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. 27, 1989
Filed:
Jul. 24, 1987
Applicant:
Inventors:
Kiyotomo Seto, Funabashi, JP;
Ryozo Sakoda, Funabashi, JP;
Hiroo Matsumoto, Funabashi, JP;
Yoshimasa Kamikawaji, Funabashi, JP;
Sakuya Tanaka, Shiraoka, JP;
Assignee:
Nissan Chemical Industries Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
514252 ; 544337 ;
Abstract
An optical isomer of a compound having the formula: ##STR1## wherein the two methyl groups at 4- and 6-positions of the dioxaphosphorinane ring assume trans configurations to each other, which has a levo-rotatory angle of optical rotation attributable to the asymmetric carbon atom at 4-position of the dihydropyridine ring, and a pharmaceutically acceptable salt thereof.