Patent ID: 7244758

Claim:
A compound of the formula or the salts thereof, including all stereoisomeric forms thereof wherein: Y is (X 2 ) l A or (X 1 ) m CR 4 A 2 ; W is CR 4 or N; n is 0-3; l and m are independently 0 or 1; each X 1 and X 2 is independently optionally substituted alkylene (1-10C) or alkenylene (2-10C) wherein one or more said C may optionally be replaced by N or O; each A is independently a 5-7 membered optionally substituted carbocyclic aromatic or aliphatic ring; wherein each R 1 is independently optionally substituted lower alkyl (1-6C), optionally substituted lower alkenyl (2-6C), or optionally substituted lower alkynyl (2-6C), each optionally including one or more heteroatoms selected from O, N and S or is an inorganic substituent; wherein each R 2 is independently H, lower alkyl, lower alkenyl or halo; wherein R 3 is H, lower alkyl, lower alkenyl, or lower acyl, wherein one or more carbons of each of the foregoing is replaced with a heteroatom; and wherein R 4 is H, alkyl, alkenyl, arylalkyl, arylalkenyl, hydroxy, alkoxy, sulfhydryl, alkylsulfhydryl, amino or alkylamino.