Patent ID: 7414060

Claim:
A compound of formula (Ib): wherein R 2 is H, C 1 -C 7 -alkyl, C 3 -C 6 -cycloalkyl, or —(CH 2 ) m —R a ; R 3 is aryl or a 5- or 6-membered heteroaryl each of which is optionally substituted by: CN, Cl, F, Br, CF 3 , CHF 2 , —O—C 1 -C 7 -alkyl, —(CO)—R b , —(CH 2 ) m —R c , —NH—(CO)—C 1 -C 7 -alkyl, —O—CH 2 F, —O—CHF 2 , —O—CF 3 , —S(O) 2 -R d , C 3 -C 6 -cycloalkyl, or heteroaryl which is optionally substituted by C 1 -C 7 -alkyl; and R 4 is H, —OH, Cl, F, Br, CN, —CHF 2 , CF 3 , C 1 -C 7 -alkyl, —O—(CO)—C 1 -C 7 -alkyl, C 3 -C 6 -cycloalkyl, or —(CH 2 ) m —R e ; or a pharmaceutically acceptable salt thereof.