 40, 1999, 2371-2374). .

ところで、GGPL−IIIを診断薬に利用する場合、従来の合成法では収率が低く、十分な量を供給することが困難であり、収率の高い合成法が望まれている。また、GGPL−IIIはいわゆる糖脂質の一種であり、糖や脂質の誘導体は生理活性を有するものが多いので、GGPL−IIIに対して、エステル結合しているカルボン酸の炭素数が異なる化合物、糖部分の立体構造がグルコース以外の糖に由来する化合物、その他の立体異性体についても、有用な生理活性を有する化合物が存在することが期待される。従って、GGPL−IIIなどと関連する糖脂質誘導体の生理活性を利用・研究するための一助としての多面的な合成法の確立が望まれている。
本発明は上記実情に鑑み完成されたものであり、GGPL−IIIに代表される糖脂質誘導体を効率よく合成できる製造方法を提供することを解決すべき課題とする。
更に、上記GGPL−IIIの合成方法の研究において発見した有用な合成中間体及びその製造方法についても提供することを解決すべき課題とする。
By the way, when GGPL-III is used as a diagnostic agent, the conventional synthesis method has a low yield, it is difficult to supply a sufficient amount, and a synthesis method with a high yield is desired. Further, GGPL-III is a kind of so-called glycolipid, and many sugars and lipid derivatives have physiological activity. It is expected that compounds having useful physiological activity also exist for compounds in which the steric structure of the sugar moiety is derived from sugars other than glucose and other stereoisomers. Therefore, establishment of a multifaceted synthesis method is desired as an aid for utilizing and researching the physiological activity of glycolipid derivatives related to GGPL-III and the like.
The present invention has been completed in view of the above circumstances, and an object to be solved is to provide a production method capable of efficiently synthesizing a glycolipid derivative typified by GGPL-III.
Furthermore, it is an object to be solved to provide useful synthetic intermediates discovered in the above research on the synthesis method of GGPL-III and a production method thereof.

上記課題を解決する目的で本発明者らはGGPL-IIIの合成方法について鋭意検討を行った結果、従来とは異なる特徴を持つ方法を見いだし、その方法を完成させる過程において有用な新規糖脂質誘導体及びその新規合成方法を完成させた。
特許文献4に示す製造方法は、出発原料として脂肪酸を持つ糖脂質を用いていないので、脂肪酸を導入するための煩雑な操作と反応を最終段階で行うため効率的ではなかった。また、従来方法では、ホスホコリン基を導入する反応においてコリントシレートを用いていたが、コリントシレートは吸湿性であり、また反応溶媒に溶けにくいなどの理由から著しい収率の低下がみられた。本発明方法では新たな反応経路をもつ反応を見いだし、大幅な収率の改善を行った。そして、従来方法では、ホスホリルセリノール基の前駆体としてp−メトキシフェニル基を保護基として持つ化合物を用いていたが、p−メトキシフェニル基をはずす反応は高価で有毒な銀塩を必要とすること、また、精製操作が煩雑になるなどの難点であったが、本発明方法では上記の問題点を解決した。以下、GGPL-IIIを合成する反応、並びにその反応過程において発見された有益な反応を挙げて説明する。
(1)本発明の化合物の説明のために参考となる合成法1:一般式(VIII)などのグリセロ型の糖脂質は、植物や微生物に多く見出される糖脂質であり、それらの細胞膜成分である。近年の研究において、グリセロ糖脂質に抗炎症作用や抗癌作用が見られることなどが報告されており、その生理機能が注目されている。同時に、安全性が高い界面活性化合物であり、化粧品や医薬品としての応用も期待される。
本発明において、特にα型の糖鎖結合を持つグリセロ糖脂質は、慢性関節炎リウマチの原因菌として疑われているマイコプラズマファーメンタンスが細胞膜に高濃度で有する糖リン脂質の鍵構造である。この糖リン脂質は、本菌の病原性の本体の一つであることから、関節炎リウマチをはじめとする自己免疫疾患の診断法、さらには治療法の開発において、重要な鍵化合物である。そのため、一般式(VIII)の効率的な合成が鍵となる。しかしながら、一般式(VIII)の立体選択的な合成手法は、α型のグリコシド結合の構築とグリセロール部分の立体の両方を制御するという、技術的に困難な2点のため、報告例はほとんどない。一般式(VIII)の化合物を得るために、α型のグリコシド結合の構築とグリセロール部分の立体の両方を制御する手法について、鋭意検討を行った。
すなわち、本発明者らが検討した糖脂質誘導体の合成方法は、1位以外のOH基について保護基を導入した糖類であるドナー化合物に対して、ホスホニウムハロゲン化合物及び塩基性溶媒の存在下、光学活性なグリシドール又はグリシドールから誘導される光学活性なグリセロール骨格をもつ誘導体をアクセプター化合物として反応させ、α−グリコシル結合およびグリセロール部分の立体構造制御を同時に構築する工程を有することを特徴とする。
ここで、ドナー化合物としての糖類においては、1位のOH基とそれ以外のOH基とは反応性がわずかに異なるので、他のOH基と異なった官能基を1位のOH基に導入したり、官能基を導入しなかったりすることが比較的容易にできる。例えば、前記ドナー化合物は、D−グルコース又はD−ガラクトースの2〜4位のOH基にエーテル系の保護基を導入し、6位のOH基にエステル系の保護基を導入した糖誘導体であることが望ましい。
ホスホニウムハロゲン化合物は特に限定しないが、G3P(Gは芳香族基、アルキル、アルケン類を含む炭化水素基やヘテロ原子を含む−OG’及び−NG’2から独立して選択可能である。G’は炭化水素基、又は、Gと同様の基準で選択できる。)とCHmX4−m(式中、Xはハロゲン、好ましくはBr又はI、更に好ましくはBr;0≦m≦2)とを反応させた化合物が例示できる。
G3PにおけるGとしては芳香族性基や炭化水素性基のほか、ヘテロ原子を含む官能基を採用することもできる。Gはすべて異なるものを採用しても良いし、同じものを採用しても良い。そして、それぞれのGとして採用できる炭化水素基は炭素数1〜10、特に好ましくは炭素数2〜8の炭化水素基(例えばアルキル基)を採用することができる。例えば、Gとしてはフェニル基、シクロヘキシル基、ブチル基、ヘキシル基、オクチル基などが採用できる。
更に、Gとしては、前述したアルキル基や基などの炭化水素基のほか、炭素原子や水素原子の幾つかをハロゲン、酸素、窒素、イオウ原子により置換した基も採用できる。また、ピリジンなどのような複素環式芳香族化合物や多重環式化合物を採用することもできる。例えば、ジフェニル(2-ピリジル)ホスフィン(R=フェニル基、2−ピリジル基)や(4-ジメチルアミノフェニル)ジフェニルホスフィン(R=フェニル基、4−ジメチルアミノフェニル基)などが例示できる。これらの化合物は酸性水溶液で洗浄することで有機層から容易に取り除くことができる。更に、1以上のRを介してポリマーなどからなる基材に結合させることで、後処理における除去が容易になる。例えば、Gとしてスチリル基などのビニル基を有する基を導入し、そのビニル基によりポリマー基材状にグラフト化するなどの手法が挙げられる。
これらの混合物を塩基性溶媒の存在下、反応させることで目的とする化合物が得られる。塩基性溶媒としては以下の溶媒や以下の溶媒を主要成分として含有するものが例示できる。すなわち、(a)ジメチルホルムアミド、ジエチルホルムアミドなどのホルムアミド系溶媒、(b)ホルムアミド系溶媒と有機溶媒とを混合させた溶媒(有機溶媒としてはトルエンなどの非プロトン性溶媒やジクロロメタンなどの含ハロゲン溶媒)、(c)テトラメチル尿素と有機溶媒とを混合させた溶媒(有機溶媒としてはトルエンなどの非プロトン性溶媒やジクロロメタンなどの含ハロゲン溶媒)である。
アクセプター化合物(光学活性なグリシドール又はグリシドールから誘導される光学活性なグリセロール骨格をもつ誘導体)としては下式に示すようなグリシドール及びグリシドール誘導体が挙げられる。2位の不斉炭素における立体構造が制御されており、その立体構造が最終生成物の立体構造を決定する。これら誘導体は目的の立体構造をもつグリシドールにハロゲンイオン(臭素やヨウ素イオンなど)を反応させることで得ることができる。

