Patent number: 7291632
Abstract: The present invention relates to compounds of formula I: (I) or a pharmaceutically acceptable acid addition salt thereof, where; X is C(R3c? or N?; R1 is C2–C6 alkyl, substituted C2–C6 alkyl, C3–C7 cycloalkyl, substituted C3–C7 cycloalkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle; R2 is hydrogen, C1–C3 n-alkyl, C3–C6 cycloalkyl-C1–C3 alkyl, or a group of formula II (II) provided that when R1 is C2–C6 alkyl or substituted C2–C6 alkyl, R2 is hydrogen or methyl; R3a, R3b, and, when X is C(R3c)?, R3c, are each independently hydrogen, fluoro, or methyl, provided that no more than one of R3a, R3b, and R3c may be other than hydrogen; R4 is hydrogen or C1–C3 alkyl; R5 is hydrogen, C1–C3 alkyl, or C3–C6 cycloalkylcarbonyl, provided that when R3a is other than hydrogen, R5 is hydrogen; R6 is hydrogen or C1–C6 alkyl; and n is an integer from 1 to 6 inclusively.
Type:
Grant
Filed:
September 3, 2004
Date of Patent:
November 6, 2007
Assignee:
Eli Lilly and Company
Inventors:
Maria-Jesus Blanco-Pillado, Michael Philip Cohen, Sandra Ann Filla, Kevin John Hudziak, Daniel Timothy Kohlman, Dana Rae Benesh, Frantz Victor, Yao-Chang Xu, Bai-Ping Ying, DeAnna Piatt Zacherl, Deyi Zhang, Brian Michael Mathes