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:
Feb. 19, 1991
Filed:
Feb. 10, 1989
Applicant:
Inventors:
Vittorio Vecchietti, Milan, IT;
Antonio Giordani, Pavia, IT;
Assignee:
Dr. Lo. Zambeletti S.p.A., , IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
514183 ; 514210 ; 514212 ; 5142222 ; 5142355 ; 514316 ; 514319 ; 514422 ; 514423 ; 540362 ; 540450 ; 540480 ; 540481 ; 540596 ; 540597 ; 540598 ; 540602 ; 540607 ; 544 60 ; 544130 ; 544141 ; 546189 ; 546202 ; 546206 ; 546208 ; 548518 ; 548540 ;
Abstract
A compound, or a solvate or salt thereof, of formula (I) ##STR1## in which: R.sub.1 and R.sub.2 are independently hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.3-6 cycloalkyl or C.sub.4-12 cycloalkylalkyl groups, or together form a C.sub.2-8 branched or linear polymethylene or C.sub.2-6 alkenylene group optionally substituted with a hetero-atom, provided that R.sub.1 and R.sub.2 are not simultaneously hydrogen;