The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 1977
Filed:
Nov. 10, 1975
Seizi Kurozumi, Hino, JA;
Takeshi Toru, Hino, JA;
Toshio Tanaka, Hino, JA;
Shuzi Miura, Hino, JA;
Makiko Kobayashi, Hino, JA;
Sadakazu Matsubara, Hino, JA;
Sachio Ishimoto, Tokyo, JA;
Teijin Limited, Osaka, JA;
Abstract
New optically active cyclopentene-diol and the mono- or diacyl esters thereof and a process for converting a diacyl ester of cyclopent-1-en-3,5-diol to its monoacyl ester and/or its diol which comprises subjecting a diacyl ester of cyclopent-1-en-3,5-diol containing at least one of the optically active or inactive diacyl ester of trans-cyclopent-1-en-3,5-diol (trans-isomer) and diacyl esters of cis-cyclopent-1-en-3,5-diol (cis-isomer), to the action of a microorganism or enzyme having at least a selectivity in its rates of hydrolyzing the acyloxy group (R) configuration and the acyloxy group (S) configuration of said diacyl ester. These new compounds are valuable as starting materials for the preparation of prostaglandin or its analogues.