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. 06, 1989
Filed:
Jun. 30, 1987
Abstract
A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein: R.sub.1 is hydrogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy or halogen; R.sub.2 and R.sub.3 are both hydrogen or together represent a bond; R.sub.4 is hydrogen and R.sub.5 is hydrogen or R.sub.4 and R.sub.5 together represent an oxo group; R.sub.6 is phenyl, phenyl C.sub.1-7 alkyl or phenyl C.sub.1 -7 alkanoyl, in which the phenyl moiety is substituted by NR.sub.8 R.sub.9 wherein R.sub.8 is C.sub.1-6 alkyl substituted by a group R.sub.10 selected from hydroxy, halo, CF.sub.3 or COR.sub.11 where R.sub.11 is hydroxy, C.sub.1-4 alkoxy or amino optionally substituted by one or two C.sub.1-4 alkyl groups, and R.sub.9 is hydrogen, C.sub.1-6 alkyl or R.sub.8 ; and R.sub.7 is hydrogen or C.sub.1-4 alkyl.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile