申请人:G. D. Searle & Co.
公开号:US04952710A1
公开(公告)日:1990-08-28
This invention relates to a novel cyclopenteneheptenoic acid derivative having the following formula ##STR1## wherein R.sub.1 is hydrogen, --COCH.sub.3, --COCF.sub.3, --CO--phenyl, or a hydroxyl protecting group such as tetrahydropyranyl, tetrahydrofuranyl, or tri-lower alkylsilyl; wherein R.sub.2 is --CH.sub.2 OR.sub.1, --COOH, --COOR, --CHO, --CH.sub.2 --OSi(R.sub.12).sub.3, ##STR2## wherein R is lower alkyl and each R.sub.12 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.
这项发明涉及一种具有以下结构的新型环戊烯庚烯酸衍生物:其中R.sub.1是氢,-COCH.sub.3,-COCF.sub.3,-CO-苯基,或羟基保护基,如四氢吡喃基,四氢呋喃基,或三个较低烷基硅基;其中R.sub.2是-CH.sub.2 OR.sub.1,-COOH,-COOR,-CHO,-CH.sub.2-OSi(R.sub.12).sub.3,其中R是较低烷基,每个R.sub.12独立地是较低烷基或芳基;Y是乙烯,顺式乙烯,反式乙烯,或乙炔。还披露了一种用于制备上述环戊烯庚烯酸衍生物的新型方法。该方法涉及将高阶铜基复合物与手性环戊烯化合物偶联。所得产物特别适用作为合成光学活性前列腺素的高产率合成的起始化合物。