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:
Jun. 23, 1992
Filed:
Mar. 14, 1990
Applicant:
Inventors:
Jun Nakauchi, New York, NY (US);
Keiichi Sakashita, Kawasaki, JP;
Seiji Hayashi, Kawasaki, JP;
Yoshitaka Kageyama, Kawasaki, JP;
Yoshihiro Sako, Kawasaki, JP;
Tetsuya Ikemoto, Kawasaki, JP;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C07D / ;
U.S. Cl.
CPC ...
25229961 ; 25229901 ; 549273 ;
Abstract
Disclosed is an optically active substance represented by the formula: ##STR1## wherein m is an integer of 1 to 14, Y is ##STR2## R is --C.sub.n H.sub.2n+1, --OC.sub.n H.sub.2n+1, --OCOC.sub.n H.sub.2n+1 or --COOC.sub.n H.sub.2n+1 (in which n is an integer of 1 to 18), each of the asterisked carbon atoms is an asymmetric carbon atom, X a single bond, --CO.sub.2 --, or --OCO--, and A.sub.1 and A.sub.2 is hydrogen, fluorine, chlorine, bromine, cyano or methoxy.