Patent ID: 8859505

Claim:
A compound of the formula I: wherein R 2a and R 2b are independently selected from H, halo, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, or R 2a and R 2b together with the carbon atom to which they are attached to form a C 3 -C 6 cycloalkyl; R 3 is a C 5 -C 10 alkyl, optionally substituted with 1-3 substituents independently selected from halo, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, C 1 -C 4 haloalkoxy; or R 3 is a C 2 -C 4 alkyl chain with at least 2 chloro or 3 flouro substituents; or R 3 is C 3 -C 7 cycloalkylmethyl, optionally substituted with 1-3 substituents independently selected from C 1 -C 4 alkyl, halo, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, C 1 -C 4 haloalkoxy; R 4 is C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkoxy, C 1 -C 6 haloalkoxy, C 1 -C 6 alkylamino, C 1 -C 6 dialylamino; n is 1, 2 or 3; and Ra and Rb are independently H, C 1 -C 4 alkyl; or a pharmaceutically acceptable salt, hydrate or N-oxide thereof.