Title:
【発明の名称】対称ビシクロ〔3.3.0〕オクタンジオンジカルボン酸ジエステルの製法
Document Type and Number:
Japanese Patent JP2562495
Kind Code:
B2
Abstract:
PCT No. PCT/DE88/00414 Sec. 371 Date Mar. 17, 1989 Sec. 102(e) Date Mar. 17, 1989 PCT Filed Jul. 1, 1988 PCT Pub. No. WO89/00555 PCT Pub. Date Jan. 26, 1989.The invention concerns a process for manufacturing diesters of bicyclo[3.3.0]-octane dicarboxylic acid having general formula (I), where R1 is a straight-chain or branched-chain alkyl group with 1 to 10 C atoms. The process is charaterized by the fact that a 2-cyclopentenone derivative having general formula (III), where R2 is a hydrogen atom or a straight-chain or branched-chain alkyl group with 1 to 10 C atoms, which can be substituted, if necessary, by a phenyl group, is converted in the presence of a base with a diester of aceton dicarboxylic acid having formula (IV), where R1 has the meaning given above.
Inventors:
SUKUBARA UERUNAA
Application Number:
JP50582988A
Publication Date:
December 11, 1996
Filing Date:
July 01, 1988
Export Citation:
Assignee:
SCHERING AG
International Classes:
A61K31/215; C07C67/343; C07C69/757; C07C49/707; C07C49/753; C07C69/716; (IPC1-7): C07C69/757; C07C67/343
Other References:
Ｃｈｅｍｉｓｃｈｅ Ｂｅｒｉｃｈｔｅ，Ｖｏｌ．１１０（１９７７），Ｐ．１４６−１５３
Attorney, Agent or Firm:
Toshio Yano (1 outside)