Patent ID: 8252832

Claim:
A compound of formula (II): wherein: R 1c is selected from the group consisting of ethyl, isopropyl, t-butyl, phenyl, —CH(CH 2 ) 2 O (oxetan-3-yl) and —CCH 3 (CH 2 ) 2 O (3-methyloxetan-3-yl); R 2c is hydrogen; R 15 and R 16 are each independently selected from H, halo, C1-4 alkyl, C1-4 haloalkyl, and CN; R 17 and R 18 are each halo; R 19 , R 20 and R 21 are each independently H or optionally substituted C1-C10 acyl; R 22 is C1-C4 haloalkyl; p is 2; q is 1 or a pharmaceutically acceptable salt thereof.