Patent ID: 6514972
Filing Date: 2003-02-04
Classification: A61P,C07D

Abstract:
A compound of the formula wherein, independently at each occurrence,v, w, and x are selected from C, N, O, and S, with H substitution as needed to fulfill open valence sites; y and z are selected from N and C, with H substitution as needed to fulfill open valence sites, with the proviso that each of w, v, x, y and z is not simultaneously C; the ring formed from v, w, x, y and z may be saturated or unsaturated; and R1, R2, R3 and R4 are selected from hydrogen, alkyl, aryl, alkaryl, aralkyl, heteroalkyl, and heteroaryl; wherein any adjacent two of R1, R2, R3 and R4 may join together with the carbon atoms they are attached to, to form a 5, 6 or 7-membered carbocyclic ring or a 5, 6 or 7-membered heterocyclic ring containing at least one atom selected from nitrogen, oxygen and sulfur, with the proviso that each of R1, R2, R3 and R4 is not simultaneously hydrogen.