Figure 0005212973
(式中、Xはハロゲン、特にBr、Iが望ましい)
(2)新規化合物:ここで、(1)の本発明の化合物の説明のために参考となる合成法1の合成方法に関連して中間体として現れる糖脂質誘導体合成中間体のうち、以下の一般式(I)及び(II)で表される糖脂質誘導体合成中間体は新規化合物であり、本反応過程において非常に重要且つ有用な鍵となる化合物である。
Figure 0005212973
(式(I)中、2つのRは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)から独立して選択可能であり;Yはそれぞれ独立して選択できるOH基の保護基又は水素である)
Figure 0005212973
(式(II)中、Rは炭化水素基から独立して選択可能であり;Yはそれぞれ独立して選択できるOH基の保護基又は水素である。Rは炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基から独立して選択することが望ましい。本化合物の糖類由来部分の立体構造はD−ガラクトースと同じである。)
Yとしての保護基は特に限定しないが、例えば、ベンジル基などのエーテル系保護基、アセチル基などのエステル系保護基、tert−ブチル−ジメチルシリル基(TBDMS基)などのシリルエーテル系保護基が挙げられる。Yはすべて異なるものでもよく、同一のものでも良い。その後の反応における脱離などの必要性に応じて適宜選択できる。本発明では糖類由来の糖骨格における6位のOH基を保護する保護基(Y)が糖骨格における他のOH基(2〜4位)を保護する保護基(Y)と異なるものを選択することが望ましい。
式(I)、(II)の化合物を得る方法としては(1)の本発明の化合物の説明のために参考となる合成法1にて説明した合成方法にて、対応する立体構造をもつ糖類及びグリシドール(誘導体)を反応させた後、得られた化合物にグリシドール由来部分のOH基に、対応するRをもつカルボン酸をエステル化することで得ることができる。エステル化の方法としては通常のエステル化法のほか、対応するカルボン酸の酸クロライドなどを反応させることで容易に行うことができる。
(3)参考となる化合物:更に、GGPL-IIIの合成中間体として用いられる下式(III)又は(IV)に記載の糖脂質誘導体合成中間体が有用な化合物として挙げられる。
Figure 0005212973
(式(III)及び(IV)中、Tはエーテル系保護基を表す。(例えば、Tとしてはトリチル基又はメトキシトリチル基が採用できる。以下のTについても同じ)。)
(4)本発明の化合物の説明のために参考となる合成法2:これらの一般式(III)及び(IV)で表される化合物は以下の方法で合成できる。すなわち、下式(V)に記載の化合物に対して、開環しながらUで表されるエーテル置換基を導入して、対応する立体構造をもつ下記(VI)に記載の化合物とする工程と、
Figure 0005212973
(式(V)中、Tはエーテル系保護基を表す。)
Figure 0005212973
(式(VI)中、Tはエーテル系保護基を表し、Uはエーテル置換基(例えばPMP基:パラメトキシフェニル基)である)
前記式(VI)中のOH基をアジド化する工程と、
前記Uで示されるエーテル置換基及び前記Tで示されるエーテル系保護基のうち、該Uで示されるエーテル置換基を酸化反応で選択的に脱離し、対応する立体構造をもつ式(III)又は(IV)に記載のセリノール誘導体を得る工程と、
Figure 0005212973
を有することを特徴とする糖脂質誘導体合成中間体の合成方法である。
(5)新規化合物:下記一般式(VII)に記載の糖脂質誘導体合成中間体。
Figure 0005212973
(式(VII)中、Xはハロゲン、好ましくはBr又はI、更に好ましくはBr;Rは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)から独立して選択可能であり;Qは独立して選択できるリンの保護基又は水素であり;Yはそれぞれ独立して選択できるOH基の保護基又は水素である。)
一般式(VII)の化合物は後述する(6)の新規合成法3の方法で合成可能である。ここで、一般式(VII)の(A)で示される糖骨格の立体構造がD−グルコースと同じであるものが例示される。また、アジド基が結合する炭素は不斉炭素であり、後述する(6)の新規合成法1の反応で式(III)及び(IV)のいずれを採用するかで、その立体構造を制御できる。
Yとしては特に限定しないが、例えば、ベンジル基などのエーテル系保護基、TBDMS基などのシリルエーテル系保護基が挙げられる。Yはすべて異なるものでもよく、同一のものでも良い。その後の反応における脱離などの必要性に応じて適宜選択できる。
Qとしての保護基は特に限定されず、一般的なリンの保護基が採用できる。例えば、2−シアノエチル基、アリル基、ベンジル基、t−ブチル基が挙げられる。
(6)新規合成法1:立体構造が制御された下記一般式(VIII)で表される糖脂質誘導体合成中間体に対して、ホスホロアミダイト誘導体と下記一般式(III)又は(IV)で表される化合物とを活性化剤の存在下、反応させるアミダイト法により、下記一般式(IX)で表される糖脂質誘導体合成中間体を得る工程を有することを特徴とする糖脂質誘導体合成中間体の製造方法。
Figure 0005212973
(式(VIII)中、Rは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)から独立して選択可能であり;Yはそれぞれ独立して選択できるOH基の保護基である)
Figure 0005212973
(式(III)及び(IV)中のTはエーテル系保護基を表す。)
Figure 0005212973
(式(IX)中、Rは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)から独立して選択可能であり;Qは前記ホスホロアミダイト由来のリンの保護基であり;Yはそれぞれ独立して選択できるOH基の保護基であり;Tはエーテル系保護基を表す。)
Yとしては特に限定しないが、例えば、ベンジル基などのエーテル系保護基、TBDMS基などのシリルエーテル系保護基が挙げられる。Yはすべて異なるものでもよく、同一のものでも良い。その後の反応における脱離などの必要性に応じて適宜選択できる。
Qは特に限定されず、一般的なリンの保護基が採用できる。例えば、2−シアノエチル基、アリル基、ベンジル基、t−ブチル基が挙げられる。
(7−1)新規合成法2:GGPL-IIIを合成する製造方法として、D−グルコース又はD−ガラクトースの2〜4位のOH基にエーテル系の保護基を導入し、6位のOH基にエステル系の保護基を導入した糖誘導体をドナー化合物とし、前述の(1)の本発明の化合物の説明のために参考となる合成法1に記した糖脂質誘導体合成中間体の製造方法により下記一般式(X)で表される糖脂質誘導体合成中間体を合成する工程と、
Figure 0005212973
(式(X)中、XはBr又はI;Yはそれぞれ独立して選択できるOH基の保護基である)
Yとしては特に限定しないが、例えば、ベンジル基などのエステル系保護基、アセチル基などのアシル系保護基、TBDMS基などのシリルエーテル系保護基が挙げられる。Yはすべて異なるものでもよく、同一のものでも良い。その後の反応における脱離などの必要性に応じて適宜選択できる。本発明では糖類由来の糖骨格における6位のOH基を保護する保護基(Y)が糖骨格における他のOH基(2〜4位)を保護する保護基(Y)と異なるものを選択することが望ましい。
該一般式(X)に示された糖脂質誘導体合成中間体における、グリシドールに由来するエポキシ構造又は3−ハロゲン化−プロパン−1,2−ジオール由来の部分構造がもつハロゲン基又はOH基に対して、炭素数2〜31(好ましくは炭素数7〜27)の脂肪酸(つまり、Rとしては炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20))によりエステル化して下記一般式(XI)で表される糖脂質誘導体合成中間体を得る工程と、
Figure 0005212973
(式(XI)中、Yはそれぞれ独立して選択できるOH基の保護基であり;Rは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)から独立して選択される。)
該一般式(XI)で表される糖脂質誘導体合成中間体の糖由来の部分構造がもつ6位のOH基に対して、リン酸ジエステル化試薬を用いたアミダイト法にて前述の(4)の本発明の化合物の説明のために参考となる合成法2に記載の製造方法により合成された一般式(III)又は(IV)の化合物をリン酸エステル結合で導入し、(III)又は(IV)由来の部分構造がもつTで示されるエーテル系保護基を脱離してOH基とし、下記一般式(XII)で表される糖脂質誘導体合成中間体を得る工程と、
Figure 0005212973
(式(XII)中、Yはそれぞれ独立して選択できるOH基の保護基であり;Qは独立して選択できるリンの保護基であり、前記リン酸ジエステル化剤由来である;Rは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)から独立して選択される。)
Qは特に限定されず、一般的なリンの保護基が採用できる。例えば、2−シアノエチル基、アリル基、ベンジル基、t−ブチル基が挙げられる。
該一般式(XII)で表される糖脂質誘導体合成中間体に対して、リン酸ジエステル化試薬を用いたアミダイト法にて2−ハロゲン化エタノール(例えば2−ブロモ−エタノール又は2−ヨード−エタノール)をリン酸エステル結合で導入して下記一般式(XIII)で表される糖脂質誘導体合成中間体を得る工程と、
Figure 0005212973
(式(XIII)中、XはBr又はIであり;Yはそれぞれ独立して選択できるOH基の保護基であり;Qは独立して選択可能なリンの保護基であり、前記リン酸ジエステル化剤に由来する;Rは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)から独立して選択される。)
該一般式(XIII)で表される糖脂質誘導体合成中間体にアミン化合物(1級、2級及び3級アミンから選択させる。例えばトリメチルアミン、トリエチルアミン、トリアルキルアミン、トリフェニルアミンなど)を反応させた後、前記一般式(III)又は(IV)由来の部分構造がもつアジド基を還元し、Yで示される糖部分の水酸基の保護基を脱保護して立体構造が制御された下記一般式(XIV)で表される糖脂質誘導体を得る工程と、
Figure 0005212973
(式(XIV)中、Zはアミン化合物由来の1級、2級又は3級アミンであり;Rは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)である)
を有することを特徴とする糖脂質誘導体の製造方法である。
(7−2)上記合成法は以下の2つの方法の組み合わせでも表記できる。
すなわち、(a)一般式(XII)で表される糖脂質誘導体合成中間体に対して、ホスホロアミダイト誘導体と2−ハロゲン化エタノールとを活性化剤の存在下、反応させるアミダイト法により、下記一般式(XIII)で表される糖脂質誘導体合成中間体を得る工程を有することを特徴とする糖脂質誘導体合成中間体の製造法と、(b)一般式(XIII)で表される糖脂質誘導体合成中間体に対して、1級、2級および3級アミンから選択させるアミン化合物を反応させることにより、下記一般式(XV)で表させる糖脂質誘導体を得る工程を有することを特徴とする糖脂質誘導体合成中間体の製造法である。
Figure 0005212973
(式(XV)中、Yはそれぞれ独立して選択できるOH基の保護基であり;Zは前記アミン化合物由来の1級、2級又は3級アミンであり;Rは炭化水素基(炭素数1〜30(好ましくは炭素数6〜26、更に好ましくは炭素数12〜20)のアルキル基が例示される)から独立して選択される。)
ここで、前記一般式(X)中で表される糖脂質誘導体合成中間体、並びに、得られる前記一般式(XIV)及び(XV)で表される糖脂質誘導体中の(B)で表される糖由来の部分構造は、D−グルコース又はD−ガラクトースと同一の立体構造をもつものが好ましいものとして挙げられる。
一般式(XII)で表される糖脂質誘導体合成中間体に対して、リン酸ジエステル化試薬を用いたアミダイト法にて2−ブロモ−エタノール、2−ヨード−エタノールなどの2−ハロゲン化エタノールをリン酸エステル結合で導入して下記一般式(XIII)で表される糖脂質誘導体合成中間体を得る工程において、リン酸ジエステル化試薬とは特に限定しないが、ホスホアミダイト誘導体が好ましい。またリン酸エステルとして導入する試薬としては、塩素などのハロゲンや窒素などのヘテロ原子により活性化されたリン酸誘導体を選択することができる。
(8)ここで、前記糖脂質誘導体及び糖脂質誘導体合成中間体並びにその合成方法において、用いられているQで表されたリンの保護基は2−シアノエチル基、アリル基、ベンジル基及びt−ブチル基からそれぞれ独立して選択することができる。
(9)なお、前述した一般式における保護基(Y、Q及びT)については特に記載がない場合でも独立して水素に置換した化合物を採用することができる。また、反応及び/又は使用の都合上、含有するOH基について、反応性などを調節する目的で任意の保護基を置換・導入することができる。
(10)上述の各一般式にて表した化合物におけるRとして鎖式又は脂環式の炭化水素基が採用されてあり、且つ、それら化合物を本発明の製造方法にて製造する場合に、具現化する製造条件によっては、それら化合物中のRで表される炭化水素基としては多重結合を有しないことが好ましい場合も想定できる。その場合に好適なRとしては鎖式又は脂環式のアルキル基が挙げられる。
例えば、Rとしてエチレン性の二重結合を有する場合に、強い還元条件を採用すると、二重結合の部分から開裂などしてR部分が変化することが考えられる。R部分が変化した後の化合物が望む化合物でなければ、二重結合を含まないRを採用するか、後に変化したR部分を望む置換基に変換乃至置換することが望まれる。
(11)糖脂質誘導体合成中間体を合成する方法としては上述したような方法のほか、以下に示すような方法も採用できる。この方法は上述の方法よりもステップ数は多いものの、副反応が進行し難く合成操作が簡便になるという利点がある。具体的には上述した一般式(X)から一般式(XI)に至る合成経路を置き換えるものである。
すなわち、下記一般式(X)で表される糖脂質誘導体合成中間体に対して、酸性条件にて一般式(1):R1COR2(R1及びR2はそれぞれ独立してアルキル基から選択される。R1及びR2にて環を形成することもできる。)で表されるカルボニル化合物を反応させ、下記一般式(2)で表される糖脂質誘導体合成中間体を得る工程と、
Figure 0005212973
(式(X)中、Xはハロゲン;Yはそれぞれ独立して選択できるOH基の保護基である)
Figure 0005212973
(式(2)中、Y、R1及びR2は前記一般式(X)と同じであり;Y1はYとは異なるOH基の保護基である)
前記一般式(2)で表される糖脂質誘導体合成中間体をプロトン酸で処理し、下記一般式(3)で表される糖脂質誘導体合成中間体を得る工程と、
Figure 0005212973
(式(3)中、Y及びY1は前記一般式(2)と同じである)
前記一般式(3)で表される糖脂質誘導体合成中間体に対して、脂肪酸をエステル化して下記一般式(4)で表される糖脂質誘導体合成中間体を得る工程と、
Figure 0005212973
(式(4)中、Y及びY1は前記一般式(3)と同じである;Rはエステル化された脂肪酸由来の構造をもつ)
前記一般式(4)で表される糖脂質誘導体合成中間体に対してフッ化物イオンを反応させることで該一般式(4)で表される糖脂質誘導体合成中間体から置換基Y1を脱保護し下記一般式(5)とする工程と、
Figure 0005212973
(式(5)中、Y及びRは前記一般式(4)と同じである)
を有することを特徴とする糖脂質誘導体合成中間体の製造方法である。
一般式(X)で表される糖脂質誘導体合成中間体におけるグリセロール由来のOH基をカルボニル化合物により保護すると共に、糖の6位由来のOH基を置換基Y1にて保護するものである。ここで、保護基として導入した2つの保護基の間で導入条件及び脱離条件が相違するものを選択することで、それぞれのOH基に目的の基を導入することができる。
具体的に望ましいものとしては以下の通りである。前記一般式(2)の糖脂質誘導体合成中間体を得る工程は、前記一般式(X)における糖由来の骨格の6位に結合した−OYの保護基Yを脱保護する工程と、前記ケトン化合物を反応させる工程と、前記糖由来の骨格の6位に結合した−OH基に保護基Y1を導入する工程とをもつことが望ましい。
前記一般式(2)〜(4)における置換基Y1はtert−ブチル−ジフェニルシリル基であることが望ましい。その場合に、前記フッ化物イオンはトリブチルアミンハイドロフッ化物又はテトラブチルアンモニウムフッ化物由来であることが望ましい。
そして、前記カルボニル化合物はアセトンおよびその誘導体であることが望ましい。
また、前記一般式(3)で表される糖脂質誘導体合成中間体を得る工程において用いる前記プロトン酸は、官能基としてスルホ基をもつ陽イオン交換樹脂に由来することが望ましい。陽イオン交換樹脂としては、一般的なスチレン−ジビニルベンゼン共重合体にスルホ基を導入した樹脂(例えば、Amberlyst15;オルガノ株式会社製)が例示できる。
そして、前記一般式(4)で表される糖脂質誘導体合成中間体を得る工程は前記一般式(3)で表される糖脂質誘導体合成中間体にエステル化する前記脂肪酸に対応する脂肪酸クロライドを反応させる工程を採用することで簡単に導入することができる。 In order to solve the above-mentioned problems, the present inventors have intensively studied a method for synthesizing GGPL-III. As a result, they have found a method having characteristics different from the conventional ones, and are useful in the process of completing the method. And a novel synthesis method thereof.
Since the production method shown in Patent Document 4 does not use glycolipids having fatty acids as starting materials, it is not efficient because complicated operations and reactions for introducing fatty acids are performed at the final stage. In addition, in the conventional method, choline tosylate was used in the reaction for introducing a phosphocholine group, but choline tosylate is hygroscopic and has a remarkable decrease in yield because it is difficult to dissolve in the reaction solvent. . In the method of the present invention, a reaction having a new reaction route was found, and the yield was greatly improved. In the conventional method, a compound having a p-methoxyphenyl group as a protective group is used as a precursor of the phosphoryl serinol group. However, the reaction for removing the p-methoxyphenyl group requires an expensive and toxic silver salt. In addition, the above-described problems have been solved by the method of the present invention, although the purification operation is difficult. Hereinafter, the reaction for synthesizing GGPL-III and the beneficial reaction discovered in the reaction process will be described.
(1) Synthetic method 1 used as a reference for explaining the compounds of the present invention : Glycero-type glycolipids such as the general formula (VIII) are glycolipids frequently found in plants and microorganisms, and are cell membrane components thereof. is there. In recent studies, it has been reported that glyceroglycolipids have anti-inflammatory and anti-cancer effects, and their physiological functions are attracting attention. At the same time, it is a highly safe surface active compound and is expected to be applied as a cosmetic or pharmaceutical product.
In the present invention, glyceroglycolipid having an α-type sugar chain bond is a key structure of glycophospholipid that mycoplasma fermentans suspected as a causative agent of rheumatoid arthritis has a high concentration in the cell membrane. Since this glycophospholipid is one of the pathogenic main bodies of this bacterium, it is an important key compound in the diagnosis of autoimmune diseases such as rheumatoid arthritis and the development of therapeutic methods. Therefore, efficient synthesis of general formula (VIII) is the key. However, since the stereoselective synthesis method of the general formula (VIII) is technically difficult to control both the construction of the α-type glycoside bond and the stereo of the glycerol moiety, there are few reports. . In order to obtain the compound of the general formula (VIII), intensive studies were conducted on a method for controlling both the construction of the α-type glycosidic bond and the steric structure of the glycerol moiety .
That is , the method for synthesizing the glycolipid derivative investigated by the present inventors is based on an optical method in the presence of a phosphonium halogen compound and a basic solvent against a donor compound that is a saccharide introduced with a protecting group for the OH group other than the 1-position. It has a step of reacting an active glycidol or a derivative having an optically active glycerol skeleton derived from glycidol as an acceptor compound, and simultaneously constructing a three-dimensional structure control of an α-glycosyl bond and a glycerol moiety.
Here, in the saccharide as the donor compound, the reactivity of the OH group at the 1st position is slightly different from that of the other OH groups, so a functional group different from the other OH groups is introduced into the OH group at the 1st position. Or no functional group can be introduced relatively easily. For example, the donor compound is a sugar derivative in which an ether-based protecting group is introduced into the OH group at positions 2 to 4 of D-glucose or D-galactose, and an ester-based protecting group is introduced into the OH group at position 6. It is desirable.
The phosphonium halogen compound is not particularly limited, but can be independently selected from G3P (G is a hydrocarbon group containing an aromatic group, alkyl, alkene, or -OG 'and -NG'2 containing a hetero atom. G' Can be selected on the basis of a hydrocarbon group or the same criteria as G) and CHmX4-m (wherein X is halogen, preferably Br or I, more preferably Br; 0 ≦ m ≦ 2). The compound which can be illustrated.
As G in G3P, in addition to an aromatic group or a hydrocarbon group, a functional group containing a hetero atom can also be employed. Different G may be employed, or the same one may be employed. And the hydrocarbon group which can be employ | adopted as each G can employ | adopt a C1-C10, especially preferably C2-C8 hydrocarbon group (for example, alkyl group). For example, as G, a phenyl group, a cyclohexyl group, a butyl group, a hexyl group, an octyl group, or the like can be employed.
Further, as G, in addition to the above-described hydrocarbon groups such as alkyl groups and groups, groups in which some of carbon atoms and hydrogen atoms are substituted with halogen, oxygen, nitrogen, and sulfur atoms can be employed. Moreover, a heterocyclic aromatic compound such as pyridine or a polycyclic compound can also be employed. For example, diphenyl (2-pyridyl) phosphine (R = phenyl group, 2-pyridyl group) and (4-dimethylaminophenyl) diphenylphosphine (R = phenyl group, 4-dimethylaminophenyl group) can be exemplified. These compounds can be easily removed from the organic layer by washing with an acidic aqueous solution. Furthermore, by bonding to a base material made of a polymer or the like via one or more R, removal in post-treatment becomes easy. For example, a method in which a group having a vinyl group such as a styryl group is introduced as G and grafted onto the polymer substrate by the vinyl group can be used.
The desired compound is obtained by reacting these mixtures in the presence of a basic solvent. Examples of the basic solvent include the following solvents and those containing the following solvents as main components. That is, (a) a formamide solvent such as dimethylformamide and diethylformamide, (b) a solvent obtained by mixing a formamide solvent and an organic solvent (the organic solvent is an aprotic solvent such as toluene or a halogen-containing solvent such as dichloromethane) ), (C) A solvent in which tetramethylurea and an organic solvent are mixed (the organic solvent is an aprotic solvent such as toluene or a halogen-containing solvent such as dichloromethane).
Examples of the acceptor compound (optically active glycidol or a derivative having an optically active glycerol skeleton derived from glycidol) include glycidol and glycidol derivatives as shown in the following formula. The steric structure at the asymmetric carbon at the 2-position is controlled, and the steric structure determines the steric structure of the final product. These derivatives can be obtained by reacting glycidol having a desired steric structure with a halogen ion (such as bromine or iodine ion).
Figure 0005212973
(In the formula, X is preferably halogen, particularly Br or I)
(2) Novel compound: Here, among the synthetic intermediates of glycolipid derivatives that appear as intermediates in connection with the synthesis method of synthesis method 1 which is a reference for explaining the compound of the present invention of (1), the following The intermediates for synthesizing glycolipid derivatives represented by the general formulas (I) and (II) are novel compounds and are very important and useful key compounds in this reaction process.
Figure 0005212973
(In the formula (I), two R's are independently from a hydrocarbon group (an alkyl group having 1 to 30 carbon atoms (preferably 6 to 26 carbon atoms, more preferably 12 to 20 carbon atoms is exemplified)). Y is a protecting group for OH group or hydrogen, each of which can be independently selected)
Figure 0005212973
(In the formula (II), R can be independently selected from a hydrocarbon group; Y is a protecting group for OH group or hydrogen which can be independently selected. R is a carbon number of 1 to 30 (preferably carbon). It is desirable to select independently from an alkyl group having 6 to 26, more preferably 12 to 20 carbon atoms. The steric structure of the saccharide-derived portion of this compound is the same as D-galactose.)
The protecting group as Y is not particularly limited. For example, ether protecting groups such as benzyl group, ester protecting groups such as acetyl group, and silyl ether protecting groups such as tert-butyl-dimethylsilyl group (TBDMS group) Can be mentioned. Y may be all different or the same. It can select suitably according to the necessity, such as detachment | desorption in subsequent reaction. In the present invention, a protecting group (Y) that protects the OH group at the 6-position in the sugar skeleton derived from a saccharide is selected from a protecting group (Y) that protects the other OH groups (positions 2 to 4) in the sugar skeleton. It is desirable.
As a method of obtaining the compounds of the formulas (I) and (II), a saccharide having a corresponding three-dimensional structure can be obtained by the synthesis method described in Synthesis Method 1 which serves as a reference for explaining the compound of the present invention in (1). And glycidol (derivative), the resulting compound can be obtained by esterifying a carboxylic acid having R corresponding to the OH group of the glycidol-derived moiety. As the esterification method, in addition to the usual esterification method, it can be easily carried out by reacting the corresponding acid chloride of carboxylic acid.
(3) Reference compound: Further, a glycolipid derivative synthesis intermediate described in the following formula (III) or (IV) used as a synthesis intermediate of GGPL-III is a useful compound.
Figure 0005212973
