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:
Mar. 17, 1998
Filed:
Apr. 02, 1997
Applicant:
Inventors:
Ioannis Houpis, Plainfield, NJ (US);
Audrey Molina, Clark, NJ (US);
Ralph P Volante, Cranberry, NJ (US);
Assignee:
Merck & Co., Inc., Rahway, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
546339 ; 546330 ; 546335 ; 546337 ; 546338 ; 546340 ; 546341 ; 546342 ;
Abstract
A process for the preparation of a compound of structural formula I ##STR1## wherein R.sup.1 is alkyl, alkenyl, phenyl or substituted phenyl, which comprises the addition of R.sup.1 to an intermediate 2: ##STR2## by treatment of 2 with (R.sup.1).sub.3 M followed by reductive removal of the sulfinyl group.
Houpis, Ioannis. (1998). Method of preparing phosphodiesterase iv inhibitors (U.S. Patent No. 5728838). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5728838
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile