Patent ID: 8883688

Claim:
A compound of Formula IB: wherein X represents H or F; Y represents halogen, C 1 -C 8 alkyl, C 3 -C 6 cycloalkyl, or phenyl substituted with 1 -4 substituents independently selected from halogen, C 1 -C 3 alkyl, C 3 -C 6 cycloalkyl, C 1 -C 3 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, cyano, nitro, NR 1 R 2 , or where two adjacent substituents are taken together as —O(CH 2 ) n O— or —O(CH 2 ) n — wherein n=1 or 2; Z represents halogen or C 2 -C 4 alkenyl; R 1 and R 2 independently represent H, C 1 -C 6 alkyl, or C 1 -C 6 acyl; R 3 represents unsubstituted or substituted C 7 -C 11 arylalkyl.