(In the formulas (III) and (IV), T represents an ether-type protecting group (for example, T can be a trityl group or a methoxytrityl group. The same applies to the following T).)
(4) Synthesis method 2 which serves as a reference for explaining the compound of the present invention : These compounds represented by the general formulas (III) and (IV) can be synthesized by the following method. That is, with respect to the compound described in the following formula (V), an ether substituent represented by U is introduced while ring-opening to obtain a compound described in the following (VI) having a corresponding steric structure; ,
Figure 0005212973
(In formula (V), T represents an ether protecting group.)
Figure 0005212973
(In the formula (VI), T represents an ether protecting group, and U is an ether substituent (for example, PMP group: paramethoxyphenyl group))
A step of azidating the OH group in the formula (VI);
Of the ether substituent represented by U and the ether-based protecting group represented by T, the ether substituent represented by U is selectively eliminated by an oxidation reaction, and has the corresponding steric structure (III) or Obtaining a serinol derivative according to (IV);
Figure 0005212973
A method for synthesizing a glycolipid derivative synthesis intermediate characterized by comprising:
(5) Novel compound: a glycolipid derivative synthesis intermediate described in the following general formula (VII).
Figure 0005212973
(In the formula (VII), X is halogen, preferably Br or I, more preferably Br; R is a hydrocarbon group (having 1 to 30 carbon atoms (preferably 6 to 26 carbon atoms, more preferably 12 to 20 carbon atoms)). Q is an independently selectable phosphorus protecting group or hydrogen; and Y is an independently selectable OH group protecting group or hydrogen. is there.)
The compound of general formula (VII) is compoundable by the method of the novel synthesis method 3 of (6) mentioned later. Here, the thing whose steric structure of the sugar skeleton shown by (A) of general formula (VII) is the same as D-glucose is illustrated. The carbon to which the azide group is bonded is an asymmetric carbon, and the three-dimensional structure can be controlled by adopting any one of formulas (III) and (IV) in the reaction of the novel synthesis method 1 (6) described later. .
Although it does not specifically limit as Y, For example, silyl ether type protecting groups, such as ether type protecting groups, such as a benzyl group, and a TBDMS group, are mentioned. Y may be all different or the same. It can select suitably according to the necessity, such as elimination | elimination in subsequent reaction.
The protecting group as Q is not particularly limited, and a general phosphorus protecting group can be adopted. For example, 2-cyanoethyl group, allyl group, benzyl group, t-butyl group can be mentioned.
(6) Novel synthesis method 1: With respect to a glycolipid derivative synthesis intermediate represented by the following general formula (VIII) whose steric structure is controlled, a phosphoramidite derivative and the following general formula (III) or (IV) A glycolipid derivative synthesis intermediate characterized by having a step of obtaining a glycolipid derivative synthesis intermediate represented by the following general formula (IX) by an amidite method in which the compound represented by the present invention is reacted in the presence of an activator: Body manufacturing method.
Figure 0005212973
(In formula (VIII), R can be independently selected from a hydrocarbon group (an alkyl group having 1 to 30 carbon atoms (preferably 6 to 26 carbon atoms, more preferably 12 to 20 carbon atoms is exemplified)). Y is a protecting group for OH group which can be independently selected.
Figure 0005212973
(T in the formulas (III) and (IV) represents an ether protecting group.)
Figure 0005212973
(In formula (IX), R can be independently selected from a hydrocarbon group (an alkyl group having 1 to 30 carbon atoms (preferably 6 to 26 carbon atoms, more preferably 12 to 20 carbon atoms is exemplified)). Q is a phosphorus protecting group derived from the phosphoramidite; Y is an OH protecting group which can be independently selected; and T represents an ether protecting group.)
Although it does not specifically limit as Y, For example, silyl ether type protecting groups, such as ether type protecting groups, such as a benzyl group, and a TBDMS group, are mentioned. Y may be all different or the same. It can select suitably according to the necessity, such as detachment | desorption in subsequent reaction.
Q is not particularly limited, and a general phosphorus protecting group can be employed. For example, 2-cyanoethyl group, allyl group, benzyl group, t-butyl group can be mentioned.
(7-1) Novel synthesis method 2: As a production method for synthesizing GGPL-III, an ether-based protecting group is introduced into the OH group at positions 2 to 4 of D-glucose or D-galactose, and the OH group at position 6 A sugar derivative having an ester-based protecting group introduced therein as a donor compound, and a method for producing a glycolipid derivative synthesis intermediate described in Synthesis Method 1 described above as a reference for explaining the compound of the present invention of (1) Synthesizing a glycolipid derivative synthesis intermediate represented by the following general formula (X);
Figure 0005212973
(In formula (X), X is Br or I; Y is a protecting group for the OH group which can be independently selected)
Y is not particularly limited, and examples thereof include ester-based protecting groups such as benzyl group, acyl-based protecting groups such as acetyl group, and silyl ether-based protecting groups such as TBDMS group. Y may be all different or the same. It can select suitably according to the necessity, such as elimination | elimination in subsequent reaction. In the present invention, a protecting group (Y) that protects the OH group at the 6-position in the sugar skeleton derived from a saccharide is selected from a protecting group (Y) that protects the other OH groups (positions 2 to 4) in the sugar skeleton. It is desirable.
In the glycolipid derivative synthesis intermediate represented by the general formula (X), the epoxy group derived from glycidol or the halogen group or OH group of the partial structure derived from 3-halogenated-propane-1,2-diol And an ester by a fatty acid having 2 to 31 carbon atoms (preferably 7 to 27 carbon atoms) (that is, R is 1 to 30 carbon atoms (preferably 6 to 26 carbon atoms, more preferably 12 to 20 carbon atoms)). And obtaining a glycolipid derivative synthesis intermediate represented by the following general formula (XI):
Figure 0005212973
(In Formula (XI), Y is a protecting group for an OH group that can be independently selected; R is a hydrocarbon group having 1 to 30 carbon atoms (preferably 6 to 26 carbon atoms, more preferably 12 to 12 carbon atoms). The alkyl group of 20) is exemplified)).
With respect to the 6-position OH group of the sugar-derived partial structure of the glycolipid derivative synthesis intermediate represented by the general formula (XI), the above-mentioned (4) by the amidite method using a phosphodiesterization reagent The compound of the general formula (III) or (IV) synthesized by the production method described in Synthesis method 2 to be referred for explaining the compound of the present invention is introduced by a phosphate ester bond, and (III) or ( IV) a step of removing the ether-based protecting group represented by T in the partial structure derived from OH group to obtain a glycolipid derivative synthesis intermediate represented by the following general formula (XII);
Figure 0005212973
(In Formula (XII), Y is an independently selectable protecting group for OH group; Q is an independently selectable protecting group for phosphorus and is derived from the phosphoric acid diesterification agent; R is carbonized. A hydrogen group (selected independently from an alkyl group having 1 to 30 carbon atoms (preferably an alkyl group having 6 to 26 carbon atoms, more preferably 12 to 20 carbon atoms))
Q is not particularly limited, and a general phosphorus protecting group can be employed. For example, 2-cyanoethyl group, allyl group, benzyl group, t-butyl group can be mentioned.
2-halogenated ethanol (for example, 2-bromo-ethanol or 2-iodo-ethanol) by the amidite method using a phosphodiesterization reagent for the glycolipid derivative synthesis intermediate represented by the general formula (XII) ) With a phosphate ester bond to obtain a glycolipid derivative synthetic intermediate represented by the following general formula (XIII):
Figure 0005212973
(In the formula (XIII), X is Br or I; Y is an independently selectable protecting group for the OH group; Q is an independently selectable protecting group for phosphorus; R is independently selected from a hydrocarbon group (an alkyl group having 1 to 30 carbon atoms (preferably 6 to 26 carbon atoms, more preferably 12 to 20 carbon atoms is exemplified)). .)
The glycolipid derivative synthesis intermediate represented by the general formula (XIII) is reacted with an amine compound (selected from primary, secondary and tertiary amines. For example, trimethylamine, triethylamine, trialkylamine, triphenylamine, etc.). Thereafter, the azide group of the partial structure derived from the general formula (III) or (IV) is reduced, and the steric structure is controlled by deprotecting the protecting group of the hydroxyl group of the sugar moiety represented by Y. Obtaining a glycolipid derivative represented by (XIV);
Figure 0005212973
(In the formula (XIV), Z is a primary, secondary or tertiary amine derived from an amine compound; R is a hydrocarbon group (having 1 to 30 carbon atoms (preferably 6 to 26 carbon atoms, more preferably carbon atoms)). The alkyl group of 12-20) is exemplified))
It is a manufacturing method of the glycolipid derivative characterized by having.
(7-2) The above synthesis method can be expressed by a combination of the following two methods.
That is, (a) an amidite method in which a phosphoramidite derivative and 2-halogenated ethanol are reacted in the presence of an activating agent with respect to a glycolipid derivative synthetic intermediate represented by the general formula (XII), A process for producing a glycolipid derivative synthetic intermediate represented by the general formula (XIII), and (b) a glycolipid represented by the general formula (XIII). It has a step of obtaining a glycolipid derivative represented by the following general formula (XV) by reacting an amine compound selected from primary, secondary and tertiary amines with a derivative synthesis intermediate. This is a method for producing a glycolipid derivative synthetic intermediate.
Figure 0005212973
(In formula (XV), Y is a protecting group for an OH group which can be independently selected; Z is a primary, secondary or tertiary amine derived from the amine compound; R is a hydrocarbon group (carbon number). 1 to 30 (preferably an alkyl group having 6 to 26 carbon atoms, more preferably 12 to 20 carbon atoms is exemplified).
Here, the glycolipid derivative synthesis intermediate represented by the general formula (X), and (B) in the obtained glycolipid derivatives represented by the general formulas (XIV) and (XV) As the partial structure derived from sugar, those having the same steric structure as D-glucose or D-galactose are preferable.
A 2-halogenated ethanol such as 2-bromo-ethanol, 2-iodo-ethanol or the like is synthesized on the glycolipid derivative synthesis intermediate represented by the general formula (XII) by an amidite method using a phosphodiesterization reagent. In the step of obtaining a glycolipid derivative synthesis intermediate represented by the following general formula (XIII) by introducing a phosphate ester bond, the phosphoric acid diesterification reagent is not particularly limited, but a phosphoramidite derivative is preferred. As a reagent to be introduced as a phosphoric acid ester, a phosphoric acid derivative activated by a halogen such as chlorine or a heteroatom such as nitrogen can be selected.
(8) Here, in the glycolipid derivative, the glycolipid derivative synthesis intermediate and the synthesis method thereof, the phosphorus protecting group represented by Q used is 2-cyanoethyl group, allyl group, benzyl group and t- Each can be independently selected from a butyl group.
(9) In addition, about the protective group (Y, Q, and T) in the general formula mentioned above, the compound substituted with hydrogen independently can be employ | adopted even if there is no description in particular. In addition, for the convenience of reaction and / or use, any protecting group can be substituted / introduced for the purpose of adjusting the reactivity of the contained OH group.
(10) When a chain or alicyclic hydrocarbon group is employed as R in the compounds represented by the above general formulas, and these compounds are produced by the production method of the present invention, the present invention is realized. Depending on the production conditions to be converted, it may be assumed that the hydrocarbon group represented by R in these compounds preferably does not have multiple bonds. Suitable R in that case includes a chain or alicyclic alkyl group.
For example, when R has an ethylenic double bond and a strong reduction condition is adopted, it is conceivable that the R portion changes due to cleavage from the double bond portion. If the compound after the change of the R moiety is not the desired compound, it is desirable to adopt R that does not contain a double bond, or to convert or substitute the R moiety that has been changed to a desired substituent.
(11) As a method for synthesizing a glycolipid derivative synthesis intermediate, the following method can be employed in addition to the method described above. Although this method has a larger number of steps than the above-mentioned method, there is an advantage that the side reaction is difficult to proceed and the synthesis operation is simple. Specifically, the synthesis route from the general formula (X) to the general formula (XI) is replaced.
That is, for the glycolipid derivative synthesis intermediate represented by the following general formula (X), the general formula (1): R1COR2 (R1 and R2 are each independently selected from alkyl groups under acidic conditions. And R2 can also form a ring.) By reacting with a carbonyl compound represented by the following general formula (2):
Figure 0005212973
(In formula (X), X is a halogen; Y is a protecting group for an OH group which can be independently selected)
Figure 0005212973
(In the formula (2), Y, R1 and R2 are the same as in the general formula (X); Y1 is a protecting group for an OH group different from Y)
Treating the glycolipid derivative synthesis intermediate represented by the general formula (2) with a protonic acid to obtain a glycolipid derivative synthesis intermediate represented by the following general formula (3);
Figure 0005212973
(In Formula (3), Y and Y1 are the same as those in General Formula (2)).
A step of esterifying a fatty acid with respect to the glycolipid derivative synthetic intermediate represented by the general formula (3) to obtain a glycolipid derivative synthetic intermediate represented by the following general formula (4);
Figure 0005212973
(In the formula (4), Y and Y1 are the same as those in the general formula (3); R has a structure derived from an esterified fatty acid)
The substituent Y1 is deprotected from the glycolipid derivative synthetic intermediate represented by the general formula (4) by reacting the glycolipid derivative synthetic intermediate represented by the general formula (4) with a fluoride ion. And the following general formula (5):
Figure 0005212973
(In the formula (5), Y and R are the same as those in the general formula (4)).
It is a manufacturing method of the glycolipid derivative synthetic intermediate characterized by having.
The glycerol-derived OH group in the glycolipid derivative synthesis intermediate represented by the general formula (X) is protected with a carbonyl compound, and the OH group derived from the 6-position of the sugar is protected with a substituent Y1. Here, the target group can be introduced into each OH group by selecting those having different introduction conditions and elimination conditions between the two protective groups introduced as protective groups.
Specifically desirable are as follows. The step of obtaining the intermediate for synthesizing the glycolipid derivative of the general formula (2) includes the step of deprotecting the protecting group Y of -OY bonded to the 6-position of the skeleton derived from the sugar in the general formula (X), and the ketone It is desirable to have a step of reacting a compound and a step of introducing a protecting group Y1 to the —OH group bonded to the 6-position of the sugar-derived skeleton.
The substituent Y1 in the general formulas (2) to (4) is preferably a tert-butyl-diphenylsilyl group. In that case, the fluoride ion is desirably derived from tributylamine hydrofluoride or tetrabutylammonium fluoride.
The carbonyl compound is preferably acetone or a derivative thereof.
Moreover, it is desirable that the protonic acid used in the step of obtaining the glycolipid derivative synthetic intermediate represented by the general formula (3) is derived from a cation exchange resin having a sulfo group as a functional group. Examples of the cation exchange resin include a resin in which a sulfo group is introduced into a general styrene-divinylbenzene copolymer (for example, Amberlyst 15; manufactured by Organo Corporation).
The step of obtaining the glycolipid derivative synthetic intermediate represented by the general formula (4) comprises the step of obtaining a fatty acid chloride corresponding to the fatty acid to be esterified into the glycolipid derivative synthetic intermediate represented by the general formula (3). It can be easily introduced by adopting a reaction step.

