Patent ID: 7439262

Claim:
A compound of Formula I: wherein G is chosen from hydrogen, halogen, or C 1-4 alkyl; R is hydroxyl, C 1− C 4 alkyl, NR 6 R 7 , N(R 6 )CH 2 (CH 2 ) n N(R 7 )(R 8 ), OC 1-6 alkyl, optionally substituted with halogen, hydroxyl, wherein R 6 , R 7 , and R 8 are independently hydrogen or C 1-4 alkyl, and n is 1 or 2; X is O or CH 2 ; R 1 and R 2 are independently hydrogen or C 1-4 alkyl, or NR 1 R 2 can be incorporated into a five or six membered saturated heterocyclic ring which, in the case of a six membered ring, may contain an additional heteroatom selected from N and O; R 3 and R 4 are independently chosen from hydrogen, C 1-4 alkyl or R 3 , R 4 and the carbon atom to which they are attached can form a cyclopropyl ring, or, R 1 and R 3 together can be (CH 2 ) n to form a saturated where n=3-5; and R 5 is hydrogen or methyl; and pharmaceutically acceptable salts thereof.