Patent number: 6645977
Abstract: The present invention discloses compounds of formula (1) any of its enantiomers or any mixture thereof, or a pharmaceutically acceptable salt thereof; wherein - - - - is a single or a double bond; R is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl,
cycloalkylalkyl, aryl or aralkyl; and R1 is (a), wherein R2 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, amino; or aryl which may be substituted one or more times with substituents selected from the group consisting of alkyl, cycloalklyl, cycloalkylalkyl alkenyl, alkynyl, alkoxy, cycloalkoxy, thioalkoxy, thiocycloalkoxy, methylenedioxy, aryloxy, halogen, CF3, OCF3, CN, amino, aminoacyl, nitro, aryl and a monocyclic 5 to 6-membered heteroaryl group; a monocyclic 5 to 6-membered heteroaryl group which may be substituted one or more times with substituents selected from the group consisting of alkyl, cycloalkyl, cycloalkylalkyl alkenyl, alkynyl, alkoxy, cycloalkoxy, thioalkoxy, thiocycloalkoxy, methylenedioxy, aryloxy, halogen,
Type:
Grant
Filed:
November 29, 1999
Date of Patent:
November 11, 2003
Assignee:
NeuroSearch A/S
Inventors:
Dan Peters, Gunnar M. Olsen, Simon Feldbaek Nielsen, Elsebet Ostergaard Nielsen