本発明の糖脂質誘導体の製造方法は脂質誘導体を効率的に製造することができる。本発明の脂質誘導体合成中間体はその製造方法における鍵となる化合物である。   The method for producing a glycolipid derivative of the present invention can efficiently produce a lipid derivative. The lipid derivative synthesis intermediate of the present invention is a key compound in its production method.

(合成例1)
下記反応式に示す方法でD−グルコース(1位のOH基がメチル化されている)から化合物7a(一般式(VIII)の化合物に相当:単糖部分はグルコース由来、グリシドール由来の部分は(S)−グリシドール由来、Yはベンジル基、Rは炭素数15のアルキル基)を合成した。以下に反応の概略を説明する。
また、下記各段階の一部において、用いる化合物を変更することで、化合物7b、7c、7dについても合成できる。
・第1段階
メチルグルコシドを出発原料とし、2,3,4,6位をエーテル系の保護基で保護する。この化合物を無水酢酸に溶かし、そこに酸触媒を加えることによって、1位と6位の水酸基がアセチル化される。さらに1位のアセチル基のみを脱保護することによって化合物3(前述の(1)の新規合成法1におけるドナー化合物に相当)を得る。ここで、ドナー化合物としてガラクトースを採用すると、対応する立体構造をもつ最終生成物が得られる(下記反応式参照)。
・第2段階
化合物3をドナー化合物とし、光学活性(S)−グリシドールをアクセプター化合物とする新規合成法1を行い、鍵となる立体骨格をもつ化合物4を合成する。ここで、アクセプター化合物として(R)−グリシドールを採用すると、対応する立体構造をもつ最終生成物が得られる(下記反応式参照)。
・第3段階
化合物4(化合物4−a及び化合物4−bの混合物;一般式(X)の化合物に相当:6位のOH基はアセチル基、2〜4位のOH基はベンジル基、XはBr)の糖の6位水酸基の保護基を脱保護した後、グリセロールのsn−1位に脂肪酸を導入する。
・第4段階
化合物5の糖の6位水酸基(一級)をTBDMS基で保護し、グリセロールのsn−2位の水酸基(2級)に脂肪酸を導入した後、TBDMS基を脱保護することにより、化合物7aを合成する。
(合成)
化合物3の合成:メチルグルコシド(10g)をDMF300mLに溶解し、NaH(12.4g)を0℃で加えて0℃で30分攪拌した。その後、BnBr(53.9mL)を0℃で加えて、室温で5時間攪拌した。反応終了後、メタノールを加えて試薬を分解したのち、目的物を有機層に抽出して、洗浄、乾燥、濃縮し、残渣をシリカゲルカラムを用いたクロマトグラフィーで精製し、化合物1を得た。
化合物1を無水酢酸(140mL)に溶解し、硫酸(120μL)を0℃で加えて室温で約3時間攪拌した。反応後、溶液を中和したのち、目的物を有機層に抽出して、洗浄、乾燥、濃縮し、残渣をシリカゲルカラムクロマトグラフィーで精製し、化合物2を得た。
化合物2をTHF(100mL)に溶解し、ベンジルアミン(8.9g)を加えて室温で約2日間攪拌した。溶液を洗浄、乾燥、濃縮し、残渣をシリカゲルカラムクロマトグラフィーで精製し、化合物3を得た。収量16.1g(α:β=2:1)、シロップ状、収率59%(3ステップ)。
H−NMR(500MHz,rt,CDCl):a−anomer,d7.257.35(m,5Hx3,−Bn),5.20(d,1H,J=3.5Hz,H−1),4.555.00(d,2Hx3,−CHPh),4.27(m,2H,H−6),4.10(m,1H,H−5),4.00(dd,1H,J=9.0 and 9.5Hz,H−3),3.56(dd,1H,J=3.5 and 9.5Hz,H−2),3.50(dd,1H,J=9.0 and 10.0Hz,H−4),2.03(s,3H,−OAc);b−anomer,d7.257.35(m,5Hx3,−Bn),4.74(d,1H,J=8.0Hz,H−1),4.555.00(d,2Hx3,−CHPh),4.34 and 4.19(dd,2H,H−6),3.96(dd,1H,J=9.0 and 9.5Hz,H−3),3.55(dd,1H,J=8.0 and 9.5Hz,H−2),3.41(dd,1H,J=7.5 and 9.0Hz,H−4),2.05(s,3H,−OAc).
化合物4の合成:化合物3(5.0g)をDMFに溶解し、PhP(7.9g)とCBr(10g)を0℃で加え、室温で14時間攪拌した。反応終了後、目的物を酢酸エチルで抽出し、この溶液を洗浄し、乾燥、濃縮した。
残渣に含まれるPhP=0をジエチルエーテル−ヘキサンで結晶化させて濾過により取り除き、ろ液を濃縮して得られた残渣をシリカゲルカラムクロマトグラフィーによって精製した。時間や条件によって、化合物4−aのエポキシの一部がブロモアニオンで開環された化合物4−bが生成するが、これは混合物のまま次の反応に用いた。
化合物5の合成:得られた残渣をメタノール(200mL)に溶解し、KCO(1.5g)を加えて約3時間攪拌した。反応終了後、溶液を洗浄し、乾燥、濃縮させ、得られた残渣を真空雰囲気下で乾燥させた。次にこの残渣を2mLのDMFに溶解した溶液を、パルミチン酸Cs(36g)をDMF(200mL)に加え100℃〜110℃に加熱した反応液中に滴下し、そのまま100℃〜110℃で約1時間攪拌した。
反応終了後、溶液を冷却し、酢酸エチルを加えて未反応のパルミチン酸Csを析出させ、ろ過により取り除いた。得られたろ液を洗浄、乾燥、濃縮し、得られた残渣をシリカゲルカラムにより精製した。収量3.87g、収率50%(化合物3から3ステップ)。
H−NMR(500MHz,CDCl);d7.407.23(m,5Hx3,−CH),4.964.64(d,2Hx3,−CH),4.73(d,1H,J=3.5Hz,H−1),4.18(dd,1H,J=4.5 and 12Hz,glycerol H−1proS),4.13(dd,1H,J=5.5 and 11.5Hz,glycerol H−1proR),4.05(b,1H,glycerol H−2),3.98(dd,1H,J=9.5 and 9.5Hz,H−3),3.76(dd,1H,J=4.0 and 10.5Hz,glycerol H−3proR),3.653.80(b,2H,H−6ProR and H−6proS),3.68(m,1H,H−5),3.52(dd,1H,J=9.0 and 9.5Hz,H−4),3.51(dd,1H,J=3.5 and 9.5Hz,H−2),3.40(dd,1H,J=7.5 and 10.5Hz,glycerol H−3proS),2.34(t,2H,J=7.5Hz,−OCOCHCH(CH12CH),1.62(b,2H,−OCOCHCH(CH12CH),1.25(b,24H,−OCOCHCH(CH12CH),0.88(t,3H,J=7.0Hz,−OCOCHCH(CH12CH).
化合物7aの合成:化合物5(2.3g)をピリジン140mLに溶解し、N,N−ジメチルアミノピリジン(DMAP:触媒量)を加え、さらにTBDMSCl(676mg)を加えて約12時間室温で攪拌した。反応終了後、溶液にメタノールを加えて12時間攪拌し試薬を分解させた後、濃縮し、残渣をシリカゲルカラムクロマトグラフィーで粗精製した。得られたシロップをピリジン(40mL)に溶解し、DMAP(触媒量)を加え、パルミチン酸Cl(1.35mL)を滴下して約3時間室温で攪拌した。
反応終了後、溶液にメタノールを加えて12時間攪拌し試薬を分解させた後、濃縮した。この残渣に30%トリフルオロ酢酸−メタノール:クロロホルム=2:1溶液(30mL)を加えて30分室温で攪拌した。反応終了後、溶液を濃縮し、残渣をシリカゲルカラムを用いたクロマトグラフィーで精製した。収量1.96g、収率65%。
[α] 22=+23.0(c 0.27,CHCl).H−NMR(500MHz,CDCl);d7.407.23(m,5Hx3,−CH),5.23(b,1H,glycerol H−2),4.964.64(d,2Hx3,−CH),4.70(d,1H,J=3.5Hz,H−1),4.40(dd,1H,J=4.0 and 12.0Hz,glycerol H−1proS),4.19(dd,1H,J=6.0 and 12.0Hz,glycerol H−1proR),3.96(dd,1H,J=9.5 and 9.5Hz,H−3),3.72(dd,1H,J=5.5 and 10.5Hz,glycerol H−3proR),3.72 and 3.66(b,2H,H−6ProR and H−6proS),3.65(m,1H,H−5),3.54(dd,1H,J=5.5 and 10.5Hz,glycerol H−3proS),3.50(dd,1H,J=9.5 and 10.0Hz,H−4),3.49(dd,1H,J=3.5 and 9.5Hz,H−2),2.29(m,2Hx2,−OCOCHCH(CH12CH),1.58(b,2Hx2,−OCOCHCH(CH12CH),1.25(b,24Hx2,−OCOCHCH(CH12CH),0.88(t,3Hx2,J=7.0Hz,−OCOCHCH(CH12CH).MS(FAB);1024[M+Na]
化合物7bの合成:化合物7b(一般式(VII)において、単糖部分はグルコース由来、グリシドール由来の部分は(R)−グリシドール由来、Yはベンジル基、Rは炭素数15のアルキル基である化合物)の合成は、化合物3から4を合成する反応において(R)−グリシドールを用いて合成した。他の反応は化合物7aと同様の反応にて行った。最終的な収率も同程度であった。
7b:[α]D32=+18.5(c 1.0,CHCl);IR(KBr film):3452,2924,2854,1739,1586,1455,1296,1159,1095,710cm ̄H−NMR(500MHz,CDCl):δ7.40〜7.23(m,5Hx3,−CH),5.23(b,1H,glycerol H−2),4.96〜4.63(d,2Hx3,−CH),4.75(d,1H,J=3.5Hz,H−1),4.38(dd,1H,J=3.5 and 12.0Hz,glycerol H−3proR),4.21(dd,1H,J=6.5 and 12.0Hz,glycerol H−3proS),3.96(dd,1H,J=9.5 and 9.5Hz,H−3),3.73(dd,1H,J=6.0 and 11.0Hz,glycerol H−1proS),3.76 abd 3.66(b,2H,H−6ProR and H−6proS),3.65(m,1H,H−5),3.57(dd,1H,J=5.5 and 11.0Hz,glycerol H−1proR),3.51(dd,1H,J=9.5 and 10.0Hz,H−4),3.50(dd,1H,J=3.5 and 9.5Hz, H−2),2.29(b,2Hx2,−OCOCHCH(CH12CH),1.59(b,2Hx2,−OCOCHCH(CH12CH),1.25(b,24Hx2,−OCOCHCH(CH12CH),0.88(t,3Hx2,J=7.0Hz,−OCOCHCH(CH12CH);MS(FAB):m/z calcd for C629610Na[M+Na]1023.7.
化合物7cの合成:化合物7c(一般式(VII)において、単糖部分はガラクトース由来、グリシドール由来の部分は(S)−グリシドール由来、Yはベンジル基、は炭素数15のアルキル基である化合物)の合成は、出発原料としてメチルガラクトシドを用いて合成した。他の反応は化合物7aと同様の反応にて行った。最終的な収率も同程度であった。
7c:[α]D33=+18.8(c 0.9,CHCl);IR(KBr film):3432,2923,2853,1740,1586,1460,1350,1153,1054,697cm−1H−NMR(500MHz,CDCl):δ7.40〜7.23(m,5Hx3,−CH),5.25(b,1H,glycerol H−2),4.96〜4.63(d,2Hx3,−CH),4.83(d,1H,J=3.5Hz,H−1),4.34(dd,1H,J=3.5 and 12.0Hz,glycerol H−1proS),4.18(dd,1H,J=6.0 and 12.0Hz,glycerol H−1proR),4.05(dd,1H,J=3.5 and 9.5Hz,H−2),3.90(dd,1H,H−3),3.89 and 3.68(b,2H,H−6proR and H−6proS),3.73(bt,1H,J=5.5 and 6.0Hz,H−4),3.71(dd,1H,J=5.5 and 10.5Hz,glycerol H−3proR),3.58(dd,1H,J=6.0 and 10.5Hz,glycerol H−3proS),3.47(m,1H,H−5),2.28(m,2Hx2,−OCOCHCH(CH12CH),1.56(b,2Hx2,−OCOCHCH(CH12CH),1.25(b,24Hx2,−OCOCHCH(CH12CH),0.88(t,3Hx2,J=7.0Hz,−OCOCHCH(CH12CH);MS(FAB):m/z calcd for C629610Na[M+Na]1023.7.
化合物7dの合成:化合物7d(一般式(VII)において、単糖部分はガラクトース由来、グリシドール由来の部分は(R)−グリシドール由来、Yはベンジル基、Rは炭素数15のアルキル基である化合物)の合成は、出発物質としてメチルガラクトシド、化合物3から4を合成する反応において(R)−グリシドールを用いて合成した。他の反応は化合物7aと同様の反応にて行った。最終的な収率も同程度であった。
7d:[α]D33+8.42(c 1.0,CHCl);IR(KBr film):3411,2924,2853,1741,1587,1460,1350,1150,1054,697cm−1H−NMR(500MHz,CDCl):δ7.40〜7.23(m,5Hx3,−CH),5.23(m,1H,glycerol H−2),4.96〜4.63(d,2Hx3,−CH),4.87(d,1H,J=3.5Hz,H−1),4.41(dd,1H,J=3.5 and 12.0Hz,glycerol H−3proR),4.14(dd,1H,J=6.5 and 12.0Hz,glycerol H−3proS),4.05(dd,1H,J=3.5 and 10.0Hz,H−2),3.90(dd,1H,H−3),3.90 abd 3.69(b,2H,H−6proR and H−6proS),3.76(bt,1H,J=5.5 and 6.0Hz,H−4),3.72(dd,1H,J=5.0 and 11.0Hz,glycerol H−1proS),3.62(dd,1H,J=6.0 and 11.0Hz,glycerol H−1proR),3.47(m,1H,H−5),2.28(b,2Hx2,−OCOCHCH(CH12CH),1.57(b,2Hx2,−OCOCHCH(CH12CH),1.25(b,24Hx2,−OCOCHCH(CH12CH),0.88(t,3Hx2,J=7.0Hz,−OCOCHCH(CH12CH);MS(FAB);m/z calcd for C629610Na[M+Na]1023.7.

