Patent ID: 8519149

Claim:
A compound of formula (II): or a pharmaceutically acceptable salt thereof, wherein, A is phenyl or pyridinyl; Y is selected from —CR 3 R 4 —, and —NR 4 —; L is a bond or is selected from —(CH 2 )— and —C(O)—; R 2 is selected from —C(O)OR a , —C(O)NR a R b and substituted or unsubstituted heterocyclyl ring selected from morpholinyl, oxazolinyl, oxazolidinyl, oxadiazolyl, thiazolinyl and thiazolidinyl; R 3 and R 4 , which may be same or different, are independently selected from hydrogen and C 1-4 alkyl; R 5 and R 6 , which may be same or different, are independently selected from hydrogen, C 1-4 alkyl and C 3-6 cycloalkyl; at each occurrence R 8 , which may be same or different, is independently selected from halogen, nitro, cyano, hydroxyl, substituted or unsubstituted alkyl and substituted or unsubstituted haloalkyl; at each occurrence, R a and R b which may be the same or different, are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted haloalkyl, substituted or unsubstituted haloalkoxy, substituted or unsubstituted alkoxyalkyl, substituted or unsubstituted hydroxyalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted cycloalkylalkyl, substituted or unsubstituted aryl, substituted or unsubstituted arylalkyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted heterocyclylalkyl, substituted or unsubstituted heteroaryl, substituted or unsubstituted heteroarylalkyl, —(CH 2 ) p NR x R y , and —(CH 2 ) p CHR x R y ; or R a and R b together with the atom to which they are attached, may form cyclic ring; substituted or unsubstituted; the cyclic ring may optionally contain one or more hetero atoms selected from O, N or S; at each occurrence, R x and R y , which may be the same or different, are independently selected from hydrogen, C 1-4 alkyl, substituted or unsubstituted aryl and substituted or unsubstituted arylalkyl; R z is selected from hydrogen, C 1-4 alkyl, and substituted or unsubstituted alkoxyalkyl; dotted line [—] inside the ring represents an optional bond; with a proviso that when dotted line [—] inside the ring represents a bond, then both R 4 and R 5 are absent; ‘m’ is an integer ranging from 0 to 5, both inclusive; and ‘p’ is an integer ranging from 0 to 6, both inclusive.