Patent ID: 8026259

Claim:
The compound of the formula (Ic) wherein R 1 is hydrogen, or C 1-6 -alkyl, optionally substituted by CN or OH; R 2 is hydrogen, C 1-6 -alkyl, or C 1-6 -alkoxy, R 3 is hydrogen, halo, or C 1-6 -alkyl; R 4 is hydrogen, halo, C 1-6 -alkyl, halo-C 1-6 -alkyl, C 1-6 -alkoxy, or halo-C 1-6 -alkoxy R 5 is hydrogen, halo, C 1-6 -alkyl, or C 1-6 -alkoxy; R 6 is hydrogen, C 1-6 -alkyl, optionally substituted by CN or OH, nitro, halo, cyano, C 1-6 -alkoxy, halo-C 1-6 -alkoxy, or halo-C 1-6 -alkyl, R 12 , R 12 ′, R 13 , R 13 ′, and R 14 are each independently hydrogen, C 1-6 -alkoxy, C 1-6 -alkyl, halo, halo-C 1-6 -alkoxy, halo-C 1-6 -alkyl, or nitro; or a pharmaceutically acceptable salt thereof.