Figure 0005212973
(合成例2)
・第1段階
化合物7a(合成例1の最終生成物。化合物7b、7c、7dについても同様に以下の反応に供することができ、その場合に、単糖由来部分やグリシドール由来の部分の構造が化合物7b、7c、7d由来の構造をもつ化合物が合成される。)を出発原料とし、ホスホロアミダイト法を用いて、セリノール部分となる化合物8(合成例3にて合成法を後述する)をリン酸トリエステルを介して導入する反応を行い、化合物9を合成する。続いて、化合物9のセリノール基の保護を酸により脱保護して、化合物10(一般式(XII)に相当:Yはベンジル基、Rは炭素数15のアルキル基、Qは2−シアノエチル基、立体構造は図示の通り)を合成する。
・第2段階
化合物10に対して、ホスホロアミダイト法を用いて、2−ブロモエタノールをリン酸トリエステルを介して導入する反応を行い、化合物11(一般式(XIII)に相当:Yはベンジル基、Rは炭素数15のアルキル基、Qは2−シアノエチル基、XはBr、立体構造は図示の通り)を合成する。
・第3段階
化合物11に対して、トリメチルアミン水溶液を有機溶媒中で反応させることにより、化合物12を合成する。
・第4段階
最後に、糖の水酸基の脱保護とアジドの還元を行うことにより、化合物13(一般式(XIV)に相当:Rは炭素数15のアルキル基)を合成する。
Figure 0005212973
(合成)
化合物10の合成:脱水処理した2口ナスフラスコに化合物7a(200mg,0.20mmol)と2−シアノエチル−N,N,N’,N’−テトライソプロピルホスホロジアミジド(72.3mg,0.24mmol,1.2equiv)をジクロロメタン10mLに溶解させてシリンジで注入し、1H−テトラゾール(28.0mg,0.40mmol,2.0equiv)を加えて、室温で1.5時間攪拌させた。反応中、モレキュラーシーブ(MS3A)などを加えることもできる。
次に1H−テトラゾール(9.1mg,0.13mmol,0.65equiv)と化合物8(215.7mg,0.6mmol,3.0equiv)を加え、室温で1.5時間攪拌した。続いて水(約1mL)を加えた後、m−クロロ過安息香酸(リンの酸化剤として添加している。mCPBA(51.5mg,0.30mmol,1.5equiv)を0℃で加え、室温で10分攪拌した。反応終了後、反応溶液を10%亜硫酸ナトリウム水溶液、重曹水、水、食塩水で洗浄し、乾燥、濃縮して、得られた残渣をシリカゲルカラムクロマトグラフィーによって精製し、シロップ状の化合物9を得た。
この化合物9をジクロロメタン10mLに溶解し、ジクロロ酢酸(トリフルオロ酢酸でも可)を最終的に4mL加えて室温で磁気撹拌した。反応の進行状況はTLCによって追跡した。反応終了後、溶液を重曹水および食塩水で洗浄し、乾燥、濃縮し、得られた残渣をシリカゲルカラムクロマトグラフィーで精製し、シロップ状の化合物10を得た。収量141mg、収率57%。構造の確認はIR,H−NMR,FAB−MSで行った。
化合物10:IR(KBr):2925,2856,2119,1739,1457,1253,1157,1025,748,701cm−1H−NMR(500MHz,rt,CDCl):d7.257.35(m,5Hx3,−Bn),5.23(m,1H,Glycerol H−2),4.97,4.91,4.80,4,74,4.63,and 4.61(dx6,2Hx3,−Bn),4.75(d,1H,J=3.5Hz,H−1),4.38 and 4.22(dd,2H,Glycerol H−3),4.28 and 4.23(mx2,2H,H−6),4.25(m,2H,POCHCHNCHOH),4.18(m,2H,POCHCHCN),3.96(t,J=9.0,9.0Hz,1H,H−3),3.78(m,1H,H−5),3.73 and 3.52(ddx2,2H,Glycerol H−1),3.69(m,2H,POCHCHNCHOH),3.65(m,1H,POCHCHNCHOH),3.51(dd,J=3.5 and 10Hz,H1,H−2),3.49(dd,J=9.5 and 9.5Hz,1H,H−4),2.70(t,2H,POCHCHCN),2.29(m,4H,OCOCHCH(CH12CH),1.59(b,4H,OCOCHCH(CH12CH),1.25(s,48H,OCOCHCH(CH12CH),0.88(t,6H,OCOCHCH(CH12CH);MS(FAB);1256[M+1]
化合物11の合成:脱水処理した2口ナスフラスコに、化合物10(300mg,0.25mmol)と2−シアノエチル−N,N,N’,N’−テトライソプロピルホスホロジアミジド(119mg,0.38mmol,1.5equiv)をジクロロメタン10mLに溶解させてシリンジで注入し、1H−テトラゾール(35mg,0.50mmol,2.0equiv)を加えて、室温で1.5時間攪拌させた。次に1H−テトラゾール(11mg,0.16mmol,0.65equiv)と2−ブロモエタノール(62mg,0.50mmol,2.0equiv)とを加え、室温で1.5時間攪拌した。
続いて水(約1mL)を加えた後、m−クロロ過安息香酸(65mg,0.38mmol,1.5equiv)を0℃で加え、室温で10分攪拌した。反応終了後、反応溶液を10%亜硫酸ナトリウム水溶液、重曹水、水、食塩水で洗浄し、乾燥、濃縮して、得られた残渣をシリカゲルカラムクロマトグラフィーによって精製し、シロップ状の化合物11を得た。
収量240mg、収率71%。構造の確認はIR,1H−NMR,FAB−MSで行った。
化合物11:IR(KBr):2923,2853,2121,1738,1497,1455,1416,1359,1339,1276,1157,1072,1009,889,737cm−1H−NMR(500MHz,rt,CDCl):d7.257.35(m,5Hx3,−Bn),5.23(m,1H,Glycerol H−2),4.93,4.83,4.79,4,74,4.72,and 4.62(dx6,2Hx3,−Bn),4.75(d,1H,J=3.5Hz,H−1),4.37 and4.2(dd,2H,Glycerol H−3),4.3(m,2Hx2,POCHCHNCHOP),4.2(mx2,2H,H−6),4.2(m,2Hx2,POCHCHCN),3.94(dd,J=9.0,9.5Hz,1H,H−3),3.92(m,1H,POCHCHNCHOP),3.75(m,1H,H−5),3.75 and 3.52(ddx2,2H,Glycerol H−1),3.56(m,2H,POCHCHBr),3.51(dd,J=3.5 and 9.5Hz,H1,H−2),3.51(dd,1H,H−4),2.72.8(t,2Hx2,−POCHCHCN),2.29(m,4H,OCOCHCH(CH12CH),1.59(b,4H,OCOCHCH(CH12CH),1.25(s,48H,OCOCHCH(CH12CH),0.88(t,6H,OCOCHCH(CH12CH);FAB−MS:1474[M+Na],1476[M+2+Na]
化合物12の合成:化合物12(240mg)を10mLのアセトニトリル:イソプロパノール:クロロホルム=1.5:1.5:0.9溶液に溶解し、30%トリメチルアミン(目的物に対応する構造をもつアミン。最終生成物の構造に応じて選択する)水溶液を4mL加えて室温で30時間時期攪拌した。なお、ここで、用いた溶媒の混合比は、化合物11を溶解させ、またトリメチルアミン水溶液も溶解させるための混合比である。DMFを使用することもできる。DMFを使うと、トリメチルアミンの溶解性が上がり望ましい。
反応溶液を濃縮し、残渣をカラムクロマトグラフィーにより精製し、化合物12を得た。収量157mg、収率71%。構造の確認はIR,H−NMR,FAB−MSで行った。
化合物12:IR(KBr):3404,2923,2853,2110,1739,1496,1454,1360,1244,1158,1087,1070,1028,969,874,824,740cm−1H−NMR(500MHz,rt,CDCl):d7.257.35(m,15H,−Bn),5.24(m,1H,Glycerol H−2),4.93,4.84,4.79,4,77,4.72,and 4.65(dx6,6H,−Bn),4.78(d,J=3.5Hz,1H,H−1),4.40 and 4.18(dd,2H,Glycerol H−3),4.28(m,2H,POCHCH(CH),4.28(m,4H,POCHCH(N)CHOP),4.15 and 4.09(m 2,2H,H−6),3.96(b,1H,H−3),3.78(m,1H,H−5),3.79 and 3.55(ddx2,2H,Glycerol H−1),3.66(m,1H,POCHCH(N)CHOP),3.63(m,2H,POCHCH(CH),3.62(b,1H,H−4),3.50(dd,J=3.5 and 10Hz,H1,H−2),3.21(s,9H,POCHCH(CH),2.28(m,4H,OCOCHCH(CH12CH),1.59(b,4H,OCOCHCH(CH12CH),1.25(s,48H,OCOCHCH(CH12CH),0.88(t,6H,OCOCHCH(CH12CH);FAB−MS:1046[M+1]
化合物13の合成:化合物12(157mg)を30mLのメタノールに溶解して酢酸20μLを加えた。水酸化パラジウムカーボン(100mg)を加えて水素雰囲気下で約8時間室温で磁気撹拌した。反応後、パラジウムを濾過によりのぞき、濃縮した残渣をイアトロビーズカラムクロマトグラフィーによって精製し、化合物13を得た。収量77mg、収率64%。構造の確認はIR,1H−NMR,FAB−MSで行った。
化合物13:IR(KBr):3269,2918,2851,1736,1641,1549,1467,1415,1378,1343,1223,1154,1053,1022,968,871,825,765,719cm−1H−NMR(500MHz,rt,CDCl):δ5.24(m,1H,Glycerol H−2),4.81(d,J=3.5Hz,1H,H−1),4.41 and 4.16(dd,2H,Glycerol H−3),4.31(m,2H,POCHCH(CH),4.204.27(b,4H,POCHCH(NH)CHOP),4.154.09(m 2,2H,H−6),3.95(t,1H,H−3),3.77 and 3.61(ddx2,2H,Glycerol H−1),3.57(m,1H,POCHCH(NH)CHOP),3.68(m,2H,POCHCH(CH),3.413.48(b,1H,H−4),3.413.48(dd,J=3.5 and 10Hz,H1,H−2),3.21(s,9H,POCHCH(CH),2.30(m,4H,OCOCHCH(CH12CH),1.59(b,4H,OCOCHCH(CH12CH),1.26(s,48H,OCOCHCH(CH12CH),0.88(t,6H,OCOCHCH(CH12CH);FAB−MS:1049[M+1]
(合成例3)
・第一段階
(R)−グリシドールの水酸基をトリチル基(トリフェニルメチル基:Tr−)で保護し(化合物14)、p−メトキシフェノールのナトリウム塩でエポキシを開環して化合物15(一般式(III)に相当)を合成する。反対の立体構造の化合物(一般式(IV)に相当)を得る場合には(R)−グリシドールに代えて、(S)−グリシドールを使用する。
・第2段階
化合物15の2位の水酸基をメシル化、アジド化し、化合物17を合成する。
・第3段階
化合物17におけるp−メトキシフェニル基のみを弱い酸性条件化で脱保護することにより化合物8を合成する。
Figure 0005212973
(合成)
化合物15の合成:脱水処理した反応系において(R)−グリシドール(5g)をジクロロメタン200mLに溶解させ、トリエチルアミン47mLを加えた。トリチルクロライドを0℃で加えて約12時間0℃で攪拌した。
反応溶液を洗浄、乾燥、濃縮し、残渣をシリカゲルカラムクロマトグラフィーで粗精製し、化合物14とトリチルアルコールの混合物を得た。この混合化合物をDMF500mLに溶解し、p−メトキシフェノールナトリウム塩54gを加えて100℃約7時間攪拌した。目的物を有機層に抽出し、洗浄、乾燥、濃縮し、得られた残査をシリカゲルカラムクロマトグラフィーで精製し、化合物15を得た。収量23.8g、収率80%。
化合物15:[α]D25−3.0(c 0.11,CHCl).IR(KBr)1504,1448,1226,1033,804,703,630,505cm−1H−NMR(200MHz,rt,CDCl)d7.3 and 7.45(mx2,15H,−Tr),6.85(s,4H,pMP),4.15(m,1H,H2),4.00 and 4.05(ddx2,2H,H1),3.8(s,3H,pMP),3.35(dd,2H,H3).EI−MS 440[M].
化合物16の合成:化合物15(23.8g)をジクロロメタン400mLに溶解し、トリエチルアミン37.7mLを加えた。この溶液を0℃に冷却しメタンスルホニルクロリド(6.27mL)を滴下し、室温で約5時間攪拌した。溶液を洗浄、乾燥、濃縮し、残査をシリカゲルカラムクロマトグラフィーで精製し、化合物16を得た。収量27.4g、収率98%。
化合物16:[a]D26−6.2(c 0.46,CHCl).IR(KBr)3056,2940,2832,1504,1355,1230,1174,1095,1037,970,929,821,763,705,634,528cm−1H−NMR(200MHz,rt,CDCl)d7.3 and 7.45(mx2,15H,−Tr),6.85(s,4H,pMP),5.0(m,1H,H2),4.1(ddx2,2H,H1),3.75(s,3H,pMP),3.5(m,2H,H3),3.1(s,3H,−Ms).EI−MS:518[M].
化合物17の合成:化合物16(27.4g)をDMF400mLに溶解し、アジ化ナトリウム(17.2g)を加えて100℃で約時間攪拌した。目的物を有機層に抽出し、洗浄、乾燥、濃縮して、得られた残渣をシリカゲルカラムクロマトグラフィーによって精製した。収量23.3g、収率92%。
化合物17:IR(KBr)2940,2098,1590,1502,1226,1074,1033,827,750,701,630,511cm−1H−NMR(500MHz,rt,CDCl)d7.3 and 7.45(mx2,15H,−Tr),6.85(s,4H,pMP),4.05(ddx2,2H,H1),3.80(m,1H,H2),3.75(s,3H,pMP),3.35(s,2H,H3).EI−MS 465[M].
化合物8の合成:化合物17(23.3g)をCH2CN:CH3OH:H2O=4:1:1の溶液750mLに溶解し、silver(II)dipicolinate(110.6g)を加えて約3時間室温で攪拌した。反応終了後、セライト濾過によりピコリン酸を除去し、目的物を有機層に抽出し、洗浄、乾燥、濃縮し、得られた残渣をシリカゲルカラムクロマトグラフィーにより精製した。収量9.0g、収率50%。
化合物8:[a]D26+6.35(c 1.0,CHCl).IR(KBr)3424,3060,2931,2877,2100,1488,1328,1270,1220,1081,1031,759,701,634cm−1H−NMR(500MHz,rt,CDCl)d7.3 and 7.45(mx2,15H,−Tr),3.60(m,1H,H2),3.5(m,2H,H1),3.25(dd,2H,H3).なお、光学純度については、不斉誘導体化試薬TBMBカルボン酸を用いて不斉誘導体化し、その1H−NMRのスペクトルから>99%eeであることを確認した。
(合成例4)
上述した合成方法のほか以下の方法によっても目的の糖脂質誘導体を製造することができる。具体的には化合物4a及び4bから化合物7に至る合成経路を以下の方法に置き換えるものである。
Figure 0005212973
本合成方法について特徴となる部分について以下に、説明する。
化合物19から化合物20:イソプロピリデン基を酸性条件で選択的に脱保護する反応である。糖の6位のシリル基も酸性条件によって脱離するため、シリル基の中ではもっとも酸性条件に強いものの一つであるTBDPS基(tert−butyldiphenylsilyl基)を用いることによりグリセロール部分に保護基として導入したイソプロピリデン基との差異を発現させた。
また、適当な酸性条件を実現する試薬を検討したところオルガノ株式会社製のAmberlyst15が有効であり、これを用いることによってイソプロピリデン基のみを選択的に脱保護することができた。
化合物21から化合物7:TBDPS基をフッ化物イオンにより脱保護する反応である。上記のようにTBDPS基は酸性条件による加水分解でも脱保護が可能である。しかし、TBDPS基の脱保護にはかなり強い酸性条件が要求される。化合物21には不安定な脂肪酸部分のアシル基があり、TBDPS基を脱保護するような強い酸性条件ではこのアシル基部分が耐えられない可能性があった。よって、フッ化物イオンによる脱保護を検討した。
シリル系保護基の脱保護にもっともよく利用されるのはTBAF(tetrabutylammonium fluoride)である。TBAF意外にも、よりマイルドな試薬としてTBAHF(Tributylamine Hydrofluoride,Ref.Furusawa,K.The Chemical Society of Japan,1989,509.)が開発されており、TBAHFを化合物21に対して適用・検討したところ、TBAFを用いた場合よりも副生成物が生じることなく反応はほぼ完全に進行し、化合物7を得ることができた。
化合物18の合成:
化合物3(2.0g)から合成例1に記述の方法により合成した粗精製物4−a+4−bをDMF(50mL)に溶解し、100℃付近まで加熱した。CsOAc(3.90g)を加え、100℃で約3時間攪拌した。目的物を酢酸エチル層に抽出し、食塩水で洗浄、乾燥、濃縮した。次に得られた残査をメタノール(100mL)に溶解し、KCO(617mg)を加えて約1時間時期攪拌した。反応終了後、溶液をアンバーリストにより中和した後、アンバーリストを濾過により取り除いてろ液を濃縮した。次に得られた残査をアセトン(300mL)に溶解し、P−トルエンスルホン酸(p−TsOH;1.0g)を加えて室温で約30分磁気攪拌した。溶液にトリエチルアミンを加えて反応を停止した後、3分の1程度濃縮して、残りの溶液を分液洗浄、乾燥、濃縮し、残査をシリカゲルカラムクロマトグラフィーで精製した。収量1.40g、収率61%(化合物3から4ステップ)。白色ワックス状。
[α] 28=+30.3(c 1.0,CHCl);IR(KBr film)ν/cm−1:3482,3314,3030,2985,2920,2853,1642,1455,1370,1212,1156,1070,1028,912,839,738,698,614,516,547,417;H−NMR(500MHz,CDCl)δ7.407.25(m,5Hx3,−CH ),4.984.63(d,2Hx3,−C ),4.82(d,1H,J=3.5Hz,H−1),4.36(t,1H,J=6.0Hz,glycerol H−2),4.07 and 3.73(dd,1Hx2,J=6.5 and 7.5,J=6.0 and 7.5Hz,glycerol H−1proR or H−1proS),3.98(dd,1H,J=9.0 and 9.5Hz,H−3),3.76 and 3.69(m,2H,H−6proR and proS),3.70(m,1H,H−5),3.60 and 3.55(dd,1Hx2,J=5.5 and 10.5,J=6.0 and 10.5Hz,glycerol H−3proS or H−3proR),3.52(dd,1H,J=9.0 and 9.5Hz,H−4),3.51(dd,1H,J=3.5 and 9.5Hz,H−2),1.43 and 1.37(s,3Hx2,isopropyl);HRMS(FAB):m/z calcd.for C3340Na[M+Na]587.2621;found 587.2639.
化合物7の合成
化合物18(1.40g)をピリジン(20mL)に溶解しジメチルアミノピリジン(DMAP)を触媒量加えた溶液に、氷浴中でTBDPSCl(1.08mL)を滴下して加え、室温で約17時間時期攪拌した。メタノールを加えて試薬を分解した後、トルエンとの共沸操作によりピリジンを除去した残査を1N HCl aq.NaHCOaq.NaClaq.で順次洗浄し、乾燥、濃縮し、シロップ状の化合物19を得た。
次にこの化合物19をクロロホルム(25mL)−メタノール(12mL)混合溶媒に溶解し、アンバーリスト(Amberlyst15,オルガノ株式会社製)(700mg)を加えて室温で磁気攪拌した。濾過によりAmberlystを取り除き、ろ液をトリエチルアミンで中和後、濃縮して、シロップ状の化合物20を得た。次に化合物20をピリジン(20mL)に溶解し、触媒量のDMAPを加え、氷浴中にてパルミチン酸Cl(2.02mL)を加え、室温で約5時間磁気攪拌した。メタノールを加えることにより試薬を分解した後、共沸操作によりピリジンを除去した残査を1N HCl aq. NaHCOaq.NaCl aq.で洗浄、乾燥、濃縮し、シロップ状の化合物21を得た。次に化合物20をTHF(200mL)に溶解し、調整した2M TBAHF/THF solution(全量200mL)を加え、室温で時期攪拌した。反応の進行状況を確認しながら適宜TBAHF溶液を追加した。反応は24時間で終了し、目的物を酢酸エチル層に抽出してNaHCOaq.NaCl aq.で洗浄、乾燥、濃縮し、残査をシリカゲルカラムクロマトグラフィーで精製して白色ろう状の化合物7を得た。収量1.70g(α体のみの分取量)、収率68%(化合物18より4ステップ)。
化合物19(無色シロップ状):[α] 31=+19.1(c 1.0,CHCl);IR(KBr film)ν/cm−1:3031,2986,2929,2858,1733,1455,1427,1365,1256,1212,1155,1107,825,736,701,613,505;H−NMR(500MHz,CDCl)δ7.657.7,7.247.43,7.25(m,5Hx5,−CH and diphenyl group of TBDFPS),4.984.59(d,2Hx3,−C ),4.90(d,1H,J=3.5Hz,H−1),4.34(t,1H,J=6.0Hz,glycerol H−2),3.98(dd,1H,J=9.0 and 9.5Hz,H−3),3.86(d,1Hx2,H−6 proR and pros),3.70(m,1H,H−5),4.04 and 3.68(dd,1Hx2,J=6.0 and 8.0,J=2.5 and 8.0Hz,glycerol H−1proR or H−1proS),3.62(dd,1H,J=9.0 and 10.0Hz,H−4),3.57 and 3.56(dd,1Hx2,J=6.0 and 11.0,J=5.0 and 11.0Hz,glycerol H−3proS or H−3proR),3.56(dd,1H,J=3.5 and 9.5Hz,H−2),1.40 and 1.34(s,3Hx2,isopropyl),1.04(s,9H,t−butyl group of TBDPS);HRMS(FAB):m/z calcd.for C4958SiNa[M+Na]825.3799;found 825.3798.
化合物20(無色シロップ状):[α] 31=+15.3(c 1.0,CHCl);IR(KBr film)ν/cm−1:3432,3301,3032,2928,2858,1733,1454,1426,1359,1210,1156,1069,823,736,700,615,504,419;H−NMR(500MHz,CDCl)δ7.657.7,7.247.43,7.25(m,5Hx5,−CH and diphenyl group of TBDFPS),4.934.59(d,2Hx3,−C ),4.76(d,1H,J=3.5Hz,H−1),3.98(dd,1H,J=9.0 and 9.5Hz,H−3),3.85(m,1Hx2,H−6 proR and pros),3.75(m,1H,H−5),3.79 and 3.43(ddx2,1Hx2,J=3.5 and 10.5,J=7.0 and 10.5Hz,glycerol H−3proR or H−3proS),3.63(dd,1H,J=9.0 and 9.50Hz,H−4),3.70 and3.58(mx2,1Hx2,glycerol H−1proS or H−1proR),3.56(dd,1H,J=3.5 and 9.5Hz,H−2),2.27(dd,1H,J=5.5 and 7.5Hz,glycerol H−2),1.04(s,9H,t−butyl group of TBDPS);HRMS(FAB):m/z calcd.for C4654SiNa[M+Na]785.3486;found 785.3483.
化合物21(無色シロップ状):[α] 27=+14.6(c 1.0,CHCl);IR(KBr film)ν/cm−1:3031,2925,2854,1743,1459,1427,1361,1157,1108,823,736,701,611,504;H−NMR(500MHz,CDCl)δ7.657.7,7.247.43,7.25(m,5Hx5,−CH and diphenyl group of TBDFPS),5.23(m,1H,glycerol H2),4.944.61(d,2Hx3,−C ),4.79(d,1H,J=3.5Hz,H−1),4.39(dd,1H,J=4.0 and 12.0Hz,glycerol H−1proS),4.15(dd,1H,J=6.0 and 12.0Hz,glycerol H−1proR),3.97(dd,1H,J=9.0 and 9.5Hz,H−3),3.85(m,1H,H−5),3.85 and3.67(m,1Hx2,H−6proR and proS),3.72(dd,1H,J=6.0 and 10.5Hz,glycerol H−3proR),3.67(m,1H,H−4),3.55(dd,1H,J=3.5 and 9.5Hz,H−2),3.53(dd,1H,J=5.5 and 10.5Hz,glycerol H−3proS),2.24(m,2Hx2,−OCOCHCH(CH12CH),1.54(b,2Hx2,−OCOCHCH(CH12CH),1.25(b,24Hx2,−OCOCHCH(CH12CH),1.04(s,9H,t−butyl group of TBDPS),0.88(t,3Hx2,J=7.0Hz,−OCOCHCH(CH12CH);HRMS(FAB):m/z calcd.for C7811410SiNa[M+Na]1261.8079;found 1261.8087. (Synthesis Example 1)
  D-glucose (corresponding to the compound of general formula (VIII): from D-glucose (methylated at the 1-position OH group) by the method shown in the following reaction formula: the monosaccharide part is derived from glucose, and the part derived from glycidol is ( S) -glycidol, Y is a benzyl group, and R is an alkyl group having 15 carbon atoms). The outline of the reaction is described below.
  In addition, compounds 7b, 7c, and 7d can be synthesized by changing the compounds used in some of the following steps.
  ・ First stage
  Methyl glucoside is used as a starting material, and the 2, 3, 4, and 6 positions are protected with an ether-based protecting group. By dissolving this compound in acetic anhydride and adding an acid catalyst thereto, the hydroxyl groups at the 1- and 6-positions are acetylated. Further, only the acetyl group at the 1-position is deprotected to obtain compound 3 (corresponding to the donor compound in novel synthesis method 1 of (1) described above). Here, when galactose is employed as a donor compound, a final product having a corresponding three-dimensional structure is obtained (see the following reaction formula).
  ・ Second stage
  The novel synthesis method 1 using compound 3 as a donor compound and optically active (S) -glycidol as an acceptor compound is performed to synthesize compound 4 having a key steric skeleton. Here, when (R) -glycidol is adopted as an acceptor compound, a final product having a corresponding steric structure is obtained (see the following reaction formula).
  ・ 3rd stage
  Compound 4 (mixture of compound 4-a and compound 4-b; equivalent to compound of general formula (X): OH group at 6-position is acetyl group, OH group at 2-4 position is benzyl group, X is Br) After deprotecting the protecting group at the 6-position hydroxyl group of the sugar, a fatty acid is introduced into the sn-1 position of glycerol.
  ・ Fourth stage
  Compound 7a is synthesized by protecting the 6-position hydroxyl group (primary) of the sugar of compound 5 with a TBDMS group, introducing a fatty acid into the hydroxyl group (secondary) at the sn-2 position of glycerol, and then deprotecting the TBDMS group. To do.
(Synthesis)
  Synthesis of Compound 3: Methyl glucoside (10 g) was dissolved in 300 mL of DMF, NaH (12.4 g) was added at 0 ° C., and the mixture was stirred at 0 ° C. for 30 minutes. Thereafter, BnBr (53.9 mL) was added at 0 ° C., and the mixture was stirred at room temperature for 5 hours. After completion of the reaction, methanol was added to decompose the reagent, the target product was extracted into the organic layer, washed, dried and concentrated, and the residue was purified by chromatography using a silica gel column to obtain Compound 1.
  Compound 1 was dissolved in acetic anhydride (140 mL), sulfuric acid (120 μL) was added at 0 ° C., and the mixture was stirred at room temperature for about 3 hours. After the reaction, the solution was neutralized, the target product was extracted into an organic layer, washed, dried and concentrated, and the residue was purified by silica gel column chromatography to obtain compound 2.
  Compound 2 was dissolved in THF (100 mL), benzylamine (8.9 g) was added, and the mixture was stirred at room temperature for about 2 days. The solution was washed, dried and concentrated, and the residue was purified by silica gel column chromatography to obtain compound 3. Yield 16.1 g (α: β = 2: 1), syrupy, 59% yield (3 steps).
