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. 26, 1989
Filed:
Jun. 26, 1987
Barry S Orlek, Harlow, GB;
Michael S Hadley, Harlow, GB;
Harry J Wadsworth, Harlow, GB;
Howard E Rosenberg, Barnet, GB;
Beecham Group p.l.c., Brentford, GB;
Abstract
A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## in which A represents a bond or --CH.sub.2 -- and B represents hydrogen, or A and B together with the carbon atom to which they are both attached represents a group ##STR2## R represents R.sub.1 OOC-- in which R.sub.1 is C.sub.1-4 alkyl, C.sub.2-4 alkenyl or C.sub.2-4 alkynyl; R.sub.2 O-- in which R.sub.2 is C.sub.1-3 alkyl, C.sub.1-2 alkylcarbonyl or aminocarbonyl optionally substituted by one or two methyl groups; or R.sub.3 CH.sub.2 - in which R.sub.3 is C.sub.1-2 alkoxy; and p represents an integer of 2 to 4, and wherein compounds of formula (I) where B is hydrogen have the stereochemical configuration in which the group R and the methylene bridge are both on the same side of the plane of the molecule which contains both bridge head atoms and the ring carbon atom bonded to the group R.