Patent ID: 7569725

Claim:
A compound of Formula I: or a pharmaceutically acceptable salt thereof, wherein: R 1 is —CH 2 CH 2 -(phenyl) or —CH 2 CH 2 -(pyridyl), wherein said phenyl or said pyridyl is optionally substituted with one or two substituents selected from halogen, Me, Et, OMe, and OEt; Each R 2 is independently selected from alkyl, substituted alkyl, and OR 11 ; or one R 2 together with another R 2 attached to an adjacent carbon may form a fused phenyl ring; Each R 3 is independently selected from H, halogen, OH, OMe, OEt, SH, Me, Et, CO 2 H, NHSO 2 Me, and NHSO 2 Et; or one R 3 together with another R 3 attached to an adjacent carbon may form a fused heterocycle; R 4 is H, Me, Et, or iso-propyl; R 11 is H, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aryl, or substituted aryl; m is 1 or 2; and n is 1 or 2.