Patent ID: 7998993

Claim:
A compound of formula (I) or a pharmaceutically acceptable salt, thereof, wherein W is CH 2 or O; R 1 is phenyl, a monocyclic heteroaryl, or a monocyclic cycloalkenyl, a monocyclic cycloalkyl, each of which is independently unsubstituted or substituted with 1, 2, 3, 4, or 5 substituents as represented by R 3 , wherein each R 3 is independently alkyl, alkenyl, alkynyl, —NO 2 , —CN, halogen, —OR a , —OC(O)R a , —SR a , —SF 5 , —S(O)R b , —S(O) 2 R b , —S(O) 2 N(R a )(R c ), —N(R a )(R c ), —N(R c )C(O)R a , —N(R c )S(O) 2 R b , —N(R c )C(O)N(R a )(R c ), —N(R c )S(O) 2 N(R a )(R c ), —C(O)R a , —C(O)O(R a ), —C(O)N(R a )(R c ), —(CR e R f ) m —CN, haloalkyl, or a monocyclic cycloalkyl that is optionally substituted with 1, 2, 3, or 4 substituents independently selected from the group consisting of alkyl, haloalkyl and halogen; R a , at each occurrence, is independently hydrogen, alkyl, or haloalkyl; R b , at each occurrence, is independently alkyl or haloalkyl; R c , at each occurrence, is independently hydrogen, alkyl, or haloalkyl; R e and R f are each independently hydrogen, alkyl, or haloalkyl; m is 1, 2, or 3; R 2 is hydrogen or alkyl; and R 4 is methyl, ethyl, C 1 -C 2 haloalkyl, or —CN.