申请人:G.D. Searle & Co.
公开号:EP0362816A1
公开(公告)日:1990-04-11
This invention relates to a novel cyclopenteneheptenoic acid derivative having the following formula
wherein R₁ is hydrogen, -COCH₃, -COCF₃, -CO-phenyl,
or a hydroxyl protecting group such as tetrahydropyranyl, tetrahydrofuranyl, or tri-lower alkylsilyl;
wherein R₂ is -CH₂OR₁, -COOH, -COOR, -CHO, -CH₂-OSi(R₁₂)₃,
wherein R is lower alkyl and each R₁₂ is independently lower alkyl or aryl; and
wherein Y is ethylene, cis-vinylene, trans-vinylene, or acetylene.
Also disclosed is a novel process for preparation of the above-defined cyclopenteneheptenoic acid derivative. This process involves coupling of a higher order cuprate complex with a chiral cyclopentene compound. The resultant product is particularly useful as a starting compound for high yield synthesis of optically active prostaglandins.
本发明涉及一种具有下式的新型环戊烯庚酸衍生物
其中 R₁ 是氢、-COCH₃、-COCF₃、-CO-苯基、
或羟基保护基团,如四氢吡喃基、四氢呋喃基或三低烷基硅基;
其中 R₂ 是-CH₂OR₁、-COOH、-COOR、-CHO、-CH₂-OSi(R₁₂)₃、
其中 R 是低级烷基,每个 R₁₂ 独立地是低级烷基或芳基;以及
其中 Y 为乙烯、顺式乙烯、反式乙烯或乙炔。
还公开了一种制备上述环戊烯庚酸衍生物的新工艺。该工艺涉及高阶铜酸盐络合物与手性环戊烯化合物的偶联。所得到的产物特别适用于作为高产率合成光学活性前列腺素的起始化合物。