  1H-NMR (500 MHz, rt, CDCl3): A-anomer, dH7.25~7.35 (m, 5Hx3, -Bn), 5.20 (d, 1H, J = 3.5 Hz, H-1), 4.55~5.00 (d, 2Hx3, -CH2Ph), 4.27 (m, 2H, H-6), 4.10 (m, 1H, H-5), 4.00 (dd, 1H, J = 9.0 and 9.5 Hz, H-3) ), 3.56 (dd, 1H, J = 3.5 and 9.5 Hz, H-2), 3.50 (dd, 1H, J = 9.0 and 10.0 Hz, H-4), 2. 03 (s, 3H, -OAc); b-anomer, dH7.25~7.35 (m, 5Hx3, -Bn), 4.74 (d, 1H, J = 8.0 Hz, H-1), 4.55~5.00 (d, 2Hx3, -CH2Ph), 4.34 and 4.19 (dd, 2H, H-6), 3.96 (dd, 1H, J = 9.0 and 9.5 Hz, H-3), 3.55 (dd, 1H) , J = 8.0 and 9.5 Hz, H-2), 3.41 (dd, 1H, J = 7.5 and 9.0 Hz, H-4), 2.05 (s, 3H, -OAc) .
  Synthesis of Compound 4: Compound 3 (5.0 g) was dissolved in DMF and Ph3P (7.9 g) and CBr4(10 g) was added at 0 ° C., and the mixture was stirred at room temperature for 14 hours. After completion of the reaction, the target product was extracted with ethyl acetate, and this solution was washed, dried and concentrated.
  Ph contained in residue3P = 0 was crystallized from diethyl ether-hexane and removed by filtration. The filtrate was concentrated and the resulting residue was purified by silica gel column chromatography. Depending on the time and conditions, compound 4-b in which a part of the epoxy of compound 4-a was ring-opened with a bromoanion was produced. This was used in the next reaction as a mixture.
  Synthesis of Compound 5: The obtained residue was dissolved in methanol (200 mL), and K2CO3(1.5 g) was added and stirred for about 3 hours. After completion of the reaction, the solution was washed, dried and concentrated, and the resulting residue was dried in a vacuum atmosphere. Next, a solution obtained by dissolving the residue in 2 mL of DMF was added dropwise to a reaction solution in which palmitic acid Cs (36 g) was added to DMF (200 mL) and heated to 100 ° C. to 110 ° C. Stir for 1 hour.
  After completion of the reaction, the solution was cooled and ethyl acetate was added to precipitate unreacted palmitic acid Cs, which was removed by filtration. The obtained filtrate was washed, dried and concentrated, and the obtained residue was purified by a silica gel column. Yield 3.87 g, yield 50% (3 steps from compound 3).
  1H-NMR (500 MHz, CDCl3; DH7.40~7.23 (m, 5Hx3, -CH2C6H5), 4.96~4.64 (d, 2Hx3, -CH2C6H5), 4.73 (d, 1H, J = 3.5 Hz, H-1), 4.18 (dd, 1H, J = 4.5 and 12 Hz, glycerol H-1)proS), 4.13 (dd, 1H, J = 5.5 and 11.5 Hz, glycerol H-1proR), 4.05 (b, 1H, glycerol H-2), 3.98 (dd, 1H, J = 9.5 and 9.5 Hz, H-3), 3.76 (dd, 1H, J = 4) 0.0 and 10.5 Hz, glycerol H-3proR), 3.65~3.80 (b, 2H, H-6ProR  and H-6proS), 3.68 (m, 1H, H-5), 3.52 (dd, 1H, J = 9.0 and 9.5 Hz, H-4), 3.51 (dd, 1H, J = 3. 5 and 9.5 Hz, H-2), 3.40 (dd, 1H, J = 7.5 and 10.5 Hz, glycerol H-3proS), 2.34 (t, 2H, J = 7.5 Hz, -OCOCH2CH2(CH2)12CH3), 1.62 (b, 2H, -OCOCH2CH2(CH2)12CH3), 1.25 (b, 24H, -OCOCH2CH2(CH2)12CH3), 0.88 (t, 3H, J = 7.0 Hz, -OCOCH2CH2(CH2)12CH3).
  Synthesis of Compound 7a: Compound 5 (2.3 g) was dissolved in 140 mL of pyridine, N, N-dimethylaminopyridine (DMAP: catalytic amount) was added, TBDMSCl (676 mg) was further added, and the mixture was stirred at room temperature for about 12 hours. . After completion of the reaction, methanol was added to the solution and stirred for 12 hours to decompose the reagent, followed by concentration, and the residue was roughly purified by silica gel column chromatography. The obtained syrup was dissolved in pyridine (40 mL), DMAP (catalytic amount) was added, Cl palmitate (1.35 mL) was added dropwise, and the mixture was stirred at room temperature for about 3 hours.
  After completion of the reaction, methanol was added to the solution and stirred for 12 hours to decompose the reagent and then concentrated. A 30% trifluoroacetic acid-methanol: chloroform = 2: 1 solution (30 mL) was added to the residue, and the mixture was stirred for 30 minutes at room temperature. After completion of the reaction, the solution was concentrated, and the residue was purified by chromatography using a silica gel column. Yield 1.96 g, 65% yield.
[Α]D 22= +23.0 (c 0.27, CHCl3).1H-NMR (500 MHz, CDCl3; DH7.40~7.23 (m, 5Hx3, -CH2C6H5), 5.23 (b, 1H, glycerol H-2), 4.96.~4.64 (d, 2Hx3, -CH2C6H5), 4.70 (d, 1H, J = 3.5 Hz, H-1), 4.40 (dd, 1H, J = 4.0 and 12.0 Hz, glycerol H-1proS), 4.19 (dd, 1H, J = 6.0 and 12.0 Hz, glycerol H-1).proR), 3.96 (dd, 1H, J = 9.5 and 9.5 Hz, H-3), 3.72 (dd, 1H, J = 5.5 and 10.5 Hz, glycerol H-3)proR), 3.72 and 3.66 (b, 2H, H-6)ProR  and H-6proS), 3.65 (m, 1H, H-5), 3.54 (dd, 1H, J = 5.5 and 10.5 Hz, glycerol H-3)proS), 3.50 (dd, 1H, J = 9.5 and 10.0 Hz, H-4), 3.49 (dd, 1H, J = 3.5 and 9.5 Hz, H-2), 2. 29 (m, 2Hx2, -OCOCH2CH2(CH2)12CH3), 1.58 (b, 2Hx2, -OCOCH2CH2(CH2)12CH3), 1.25 (b, 24Hx2, -OCOCH2CH2(CH2)12CH3), 0.88 (t, 3Hx2, J = 7.0 Hz, -OCOCH2CH2(CH2)12CH3). MS (FAB); 1024 [M + Na]+.
  Synthesis of Compound 7b: Compound 7b (in the general formula (VII), the monosaccharide moiety is derived from glucose, the glycidol-derived moiety is derived from (R) -glycidol, Y is a benzyl group, and R is an alkyl group having 15 carbon atoms) ) Was synthesized using (R) -glycidol in the reaction of synthesizing compounds 3 to 4. Other reactions were carried out in the same manner as for compound 7a. The final yield was similar.
  7b: [α]D32= + 18.5 (c 1.0, CHCl3); IR (KBr film): 3452, 2924, 2854, 1739, 1586, 1455, 1296, 1159, 1095, 710 cm ̄1;1H-NMR (500 MHz, CDCl3): ΔH7.40 to 7.23 (m, 5Hx3, -CH2C6H5), 5.23 (b, 1H, glycerol H-2), 4.96 to 4.63 (d, 2Hx3, -CH2C6H5), 4.75 (d, 1H, J = 3.5 Hz, H-1), 4.38 (dd, 1H, J = 3.5 and 12.0 Hz, glycerol H-3)proR), 4.21 (dd, 1H, J = 6.5 and 12.0 Hz, glycerol H-3)proS), 3.96 (dd, 1H, J = 9.5 and 9.5 Hz, H-3), 3.73 (dd, 1H, J = 6.0 and 11.0 Hz, glycerol H-1)proS), 3.76 abd 3.66 (b, 2H, H-6)ProR  and H-6proS), 3.65 (m, 1H, H-5), 3.57 (dd, 1H, J = 5.5 and 11.0 Hz, glycerol H-1proR), 3.51 (dd, 1H, J = 9.5 and 10.0 Hz, H-4), 3.50 (dd, 1H, J = 3.5 and 9.5 Hz, H-2), 2. 29 (b, 2Hx2, -OCOCH2CH2(CH2)12CH3), 1.59 (b, 2Hx2, -OCOCH2CH2(CH2)12CH3), 1.25 (b, 24Hx2, -OCOCH2CH2(CH2)12CH3), 0.88 (t, 3Hx2, J = 7.0 Hz, -OCOCH2CH2(CH2)12CH3); MS (FAB): m / z calcd for C62H96O10Na [M + Na]+1023.7.
  Synthesis of Compound 7c: Compound 7c (In General Formula (VII), the monosaccharide moiety is derived from galactose, the glycidol-derived moiety is derived from (S) -glycidol, Y is a benzyl group, and is a C15 alkyl group) Was synthesized using methyl galactoside as a starting material. Other reactions were carried out in the same manner as for compound 7a. The final yield was similar.
  7c: [α]D33= + 18.8 (c 0.9, CHCl3); IR (KBr film): 3432, 2923, 2853, 1740, 1586, 1460, 1350, 1153, 1054, 697 cm-1;1H-NMR (500 MHz, CDCl3): ΔH7.40 to 7.23 (m, 5Hx3, -CH2C6H5), 5.25 (b, 1H, glycerol H-2), 4.96 to 4.63 (d, 2Hx3, -CH2C6H5), 4.83 (d, 1H, J = 3.5 Hz, H-1), 4.34 (dd, 1H, J = 3.5 and 12.0 Hz, glycerol H-1proS), 4.18 (dd, 1H, J = 6.0 and 12.0 Hz, glycerol H-1).proR), 4.05 (dd, 1H, J = 3.5 and 9.5 Hz, H-2), 3.90 (dd, 1H, H-3), 3.89 and 3.68 (b, 2H, H-6proR  and H-6proS), 3.73 (bt, 1H, J = 5.5 and 6.0 Hz, H-4), 3.71 (dd, 1H, J = 5.5 and 10.5 Hz, glycerol H-3)proR), 3.58 (dd, 1H, J = 6.0 and 10.5 Hz, glycerol H-3)proS), 3.47 (m, 1H, H-5), 2.28 (m, 2Hx2, -OCOCH)2CH2(CH2)12CH3), 1.56 (b, 2Hx2, -OCOCH2CH2(CH2)12CH3), 1.25 (b, 24Hx2, -OCOCH2CH2(CH2)12CH3), 0.88 (t, 3Hx2, J = 7.0 Hz, -OCOCH2CH2(CH2)12CH3); MS (FAB): m / z calcd for C62H96O10Na [M + Na]+1023.7.
  Synthesis of Compound 7d: Compound 7d (in the general formula (VII), the monosaccharide moiety is derived from galactose, the glycidol-derived moiety is derived from (R) -glycidol, Y is a benzyl group, and R is an alkyl group having 15 carbon atoms) ) Was synthesized using (R) -glycidol in a reaction of synthesizing methyl galactoside and compounds 3 to 4 as starting materials. Other reactions were carried out in the same manner as for compound 7a. The final yield was similar.
  7d: [α]D33+8.42 (c 1.0, CHCl3); IR (KBr film): 3411, 2924, 2853, 1741, 1587, 1460, 1350, 1150, 1054, 697 cm-1;1H-NMR (500 MHz, CDCl3): ΔH7.40 to 7.23 (m, 5Hx3, -CH2C6H5), 5.23 (m, 1H, glycerol H-2), 4.96 to 4.63 (d, 2Hx3, -CH2C6H5), 4.87 (d, 1H, J = 3.5 Hz, H-1), 4.41 (dd, 1H, J = 3.5 and 12.0 Hz, glycerol H-3)proR), 4.14 (dd, 1H, J = 6.5 and 12.0 Hz, glycerol H-3proS), 4.05 (dd, 1H, J = 3.5 and 10.0 Hz, H-2), 3.90 (dd, 1H, H-3), 3.90 abd 3.69 (b, 2H, H-6proR  and H-6proS), 3.76 (bt, 1H, J = 5.5 and 6.0 Hz, H-4), 3.72 (dd, 1H, J = 5.0 and 11.0 Hz, glycerol H-1proS), 3.62 (dd, 1H, J = 6.0 and 11.0 Hz, glycerol H-1proR), 3.47 (m, 1H, H-5), 2.28 (b, 2Hx2, -OCOCH)2CH2(CH2)12CH3), 1.57 (b, 2Hx2, -OCOCH2CH2(CH2)12CH3), 1.25 (b, 24Hx2, -OCOCH2CH2(CH2)12CH3), 0.88 (t, 3Hx2, J = 7.0 Hz, -OCOCH2CH2(CH2)12CH3MS (FAB); m / z calcd for C62H96O10Na [M + Na]+1023.7.
Figure 0005212973
  (Synthesis Example 2)
  ・ First stage
  Compound 7a (final product of Synthesis Example 1. Compounds 7b, 7c, and 7d can be similarly subjected to the following reaction. In this case, the structure of the monosaccharide-derived moiety or the glycidol-derived moiety is the compound 7b, 7c. And a compound having a structure derived from 7d is synthesized as a starting material, and phosphoryl ester of compound 8 (the synthesis method will be described later in Synthesis Example 3), which becomes a serinol moiety, using the phosphoramidite method. The compound 9 is synthesized by carrying out the reaction introduced via Subsequently, the protection of the serinol group of compound 9 was deprotected with an acid to give compound 10 (corresponding to general formula (XII): Y is a benzyl group, R is an alkyl group having 15 carbon atoms, Q is a 2-cyanoethyl group, The three-dimensional structure is synthesized as shown).
  ・ Second stage
  The compound 10 is subjected to a reaction by introducing 2-bromoethanol via a phosphoric acid triester using a phosphoramidite method, and the compound 11 (corresponding to the general formula (XIII): Y is a benzyl group, R is A C15 alkyl group, Q is a 2-cyanoethyl group, X is Br, and the three-dimensional structure is as shown).
  ・ 3rd stage
  Compound 12 is synthesized by reacting compound 11 with an aqueous trimethylamine solution in an organic solvent.
  ・ Fourth stage
  Finally, compound 13 (corresponding to general formula (XIV): R is an alkyl group having 15 carbon atoms) is synthesized by deprotecting the hydroxyl group of the sugar and reducing the azide.
Figure 0005212973
(Synthesis)
  Synthesis of Compound 10: Compound 7a (200 mg, 0.20 mmol) and 2-cyanoethyl-N, N, N ′, N′-tetraisopropylphosphorodiamidide (72.3 mg, 0.20 mmol) were added to a dehydrated two-necked eggplant flask. 24 mmol, 1.2 equiv) was dissolved in 10 mL of dichloromethane and injected with a syringe, 1H-tetrazole (28.0 mg, 0.40 mmol, 2.0 equiv) was added, and the mixture was stirred at room temperature for 1.5 hours. During the reaction, molecular sieve (MS3A) or the like can be added.
  Next, 1H-tetrazole (9.1 mg, 0.13 mmol, 0.65 equiv) and compound 8 (215.7 mg, 0.6 mmol, 3.0 equiv) were added, and the mixture was stirred at room temperature for 1.5 hours. Subsequently, water (about 1 mL) was added, and then m-chloroperbenzoic acid (added as an oxidizing agent for phosphorus. MCPBA (51.5 mg, 0.30 mmol, 1.5 equiv) was added at 0 ° C. After completion of the reaction, the reaction solution was washed with 10% aqueous sodium sulfite solution, aqueous sodium bicarbonate, water and brine, dried and concentrated, and the resulting residue was purified by silica gel column chromatography to obtain a syrup. A compound 9 was obtained.
  This compound 9 was dissolved in 10 mL of dichloromethane, and finally 4 mL of dichloroacetic acid (or trifluoroacetic acid was acceptable) was added and magnetically stirred at room temperature. The progress of the reaction was followed by TLC. After completion of the reaction, the solution was washed with aqueous sodium hydrogen carbonate and brine, dried and concentrated, and the resulting residue was purified by silica gel column chromatography to obtain syrupy compound 10. Yield 141 mg, 57% yield. Confirmation of the structure is IR,1H-NMR and FAB-MS were used.
  Compound 10: IR (KBr): 2925, 2856, 2119, 1739, 1457, 1253, 1157, 1025, 748, 701 cm-1;1H-NMR (500 MHz, rt, CDCl3): DH7.25~7.35 (m, 5Hx3, -Bn), 5.23 (m, 1H, Glycerol H-2), 4.97, 4.91, 4.80, 4, 74, 4.63, and 4.61 (Dx6, 2Hx3, -Bn), 4.75 (d, 1H, J = 3.5 Hz, H-1), 4.38 and 4.22 (dd, 2H, Glycerol H-3), 4.28 and 4.23 (mx2, 2H, H-6), 4.25 (m, 2H, POCH2CHN3CH2OH), 4.18 (m, 2H, POCH2CH2CN), 3.96 (t, J = 9.0, 9.0 Hz, 1H, H-3), 3.78 (m, 1H, H-5), 3.73 and 3.52 (ddx2, 2H) , Glycerol H-1), 3.69 (m, 2H, POCH2CHN3CH2OH), 3.65 (m, 1H, POCH2CHN3CH2OH), 3.51 (dd, J = 3.5 and 10 Hz, H1, H-2), 3.49 (dd, J = 9.5 and 9.5 Hz, 1H, H-4), 2.70. (T, 2H, POCH2CH2CN), 2.29 (m, 4H, OCOCH2CH2(CH2)12CH3), 1.59 (b, 4H, OCOCH2CH2(CH2)12CH3), 1.25 (s, 48H, OCOCH2CH2(CH2)12CH3), 0.88 (t, 6H, OCOCH2CH2(CH2)12CH3); MS (FAB); 1256 [M + 1]+.
  Synthesis of Compound 11: Compound 10 (300 mg, 0.25 mmol) and 2-cyanoethyl-N, N, N ′, N′-tetraisopropylphosphorodiamidide (119 mg, 0.38 mmol) were added to a dehydrated two-necked eggplant flask. , 1.5equiv) was dissolved in 10 mL of dichloromethane and injected with a syringe, 1H-tetrazole (35 mg, 0.50 mmol, 2.0equiv) was added, and the mixture was stirred at room temperature for 1.5 hours. Next, 1H-tetrazole (11 mg, 0.16 mmol, 0.65 equiv) and 2-bromoethanol (62 mg, 0.50 mmol, 2.0 equiv) were added, and the mixture was stirred at room temperature for 1.5 hours.
  Subsequently, water (about 1 mL) was added, m-chloroperbenzoic acid (65 mg, 0.38 mmol, 1.5 equiv) was added at 0 ° C., and the mixture was stirred at room temperature for 10 minutes. After completion of the reaction, the reaction solution was washed with 10% aqueous sodium sulfite solution, sodium bicarbonate water, water and brine, dried and concentrated, and the resulting residue was purified by silica gel column chromatography to obtain syrup-like compound 11 It was.
  Yield 240 mg, 71% yield. The structure was confirmed by IR, 1H-NMR, and FAB-MS.
  Compound 11: IR (KBr): 2923, 2853, 2121, 1738, 1497, 1455, 1416, 1359, 1339, 1276, 1157, 1072, 1009, 889, 737 cm-1;1H-NMR (500 MHz, rt, CDCl3): DH7.25~7.35 (m, 5Hx3, -Bn), 5.23 (m, 1H, Glycerol H-2), 4.93, 4.83, 4.79, 4, 74, 4.72, and 4.62. (Dx6, 2Hx3, -Bn), 4.75 (d, 1H, J = 3.5 Hz, H-1), 4.37 and~4.2 (dd, 2H, Glycerol H-3),~4.3 (m, 2Hx2, POCH2CHN3CH2OP),~4.2 (mx2, 2H, H-6),~4.2 (m, 2Hx2, POCH2CH2CN), 3.94 (dd, J = 9.0, 9.5 Hz, 1H, H-3), 3.92 (m, 1H, POCH2CHN3CH2OP), 3.75 (m, 1H, H-5), 3.75 and 3.52 (ddx2, 2H, Glycerol H-1), 3.56 (m, 2H, POCH2CH2Br), 3.51 (dd, J = 3.5 and 9.5 Hz, H1, H-2),~3.51 (dd, 1H, H-4), 2.7~2.8 (t, 2Hx2, -POCH2CH2CN), 2.29 (m, 4H, OCOCH2CH2(CH2)12CH3), 1.59 (b, 4H, OCOCH2CH2(CH2)12CH3), 1.25 (s, 48H, OCOCH2CH2(CH2)12CH3), 0.88 (t, 6H, OCOCH2CH2(CH2)12CH3FAB-MS: 1474 [M + Na]+, 1476 [M + 2 + Na]+.
  Synthesis of Compound 12: Compound 12 (240 mg) was dissolved in 10 mL of acetonitrile: isopropanol: chloroform = 1.5: 1.5: 0.9 solution, and 30% trimethylamine (an amine having a structure corresponding to the target product. Final. 4 mL of an aqueous solution was added and stirred at room temperature for 30 hours. In addition, the mixing ratio of the solvent used here is a mixing ratio for dissolving the compound 11 and also dissolving the trimethylamine aqueous solution. DMF can also be used. When DMF is used, the solubility of trimethylamine increases, which is desirable.
  The reaction solution was concentrated, and the residue was purified by column chromatography to give compound 12. Yield 157 mg, 71% yield. Confirmation of the structure is IR,1H-NMR and FAB-MS were used.
  Compound 12: IR (KBr): 3404, 2923, 2853, 2110, 1739, 1496, 1454, 1360, 1244, 1158, 1087, 1070, 1028, 969, 874, 824, 740 cm-1;1H-NMR (500 MHz, rt, CDCl3): DH7.25~7.35 (m, 15H, -Bn), 5.24 (m, 1H, Glycerol H-2), 4.93, 4.84, 4.79, 4, 77, 4.72, and 4.65. (Dx6, 6H, -Bn), 4.78 (d, J = 3.5 Hz, 1H, H-1), 4.40 and 4.18 (dd, 2H, Glycerol H-3), 4.28 ( m, 2H, POCH2CH2N+(CH3)3), 4.28 (m, 4H, POCH2CH (N3) CH2OP), 4.15 and 4.09 (m 2, 2H, H-6), 3.96 (b, 1H, H-3), 3.78 (m, 1H, H-5), 3.79. and 3.55 (ddx2, 2H, Glycerol H-1), 3.66 (m, 1H, POCH2CH (N3) CH2OP), 3.63 (m, 2H, POCH2CH2N+(CH3)3), 3.62 (b, 1H, H-4), 3.50 (dd, J = 3.5 and 10 Hz, H1, H-2), 3.21 (s, 9H, POCH2CH2N+(CH3)3), 2.28 (m, 4H, OCOCH2CH2(CH2)12CH3), 1.59 (b, 4H, OCOCH2CH2(CH2)12CH3), 1.25 (s, 48H, OCOCH2CH2(CH2)12CH3), 0.88 (t, 6H, OCOCH2CH2(CH2)12CH3FAB-MS: 1046 [M + 1]+.
  Synthesis of Compound 13: Compound 12 (157 mg) was dissolved in 30 mL of methanol and 20 μL of acetic acid was added. Palladium hydroxide carbon (100 mg) was added and magnetically stirred at room temperature for about 8 hours under hydrogen atmosphere. After the reaction, palladium was removed by filtration, and the concentrated residue was purified by iatrobead column chromatography to obtain Compound 13. Yield 77 mg, 64% yield. The structure was confirmed by IR, 1H-NMR, and FAB-MS.
  Compound 13: IR (KBr): 3269, 2918, 2851, 1736, 1641, 1549, 1467, 1415, 1378, 1343, 1223, 1154, 1053, 1022, 968, 871, 825, 765, 719 cm-1;1H-NMR (500 MHz, rt, CDCl3): ΔH5.24 (m, 1H, Glycerol H-2), 4.81 (d, J = 3.5 Hz, 1H, H-1), 4.41 and 4.16 (dd, 2H, Glycerol H-3) 4.31 (m, 2H, POCH2CH2N+(CH3)3), 4.20~4.27 (b, 4H, POCH2CH (NH3) CH2OP), 4.15~4.09 (m 2, 2H, H-6), 3.95 (t, 1H, H-3), 3.77 and 3.61 (ddx2, 2H, Glycerol H-1), 3.57 (m , 1H, POCH2CH (NH3) CH2OP), 3.68 (m, 2H, POCH2CH2N+(CH3)3), 3.41~3.48 (b, 1H, H-4), 3.41~3.48 (dd, J = 3.5 and 10 Hz, H1, H-2), 3.21 (s, 9H, POCH2CH2N+(CH3)3), 2.30 (m, 4H, OCOCH2CH2(CH2)12CH3), 1.59 (b, 4H, OCOCH2CH2(CH2)12CH3), 1.26 (s, 48H, OCOCH2CH2(CH2)12CH3), 0.88 (t, 6H, OCOCH2CH2(CH2)12CH3FAB-MS: 1049 [M + 1]+.
  (Synthesis Example 3)
  ·the first stage
  The hydroxyl group of (R) -glycidol is protected with a trityl group (triphenylmethyl group: Tr-) (compound 14), and the epoxy is opened with sodium salt of p-methoxyphenol to give compound 15 (general formula (III)). Equivalent). (S) -glycidol is used instead of (R) -glycidol when a compound having the opposite stereo structure (corresponding to the general formula (IV)) is obtained.
  ・ Second stage
  Compound 17 is synthesized by mesylating and azidating the hydroxyl group at the 2-position of compound 15.
  ・ 3rd stage
  Compound 8 is synthesized by deprotecting only the p-methoxyphenyl group in Compound 17 under weak acidic conditions.
Figure 0005212973
  (Synthesis)
  Synthesis of Compound 15: In the dehydrated reaction system, (R) -glycidol (5 g) was dissolved in 200 mL of dichloromethane, and 47 mL of triethylamine was added. Trityl chloride was added at 0 ° C., and the mixture was stirred at 0 ° C. for about 12 hours.
  The reaction solution was washed, dried and concentrated, and the residue was roughly purified by silica gel column chromatography to obtain a mixture of compound 14 and trityl alcohol. This mixed compound was dissolved in 500 mL of DMF, 54 g of p-methoxyphenol sodium salt was added, and the mixture was stirred at 100 ° C. for about 7 hours. The target product was extracted into an organic layer, washed, dried and concentrated, and the resulting residue was purified by silica gel column chromatography to obtain compound 15. Yield 23.8 g, yield 80%.
  Compound 15: [α]D25-3.0 (c 0.11, CHCl3). IR (KBr) 1504, 1448, 1226, 1033, 804, 703, 630, 505cm-1.1H-NMR (200 MHz, rt, CDCl3) DH7.3 and 7.45 (mx2, 15H, -Tr), 6.85 (s, 4H, pMP), 4.15 (m, 1H, H2), 4.00 and 4.05 (ddx2, 2H, H1), 3.8 (s, 3H, pMP), 3.35 (dd, 2H, H3). EI-MS 440 [M+].
  Synthesis of Compound 16: Compound 15 (23.8 g) was dissolved in 400 mL of dichloromethane, and 37.7 mL of triethylamine was added. The solution was cooled to 0 ° C., methanesulfonyl chloride (6.27 mL) was added dropwise, and the mixture was stirred at room temperature for about 5 hours. The solution was washed, dried and concentrated, and the residue was purified by silica gel column chromatography to obtain compound 16. Yield 27.4 g, yield 98%.
  Compound 16: [a]D26-6.2 (c 0.46, CHCl3). IR (KBr) 3056, 2940, 2832, 1504, 1355, 1230, 1174, 1095, 1037, 970, 929, 821, 763, 705, 634, 528 cm-1.1H-NMR (200 MHz, rt, CDCl3) DH7.3 and 7.45 (mx2, 15H, -Tr), 6.85 (s, 4H, pMP), 5.0 (m, 1H, H2), 4.1 (ddx2, 2H, H1), 3 .75 (s, 3H, pMP), 3.5 (m, 2H, H3), 3.1 (s, 3H, -Ms). EI-MS: 518 [M+].
  Synthesis of Compound 17: Compound 16 (27.4 g) was dissolved in 400 mL of DMF, sodium azide (17.2 g) was added, and the mixture was stirred at 100 ° C. for about an hour. The target product was extracted into an organic layer, washed, dried and concentrated, and the resulting residue was purified by silica gel column chromatography. Yield 23.3 g, 92% yield.
  Compound 17: IR (KBr) 2940, 2098, 1590, 1502, 1226, 1074, 1033, 827, 750, 701, 630, 511 cm-1.1H-NMR (500 MHz, rt, CDCl3) DH7.3 and 7.45 (mx2, 15H, -Tr), 6.85 (s, 4H, pMP), 4.05 (ddx2, 2H, H1), 3.80 (m, 1H, H2), 3 .75 (s, 3H, pMP), 3.35 (s, 2H, H3). EI-MS 465 [M+].
  Synthesis of Compound 8: Compound 17 (23.3 g) was dissolved in 750 mL of a CH2CN: CH3OH: H2O = 4: 1: 1 solution, and silver (II) dipicolinate (110.6 g) was added and stirred at room temperature for about 3 hours. did. After completion of the reaction, picolinic acid was removed by Celite filtration, the target product was extracted into an organic layer, washed, dried and concentrated, and the resulting residue was purified by silica gel column chromatography. Yield 9.0 g, yield 50%.
  Compound 8: [a]D26+6.35 (c 1.0, CHCl3). IR (KBr) 3424, 3060, 2931, 2877, 2100, 1488, 1328, 1270, 1220, 1081, 1031, 759, 701, 634 cm-1.1H-NMR (500 MHz, rt, CDCl3) D7.3 and 7.45 (mx2, 15H, -Tr), 3.60 (m, 1H, H2), 3.5 (m, 2H, H1), 3.25 (dd, 2H, H3). The optical purity was confirmed to be> 99% ee from the spectrum of 1H-NMR by asymmetric derivatization using an asymmetric derivatization reagent TBMB carboxylic acid.
  (Synthesis Example 4)
  In addition to the synthesis method described above, the target glycolipid derivative can also be produced by the following method. Specifically, the synthetic route from compounds 4a and 4b to compound 7 is replaced with the following method.
Figure 0005212973
    The parts that characterize this synthesis method will be described below.
  Compound 19 to Compound 20: Reaction in which the isopropylidene group is selectively deprotected under acidic conditions. Since the silyl group at the 6-position of the sugar is also eliminated under acidic conditions, it is introduced as a protective group into the glycerol moiety by using the TBDPS group (tert-butyldiphenylsilyl group), which is one of the most resistant to acidic conditions among the silyl groups. The difference with the isopropylidene group was expressed.
    Further, when a reagent that realizes an appropriate acidic condition was examined, Amberlyst 15 manufactured by Organo Corporation was effective, and by using this, only the isopropylidene group could be selectively deprotected.
  Compound 21 to Compound 7: Reaction in which the TBDPS group is deprotected with fluoride ions. As described above, the TBDPS group can be deprotected even by hydrolysis under acidic conditions. However, fairly strong acidic conditions are required for deprotection of the TBDPS group. Compound 21 has an acyl group of an unstable fatty acid moiety, and this acyl group moiety may not be able to withstand strong acidic conditions that deprotect the TBDPS group. Therefore, deprotection with fluoride ions was studied.
    TBAF (tetrabutylammonium fluoride) is most often used for the deprotection of silyl protecting groups. In addition to TBAF, TBAHF (Tributylamine Hydrofluoride, Ref. Furusawawa, K. The Chemical Society of Japan, 1989, 509.) has been developed as a milder reagent. As a result, the reaction proceeded almost completely with no by-product as compared with the case of using TBAF, and Compound 7 was obtained.
  Synthesis of compound 18:
Crude product 4-a + 4-b synthesized from compound 3 (2.0 g) by the method described in Synthesis Example 1 was dissolved in DMF (50 mL) and heated to around 100 ° C. CsOAc (3.90 g) was added, and the mixture was stirred at 100 ° C. for about 3 hours. The desired product was extracted into an ethyl acetate layer, washed with brine, dried and concentrated. Next, the obtained residue was dissolved in methanol (100 mL).2CO3(617 mg) was added and stirred for about 1 hour. After completion of the reaction, the solution was neutralized with amberlist, the amberlist was removed by filtration, and the filtrate was concentrated. Next, the obtained residue was dissolved in acetone (300 mL), P-toluenesulfonic acid (p-TsOH; 1.0 g) was added, and magnetically stirred at room temperature for about 30 minutes. The reaction was stopped by adding triethylamine to the solution, and the solution was concentrated by about one third. The remaining solution was separated, washed and concentrated, and the residue was purified by silica gel column chromatography. Yield 1.40 g, 61% yield (4 steps from compound 3). White waxy.
[Α]D 28= +30.3 (c 1.0, CHCl3); IR (KBr film) ν / cm-1: 3482, 3314, 3030, 2985, 2920, 2853, 1642, 1455, 1370, 1212, 1156, 1070, 1028, 912, 839, 738, 698, 614, 516, 547, 417;1H-NMR (500 MHz, CDCl3) ΔH7.40~7.25 (m, 5Hx3, -CH2C6 H 5 ), 4.98~4.63 (d, 2Hx3, -CH 2 C6H5), 4.82 (d, 1H, J = 3.5 Hz, H-1), 4.36 (t, 1H, J = 6.0 Hz, glycerol H-2), 4.07 and 3.73 (dd , 1Hx2, J = 6.5 and 7.5, J = 6.0 and 7.5 Hz, glycerol H-1proR  or H-1proS), 3.98 (dd, 1H, J = 9.0 and 9.5 Hz, H-3), 3.76 and 3.69 (m, 2H, H-6proR and proS),~3.70 (m, 1H, H-5), 3.60 and 3.55 (dd, 1Hx2, J = 5.5 and 10.5, J = 6.0 and 10.5 Hz, glycerol H-3proS  or H-3proR), 3.52 (dd, 1H, J = 9.0 and 9.5 Hz, H-4), 3.51 (dd, 1H, J = 3.5 and 9.5 Hz, H-2), 1. 43 and 1.37 (s, 3Hx2, isopropyl); HRMS (FAB): m / z calcd. for C33H40O8Na [M + Na+] 587.2621; found 58.72639.
Synthesis of compound 7
To a solution obtained by dissolving compound 18 (1.40 g) in pyridine (20 mL) and adding a catalytic amount of dimethylaminopyridine (DMAP), TBDPSCl (1.08 mL) was added dropwise in an ice bath, and the mixture was stirred at room temperature for about 17 hours. Stir for a period. After decomposing the reagent by adding methanol, the residue from which pyridine was removed by azeotropic operation with toluene was added to 1N HCl aq. NaHCO3aq. NaClaq. The solution was sequentially washed with, dried and concentrated to obtain a syrup-like compound 19.
  Next, this compound 19 was dissolved in a mixed solvent of chloroform (25 mL) -methanol (12 mL), Amberlyst (Amberlyst 15, manufactured by Organo Corporation) (700 mg) was added, and magnetically stirred at room temperature. Amberlyst was removed by filtration, and the filtrate was neutralized with triethylamine and then concentrated to obtain syrup-like compound 20. Next, compound 20 was dissolved in pyridine (20 mL), a catalytic amount of DMAP was added, and Cl palmitate (2.02 mL) was added in an ice bath, and magnetically stirred at room temperature for about 5 hours. After decomposing the reagent by adding methanol, the residue from which pyridine was removed by azeotropic operation was treated with 1N HCl aq. NaHCO3aq. NaCl aq. Wash, dry, and concentrate to obtain a syrupy compound 21. Next, compound 20 was dissolved in THF (200 mL), adjusted 2M TBAHF / THF solution (total amount 200 mL) was added, and the mixture was stirred at room temperature for a while. While confirming the progress of the reaction, a TBAHF solution was appropriately added. The reaction was completed in 24 hours, and the target product was extracted into an ethyl acetate layer and extracted with NaHCO 3.3aq. NaCl aq. The residue was purified by silica gel column chromatography to obtain a white waxy compound 7. Yield 1.70 g (amount of α form alone), yield 68% (4 steps from compound 18).
  Compound 19 (colorless syrup): [α]D 31= + 19.1 (c 1.0, CHCl3); IR (KBr film) ν / cm-1: 3031, 2986, 2929, 2858, 1733, 1455, 1427, 1365, 1256, 1212, 1155, 1107, 825, 736, 701, 613, 505;1H-NMR (500 MHz, CDCl3) ΔH7.65~7.7, 7.24~7.43, 7.25 (m, 5Hx5, -CH2C6 H 5   and diphenyl group of TBDFPS), 4.98.~4.59 (d, 2Hx3, -CH 2 C6H5), 4.90 (d, 1H, J = 3.5 Hz, H-1), 4.34 (t, 1H, J = 6.0 Hz, glycerol H-2), 3.98 (dd, 1H, J = 9.0 and 9.5 Hz, H-3), 3.86 (d, 1Hx2, H-6 proR and pros),~3.70 (m, 1H, H-5), 4.04 and 3.68 (dd, 1Hx2, J = 6.0 and 8.0, J = 2.5 and 8.0 Hz, glycerol H-1proR  or H-1proS), 3.62 (dd, 1H, J = 9.0 and 10.0 Hz, H-4), 3.57 and 3.56 (dd, 1Hx2, J = 6.0 and 11.0, J = 5) 0.0 and 11.0 Hz, glycerol H-3proS  or H-3proR), 3.56 (dd, 1H, J = 3.5 and 9.5 Hz, H-2), 1.40 and 1.34 (s, 3Hx2, isopropyl), 1.04 (s, 9H, t− butyl group of TBDPS); HRMS (FAB): m / z calcd. for C49H58O8SiNa [M + Na+] 825.3799; found 825.3798.
  Compound 20 (colorless syrup): [α]D 31= + 15.3 (c 1.0, CHCl3); IR (KBr film) ν / cm-1: 3432, 3301, 3032, 2928, 2858, 1733, 1454, 1426, 1359, 1210, 1156, 1069, 823, 736, 700, 615, 504, 419;1H-NMR (500 MHz, CDCl3) ΔH7.65~7.7, 7.24~7.43, 7.25 (m, 5Hx5, -CH2C6 H 5   and diphenyl group of TBDFPS), 4.93.~4.59 (d, 2Hx3, -CH 2 C6H5), 4.76 (d, 1H, J = 3.5 Hz, H-1), 3.98 (dd, 1H, J = 9.0 and 9.5 Hz, H-3), 3.85 (m, 1Hx2, H-6 proR and pros),~3.75 (m, 1H, H-5), 3.79 and 3.43 (ddx2, 1Hx2, J = 3.5 and 10.5, J = 7.0 and 10.5 Hz, glycerol H-3proR  or H-3proS), 3.63 (dd, 1H, J = 9.0 and 9.50 Hz, H-4),~3.70 and~3.58 (mx2,1Hx2, glycerol H-1proS  or H-1proR), 3.56 (dd, 1H, J = 3.5 and 9.5 Hz, H-2), 2.27 (dd, 1H, J = 5.5 and 7.5 Hz, glycerol H-2), 1 .04 (s, 9H, t-butyl group of TBDPS); HRMS (FAB): m / z calcd. for C46H54O8SiNa [M + Na+] 785.3486; found 785.3483.
  Compound 21 (colorless syrup): [α]D 27= + 14.6 (c 1.0, CHCl3); IR (KBr film) ν / cm-1: 3031,925,2854,1743,1459,1427,1361,1157,1108,823,736,701,611,504;1H-NMR (500 MHz, CDCl3) ΔH7.65~7.7, 7.24~7.43, 7.25 (m, 5Hx5, -CH2C6 H 5   and diphenyl group of TBDFPS), 5.23 (m, 1H, glycerol H2), 4.94.~4.61 (d, 2Hx3, -CH 2 C6H5), 4.79 (d, 1H, J = 3.5 Hz, H-1), 4.39 (dd, 1H, J = 4.0 and 12.0 Hz, glycerol H-1proS), 4.15 (dd, 1H, J = 6.0 and 12.0 Hz, glycerol H-1).proR), 3.97 (dd, 1H, J = 9.0 and 9.5 Hz, H-3),~3.85 (m, 1H, H-5),~3.85 and~3.67 (m, 1Hx2, H-6proR and proS), 3.72 (dd, 1H, J = 6.0 and 10.5 Hz, glycerol H-3proR),~3.67 (m, 1H, H-4), 3.55 (dd, 1H, J = 3.5 and 9.5 Hz, H-2), 3.53 (dd, 1H, J = 5.5 and 10.5Hz, glycerol H-3proS), 2.24 (m, 2Hx2, -OCOCH2CH2(CH2)12CH3), 1.54 (b, 2Hx2, -OCOCH2CH2(CH2)12CH3), 1.25 (b, 24Hx2, -OCOCH2CH2(CH2)12CH3), 1.04 (s, 9H, t-butyl group of TBDPS), 0.88 (t, 3Hx2, J = 7.0 Hz, -OCOCH2CH2(CH2)12CH3); HRMS (FAB): m / z calcd. for C78H114O10SiNa [M + Na+] 1261.8079; found 1261.8887.

