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. 24, 1976
Filed:
Jul. 24, 1974
Applicant:
Inventors:
Keisuke Murayama, Tokyo, JA;
Toshimasa Toda, Tokyo, JA;
Eiko Mori, Tokyo, JA;
Katsuaki Matsui, Tokyo, JA;
Tomoyuki Kurumada, Tokyo, JA;
Noriyuki Onta, Tokyo, JA;
Ichiro Watanabe, Tokyo, JA;
Assignee:
Sankyo Company Limited, , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26029358 ; 26029366 ; 2602939 ;
Abstract
4-Piperidone ketal derivatives of the formulae ##SPC1## And ##SPC2## Wherein R.sub.1 represents an alkyl group of 1 to 8 carbon atoms and R.sub.2 represents an alkylene group of 2 or 3 carbon atoms or o-phenylene group and they are prepared by reacting triacetonamine with a monohydric alcohol of the formula