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:
Oct. 02, 1990
Filed:
Dec. 02, 1988
Applicant:
Inventors:
Michael J Ashton, Chelmsford, GB;
Andrew W Bridge, Chelmsford, GB;
Donald I Dron, Upminster, GB;
Garry Fenton, Brentwood, GB;
David J Lythgoe, Gidea Park, GB;
Christopher G Newton, Chelmsford, GB;
David Riddell, Billericay, GB;
Christopher Smith, Benfleet, GB;
Keith A Stuttle, Rockford, GB;
Assignee:
May & Baker Limited, Dagenham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514248 ; 544229 ; 544234 ; 544237 ;
Abstract
Therapeutically useful pyrrolo[2,1-a]phthalazine derivatives of the formula: ##STR1## wherein R.sup.1 and R.sup.2 represent cycloalkyl, optionally substituted alkyl, alkenyl, alkynyl, aryl or heteroaryl, X represents ethylene or vinylene, R.sup.3 represents a group of the formula: