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:
Apr. 13, 1993
Filed:
Nov. 21, 1991
Applicant:
Inventors:
Shoichiro Ozaki, Matsuyama, JP;
Takahiko Akiyama, Matsuyama, JP;
Kunio Kageyama, Yokohama, JP;
Morihisa Machida, Kanagawa, JP;
Assignee:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549214 ; 549341 ; 549342 ;
Abstract
Optically active diols and hydroxycarboxylic acids and their esters are produced by deriving 1L-1,2:5,6-di-O-cyclohexylidene-chiro-inositol from 1L-chiro-inositol as an asymmetric source, followed by introduction of a selected class of sterically hindering and asymmetrically reactive groups into the first-mentioned compound and by subsequent reduction of the resulting compound. Seven specific inositols are also derivable from synthesis of those ultimate compounds.