Patent ID: 8802728

Claim:
A compound, or salt thereof, of formula I: wherein A is R 1 is hydrogen, C 1 -C 5 alkyl, C 1 -C 5 haloalkyl, C 1 -C 5 alkanol, —(C 1 -C 5 alkyl)phenyl, or phenyl, or a group of the formula —C(O)—R 12 , where R 12 is C 1 -C 5 alkyl, C 1 -C 5 alkoxy, C 1 -C 5 haloalkyl, C 1 -C 5 alkanol, —(C 1 -C 5 alkyl)phenyl, or phenyl; R 2 is hydrogen, C 1 -C 5 alkyl, C 1 -C 5 alkoxy, halogen, C 1 -C 5 haloalkyl, or C 1 -C 5 haloalkoxy; R 3 is hydrogen, C 1 -C 5 alkyl, C 1 -C 5 alkoxy, halogen, C 1 -C 5 haloalkyl, or C 1 -C 5 haloalkoxy; R 4 is hydrogen, C 1 -C 5 alkyl, or —(C 1 -C 5 alkyl)phenyl; R 5 is hydrogen, C 1 -C 5 alkyl, or —(C 1 -C 5 alkyl)phenyl; R 6 is hydrogen, hydroxy, or is absent; R 7 is hydrogen; R 8 is hydrogen or methyl; R 9 is hydrogen or methyl; R 10 is hydrogen; R 11 is hydrogen or C 1 -C 5 alkyl; provided that one of A), B), and C) is present, wherein A), B) and C) are: A) R 7 and R 10 combine to form —CH 2 — or —(CH 2 ) 2 —; B) R 8 and R 9 combine to form a cyclopropyl group with the carbon to which they are attached; and C) R 10 and R 11 combine to form —CH 2 — or —(CH 2 ) 3 .