本発明の糖脂質誘導体の製造方法が製造対象とする脂質誘導体はリウマチなどの診断薬などへの応用が期待でき、本発明の脂質誘導体の製造ではその脂質誘導体を効率的に製造することができる。 The lipid derivative to be produced by the method for producing a glycolipid derivative of the present invention can be expected to be applied to diagnostic agents such as rheumatism, and the lipid derivative of the present invention can be efficiently produced. .

Claims (14)

下記一般式(VII)に記載の糖脂質誘導体合成中間体。
Figure 0005212973

(式(VII)中、Xはハロゲン;Rは炭化水素基から独立して選択可能であり;Qは独立して選択できるリンの保護基又は水素であり、該リン酸の保護基が2−シアノエチル基、アリル基、ベンジル基若しくはt−ブチル基であり;Yはそれぞれ独立して選択できるOH基の保護基又は水素であり、該OH基の保護基がベンジル基若しくはTBDMS基である)
A glycolipid derivative synthetic intermediate described in the following general formula (VII).
Figure 0005212973

(In the formula (VII), X is a halogen; R is independently selectable from a hydrocarbon group; Q is an independently selectable phosphoric acid protecting group or hydrogen, and the phosphoric acid protecting group is 2 - cyanoethyl group, allyl group, a benzyl group or a t- butyl group; Y is Ri protecting group or hydrogen der OH groups which can be selected independently, the OH group protecting group is benzyl or TBDMS Motodea of )
前記一般式(VII)のXがBrである請求項1に記載の糖脂質誘導体合成中間体。   The glycolipid derivative synthesis intermediate according to claim 1, wherein X in the general formula (VII) is Br. 前記一般式(VII)の(A)で示される糖骨格の立体構造がD−グルコースと同じである請求項1又は2に記載の糖脂質誘導体合成中間体。   The glycolipid derivative synthesis intermediate according to claim 1 or 2, wherein the steric structure of the sugar skeleton represented by (A) of the general formula (VII) is the same as that of D-glucose. 1位以外のOH基について保護基を導入した糖類であるドナー化合物に対して、ホスホニウムハロゲン化合物及び塩基性溶媒の存在下、光学活性なグリシドール又はグリシドールから誘導される光学活性なグリセロール骨格をもつ誘導体をアクセプター化合物として反応させ、α−グリコシル結合およびグリセロール部分の立体構造を同時に構築する工程を有し、
前記ドナー化合物は、D−グルコース又はD−ガラクトースの2〜4位のOH基にエーテル系の保護基を導入し、6位のOH基にエステル系の保護基を導入した単糖誘導体である、
請求項1〜3のうちの何れか1項に記載の糖脂質誘導体合成中間体を製造することを特徴とする糖脂質誘導体合成中間体の製造方法。
An optically active glycidol or a derivative having an optically active glycerol skeleton derived from glycidol in the presence of a phosphonium halogen compound and a basic solvent for a donor compound that is a saccharide introduced with a protecting group for an OH group other than the 1-position Reacting as an acceptor compound and simultaneously constructing the α-glycosyl bond and the three-dimensional structure of the glycerol moiety,
The donor compound is a monosaccharide derivative in which an ether-based protecting group is introduced into the OH group at positions 2 to 4 of D-glucose or D-galactose, and an ester-based protecting group is introduced into the OH group at position 6.
A method for producing a glycolipid derivative synthetic intermediate according to any one of claims 1 to 3, wherein the glycolipid derivative synthetic intermediate according to any one of claims 1 to 3 is produced.
前記塩基性溶媒はテトラメチル尿素を含有する溶媒又はホルムアミド系溶媒である請求項4に記載の糖脂質誘導体合成中間体の製造方法。   The method for producing a glycolipid derivative synthesis intermediate according to claim 4, wherein the basic solvent is a solvent containing tetramethylurea or a formamide solvent. 前記ホルムアミド系溶媒はジメチルホルムアミドである請求項5に記載の糖脂質誘導体合成中間体の製造方法。   The method for producing a glycolipid derivative synthetic intermediate according to claim 5, wherein the formamide solvent is dimethylformamide. 前記塩基性溶媒はジクロロメタンを含有する請求項4〜6のいずれかに記載の糖脂質誘導体合成中間体の製造方法。   The method for producing a glycolipid derivative synthetic intermediate according to any one of claims 4 to 6, wherein the basic solvent contains dichloromethane. 前記ホスホニウムハロゲン化合物は、CHnX4−n(XはBr又はI;0≦n≦2)及びG3P(Gは炭化水素基,−OG’及び−NG’2から独立して選択可能である。G’は炭化水素基である。)を反応させた試薬から選択される請求項4〜7のいずれかに記載の糖脂質誘導体合成中間体の製造方法。   The phosphonium halogen compound can be independently selected from CHnX4-n (X is Br or I; 0 ≦ n ≦ 2) and G3P (G is a hydrocarbon group, —OG ′ and —NG′2. Is a hydrocarbon group.) The method for producing a glycolipid derivative synthetic intermediate according to any one of claims 4 to 7, wherein the intermediate is selected from reagents obtained by reacting with a group. 前記ホスホニウムハロゲン化合物は、四臭化炭素およびトリフェニルホスフィンを反応させた試薬である請求項4〜8のいずれかに記載の糖脂質誘導体合成中間体の製造方法。   The method for producing a glycolipid derivative synthetic intermediate according to any one of claims 4 to 8, wherein the phosphonium halogen compound is a reagent obtained by reacting carbon tetrabromide and triphenylphosphine. 立体構造が制御された下記一般式(VIII)で表される糖脂質誘導体合成中間体に対して、ホスホロアミダイト誘導体と下記一般式(III)又は(IV)で表される化合物とを活性化剤の存在下、反応させるアミダイト法により、下記一般式(IX)で表される糖脂質誘導体合成中間体を得る工程を有することを特徴とする糖脂質誘導体合成中間体の製造方法。
Figure 0005212973

(式(VIII)中、Rは炭化水素基から独立して選択可能であり;Yはそれぞれ独立して選択できるOH基の保護基である)
Figure 0005212973

(式(III)及び(IV)中、Tはエーテル系保護基を表す。)
Figure 0005212973

(式(IX)中、Rは炭化水素基から独立して選択可能であり;Qは前記ホスホロアミダイト由来のリンの保護基であり;Yはそれぞれ独立して選択できるOH基の保護基又は水素であり;Tはエーテル系保護基を表す。)
Activates a phosphoramidite derivative and a compound represented by the following general formula (III) or (IV) for a glycolipid derivative synthetic intermediate represented by the following general formula (VIII) whose steric structure is controlled. A method for producing a glycolipid derivative synthetic intermediate comprising a step of obtaining a glycolipid derivative synthetic intermediate represented by the following general formula (IX) by an amidite method in which reaction is performed in the presence of an agent.
Figure 0005212973

(In formula (VIII), R can be independently selected from a hydrocarbon group; Y is a protecting group for an OH group that can be independently selected)
Figure 0005212973

(In the formulas (III) and (IV), T represents an ether protecting group.)
Figure 0005212973

(In the formula (IX), R can be independently selected from a hydrocarbon group; Q is a protecting group for phosphoric acid derived from the phosphoramidite; Y is a protecting group for an OH group that can be independently selected; Or hydrogen; T represents an ether-based protecting group.)
下記一般式(XII)で表される糖脂質誘導体合成中間体に対して、ホスホロアミダイト誘導体と2−ハロゲン化エタノールとを活性化剤の存在下、反応させるアミダイト法により、下記一般式(XIII)で表される糖脂質誘導体合成中間体を得る工程を有することを特徴とする糖脂質誘導体合成中間体の製造法。
Figure 0005212973

(式(XII)中、Yはそれぞれ独立して選択できるOH基の保護基であり;Qは独立して選択できるリンの保護基であり、前記リン酸エステル化剤由来である;Rは炭化水素基から独立して選択される。)
Figure 0005212973

(式(XIII)中、Xはハロゲンであり;Yはそれぞれ独立して選択できるOH基の保護基であり;Qは独立して選択可能なリンの保護基であり、前記リン酸エステル化剤に由来する;Rは炭化水素基から独立して選択される。)
A glycolipid derivative synthesis intermediate represented by the following general formula (XII) is reacted with a phosphoramidite derivative and 2-halogenated ethanol in the presence of an activator by the amidite method, and the following general formula (XIII A process for obtaining a glycolipid derivative synthetic intermediate represented by the formula:
Figure 0005212973

(In the formula (XII), Y is a protecting group for an OH group which can be independently selected; Q is a protecting group for a phosphoric acid which can be independently selected, and is derived from the phosphate esterifying agent; Independently selected from hydrocarbon groups.)
Figure 0005212973

(In the formula (XIII), X is halogen; Y is a protecting group for the OH group which can be selected independently; Q is a protecting group of selectable independently phosphate, the phosphoric acid ester of Derived from the agent; R is independently selected from a hydrocarbon group.)
前記一般式(XII)で表される中間体に対し、リン酸エステルとして導入する前記2−ハロゲン化エタノールは2-ブロモエタノールである請求項11に記載の糖脂質誘導体の製造方法。   The method for producing a glycolipid derivative according to claim 11, wherein the 2-halogenated ethanol introduced as a phosphate ester to the intermediate represented by the general formula (XII) is 2-bromoethanol. 下記一般式(IX)で表されることを特徴とする糖脂質誘導体合成中間体。
Figure 0005212973

(式(IX)中、Rは炭化水素基から独立して選択可能であり;Qは前記ホスホロアミダイト由来のリンの保護基であり、該リン酸の保護基が2−シアノエチル基、アリル基、ベンジル基若しくはt−ブチル基であり;Yはそれぞれ独立して選択できるOH基の保護基又は水素であり、該OH基の保護基がベンジル基若しくはTBDMS基であり、;Tはエーテル系保護基であり、トリチル基若しくはメトキシトリチル基を表す。)
A glycolipid derivative synthetic intermediate represented by the following general formula (IX):
Figure 0005212973

(In the formula (IX), R can be independently selected from a hydrocarbon group; Q is a phosphoric acid protecting group derived from the phosphoramidite, and the phosphoric acid protecting group is a 2-cyanoethyl group, allyl group, a benzyl group or a t- butyl group; Y is a protecting group or hydrogen of the OH groups which can be selected independently, protecting group of the OH group is benzyl group or TBDMS group,; T of the ether (Protecting group , which represents a trityl group or a methoxytrityl group .)
下記一般式(IX)で表されることを特徴とする糖脂質誘導体合成中間体。
Figure 0005212973

(式(IX)中、Rは炭化水素基から独立して選択可能であり;Yはそれぞれ独立して選択できるOH基の保護基又は水素であり、該OH基の保護基がベンジル基若しくはTBDMS基であり、;
Q及びTは、Q及びTが水素であるか、Qが水素でありTがトリチル基若しくはメトキシトリチル基であるか、又は、Qが2−シアノエチル基、アリル基、ベンジル基若しくはt−ブチル基でありTが水素を表す。)
Glycolipid derivatives synthetic intermediate which is characterized by being represented by the following general formula (IX).
Figure 0005212973

(In the formula (IX), R can be independently selected from a hydrocarbon group; Y is a protecting group for an OH group or hydrogen which can be independently selected, and the protecting group for the OH group is a benzyl group or a TBDMS; A group;
Q and T are Q and T are hydrogen, Q is hydrogen and T is a trityl group or a methoxytrityl group, or Q is a 2-cyanoethyl group, an allyl group, a benzyl group or a t-butyl group And T represents hydrogen. )
JP2007532018A 2005-08-22 2006-02-21 Glycolipid derivative synthesis intermediate and production method thereof, and glycolipid derivative and production method thereof Active JP5212973B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007532018A JP5212973B2 (en) 2005-08-22 2006-02-21 Glycolipid derivative synthesis intermediate and production method thereof, and glycolipid derivative and production method thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2005240468 2005-08-22
JP2005240468 2005-08-22
PCT/JP2006/303538 WO2007023583A1 (en) 2005-08-22 2006-02-21 Intermediate in synthesizing glycolipid derivative and method of producing the same, and glycolipid derivative and method of producing the same
JP2007532018A JP5212973B2 (en) 2005-08-22 2006-02-21 Glycolipid derivative synthesis intermediate and production method thereof, and glycolipid derivative and production method thereof

Publications (2)

Publication Number Publication Date
JPWO2007023583A1 JPWO2007023583A1 (en) 2009-02-26
JP5212973B2 true JP5212973B2 (en) 2013-06-19

Family

ID=37771338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007532018A Active JP5212973B2 (en) 2005-08-22 2006-02-21 Glycolipid derivative synthesis intermediate and production method thereof, and glycolipid derivative and production method thereof

Country Status (2)

Country Link
JP (1) JP5212973B2 (en)
WO (1) WO2007023583A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5252468B2 (en) * 2007-06-27 2013-07-31 エム バイオ テック株式会社 Method for synthesizing mycoplasma pneumoniae specific antigen glycolipid
CN102448488B (en) 2009-06-04 2014-10-15 独立行政法人产业技术综合研究所 Vaccine for mycoplasma infection

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05124921A (en) * 1991-11-07 1993-05-21 Kao Corp Cosmetic
JPH0648916A (en) * 1992-07-30 1994-02-22 Kao Corp Cosmetic
JPH07149786A (en) * 1993-11-26 1995-06-13 Sagami Chem Res Center Glyceroglycolipid and carcinogenic promoter inhibitor
JPH07252494A (en) * 1991-12-31 1995-10-03 Unilever Nv Glycolipid surfactant and composition containing the surfactant
JPH07278174A (en) * 1994-02-18 1995-10-24 Ube Ind Ltd Glyceroglycolipid compound containing phosphorylcholine
JPH07278175A (en) * 1994-02-18 1995-10-24 Ube Ind Ltd Glyceroglycolipid compound containing phosphorylcholine
JPH07304789A (en) * 1994-03-18 1995-11-21 Ube Ind Ltd Method for producing glycero glucolipid compound
JPH0848693A (en) * 1994-06-03 1996-02-20 Seikagaku Kogyo Co Ltd New glyceroglycophospholipid, its antibody and method for detecting mycoplasma
WO2005049631A1 (en) * 2003-11-18 2005-06-02 The Malaghan Institute Of Medical Research Synthetic molecules having immune activity

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05124921A (en) * 1991-11-07 1993-05-21 Kao Corp Cosmetic
JPH07252494A (en) * 1991-12-31 1995-10-03 Unilever Nv Glycolipid surfactant and composition containing the surfactant
JPH0648916A (en) * 1992-07-30 1994-02-22 Kao Corp Cosmetic
JPH07149786A (en) * 1993-11-26 1995-06-13 Sagami Chem Res Center Glyceroglycolipid and carcinogenic promoter inhibitor
JPH07278174A (en) * 1994-02-18 1995-10-24 Ube Ind Ltd Glyceroglycolipid compound containing phosphorylcholine
JPH07278175A (en) * 1994-02-18 1995-10-24 Ube Ind Ltd Glyceroglycolipid compound containing phosphorylcholine
JPH07304789A (en) * 1994-03-18 1995-11-21 Ube Ind Ltd Method for producing glycero glucolipid compound
JPH0848693A (en) * 1994-06-03 1996-02-20 Seikagaku Kogyo Co Ltd New glyceroglycophospholipid, its antibody and method for detecting mycoplasma
WO2005049631A1 (en) * 2003-11-18 2005-06-02 The Malaghan Institute Of Medical Research Synthetic molecules having immune activity

Non-Patent Citations (22)

* Cited by examiner, † Cited by third party
Title
JPN6012015445; Org. Biomol. Chem. 1, 2003, 2518-2521 *
JPN6012015446; Carbohydr. Res. 108, 1982, C5-C9 *
JPN6012015447; Agric. Biol. Chem. 50, 1986, 2251-2259 *
JPN6012015448; Tetrahedron 44, 1988, 2957-2962 *
JPN6012015449; Tetrahedron Lett. 35, 1994, 5465-5468 *
JPN6012015450; Tetrahedron 58, 2002, 5109-5117 *
JPN6012015451; Tetrahedron Lett. 40, 1999, 2371-2374 *
JPN6012015452; Aust. J. Chem. 40, 1987, 1901-1908 *
JPN6012015453; Aust. J. Chem. 43, 1990, 1391-1405 *
JPN6012015454; Aust. J. Chem. 50, 1997, 1105-1107 *
JPN6012015455; Aust. J. Chem. 51, 1998, 471-482 *
JPN6012015456; Carbohydr. Res. 93, 1981, 141-143 *
JPN6012015457; Tetrahedron: Asymmetry 8, 1997, 765-773 *
JPN6012015458; J. Carbohydr. Chem. 17, 1998, 937-968 *
JPN6012031689; Chemistry & Biology 9, 2002, 713-720 *
JPN6012031691; Bioorg. Med. Chem. Lett. 5, 1995, 2321-2324 *
JPN6012031692; Tetrahedron Lett. 36, 1995, 4865-4868 *
JPN6012031695; Bioorg. Med. Chem. Lett. 4, 1994, 1619-1622 *
JPN6012031696; Chemistry and Physics of Lipids 10, 1973, 267-285 *
JPN6012031697; Biochimica et Biophysica Acta, Lipids and Lipid Metabolism 231, 1971, 537-544 *
JPN6012031699; J. Org. Chem. 33, 1968, 3139-3144 *
JPN6012031701; Phytochemistry 22, 1983, 1741-1744 *

Also Published As

Publication number Publication date
JPWO2007023583A1 (en) 2009-02-26
WO2007023583A1 (en) 2007-03-01

Similar Documents

Publication Publication Date Title
JP2518739B2 (en) Tumor suppressive saccharide conjugate
JP7208995B2 (en) Method for preparing the outer core octacarbon sugar of Helicobacter pylorilipopolysaccharide
JP5212973B2 (en) Glycolipid derivative synthesis intermediate and production method thereof, and glycolipid derivative and production method thereof
US4973674A (en) Chiral synthesis of anthracyclines from substituted anthraquinones
JP4691101B2 (en) 1-α-halo-2,2-difluoro-2-deoxy-D-ribofuranose derivative and method for producing the same
US5220003A (en) Process for the synthesis of 2',3'-dideoxynucleosides
HU198505B (en) Process for producing antitumour anthracycline glycosides
KR20080079833A (en) Methods for the stereoselective preparation and separation of tri-o-acetyl-5-deoxy-beta;-d-ribofuranose
JP5252468B2 (en) Method for synthesizing mycoplasma pneumoniae specific antigen glycolipid
CA2574954C (en) 1-.alpha.-halo-2,2-difluoro-2-deoxy-d-ribofuranose derivatives and process for the preparation thereof
CA1320720C (en) Sialosyl glyceride and process for producing the same
Ross et al. Parasite glycoconjugates. Part 16: Synthesis of a disaccharide and phosphorylated di-and tri-saccharides from Leishmania lipophosphoglycan
Zamyatina et al. The synthesis of 1-O-(2-N-stearoyl-D-erythro-sphinganinel-phosphoryl)-2-O-(α-D-mannopyranosyl-D-myo-inositol: a fragment of the naturally occurring inositol-containing glycophosphosphingolipids
JP2696524B2 (en) New synthesis method of ganglioside GM (3)
JP3163359B2 (en) Sulfated oligosaccharide compounds
JP2625620B2 (en) Fucosyl-glucosamine derivatives
Ivanova et al. Parasite glycoconjugates. Part 9. 1 Synthesis of dec-9-enyl β-D-galactopyranosyl-(1→ 4)-α-D-mannopyranosyl phosphate and its epimers at the D-galactose moiety, substrate analogues for the elongating α-D-mannopyranosylphosphate transferase in the Leishmania
EP0901498B1 (en) Method for synthesizing c-glycosides of ulosonic acids
JPH10310596A (en) Digalactosylceramide derivative and its production
JP2006083091A (en) Method for producing trehalose type disaccharide and its derivative and new trehalose type disaccharide derivative
IE910491A1 (en) Method for the preparation of polyphosphorylated derivatives¹of galactopyranosides with a potential insulin-like activity
Soli Recent advancements in the preparation of carbon-and nitrogen-linked glycoconjugates
JP4212087B2 (en) C, C-glycopyranosyl compound and process for producing the same
Nakamura et al. Synthesis of ceramidated GLA-60 derivatives
JPH09241288A (en) Stereoselective production of glycosyl compound

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090216

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120327

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120528

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20120529

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20120619

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120918

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20120919

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20121024

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20121122

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20121130

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130122

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130219

R150 Certificate of patent or registration of utility model

Ref document number: 5212973

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20160308

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250