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:
Sep. 15, 1987
Filed:
Apr. 28, 1986
Applicant:
Inventors:
William A Slusarchyk, Belle Mead, NJ (US);
Tamara Dejneka, Skillman, NJ (US);
Assignee:
E. R. Squibb & Sons, Inc., Princeton, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
546 14 ; 546347 ; 546268 ; 540355 ;
Abstract
Disclosed herein is a process for preparing a compound having the formula ##STR1## which comprises sulfonating a compound having the formula ##STR2## with a complex having the formula ##STR3## and cyclizing the resulting compound having the formula ##STR4## by treatment with a base.