Patent ID: 8492568

Claim:
A compound of the formula (I): wherein dotted ( . . . ) line is absent; A is substituted or unsubstituted cycloalkyl, aryl, heteroaryl, or heterocyclic group; Y is —(CHR 1 ) r wherein R 1 is hydrogen, halogen, or substituted or unsubstituted alkyl; X is hydrogen, nitro, cyano, halogen, substituted or unsubstituted alkyl, —OR 2 , —NR 3 R 4 , —C(O)—R 3 , —C(O)O—R 3 , —C(O)NR 3 R 4 , —S(O) p NR 3 R 4 , or —S(O) p R 3 ; at each occurrence R 3 and R 4 , which may be same or different, are independently selected from hydrogen, —OR 2 , substituted or unsubstituted alkyl, alkenyl, cycloalkyl cycloalkylalkyl, cycloalkenyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, heterocyclic group, or heterocyclylalkyl; at each occurrence R 2 is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, heteroaryl, heterocyclic group, cycloalkylalkyl, arylalkyl, heteroarylalkyl, or heterocyclylalkyl; ‘m’ is an integer ranging from 0 to 2, both inclusive; ‘n’ is an integer ranging from 0 to 2, both inclusive; ‘p’ is an integer ranging from 0 to 2, both inclusive; and ‘r’ is an integer ranging from 0 to 2, both inclusive; or pharmaceutically acceptable salts thereof.