Abstract: A compound of general formula (I) wherein R1 and R2 are H, C1-C6alkyl or (CH2)d(C3-C6cycloalkyl) wherein d=0, 1, 2 or 3; or R1 and R2 together with the nitrogen to which they are attached form an azetidine ring; Z or Y is —SR3 and the other Z or Y is halogen or —R3; wherein R3 is C1-C4 alkyl optionally substituted with fluorine; except that R3 is not CF3; or Z and Y are linked so that, together with the interconnecting atoms, Z and Y form a fused 5 to 7-membered carbocyclic or heterocyclic ring, and wherein when Z and Y form a heterocyclic ring, in addition to carbon atoms, the linkage contains one or two heteroatoms independently selected from oxygen, sulfur and nitrogen; R4 and R5, which may be the same or different, are: A—X, wherein A=—CH═CH— or —(CH2)p— where p is 0, 1 or 2; X is hydrogen, F, Cl, Br, I, CONR6R7, SO2NR6R7, SO2NHC(═O)R6, OH, C1-4alkoxy, NR8SO2R9, NO2, NR6R11, CN, CO2R10, CHO, SR10, S(O)R9 or SO2R10; or a 5- or 6-membered het

Abstract: A compound of general formula (I) wherein R1 and R2 are H, C1-C6alkyl or (CH2)d(C3-C6cycloalkyl) wherein d=0, 1, 2 or 3; or R1 and R2 together with the nitrogen to which they are attached form an azetidine ring; Z or Y is —SR3 and the other Z or Y is halogen or —R3; wherein R3 is C1-C4 alkyl optionally substituted with fluorine; except that R3 is not CF3; or Z and Y are linked so that, together with the interconnecting atoms, Z and Y form a fused 5 to 7-membered carbocyclic or heterocyclic ring, and wherein when Z and Y form a heterocyclic ring, in addition to carbon atoms, the linkage contains one or two heteroatoms independently selected from oxygen, sulfur and nitrogen; R4 and R5, which may be the same or different, are: A—X, wherein A═—CH═CH— or —(CH2)p— where p is 0, 1 or 2; X is hydrogen, F, Cl, Br, I, CONR6R7, SO2NR6R7, SO2NHC(═O)R6, OH, C1-4alkoxy, NR8SO2R9, NO2, NR6R11, CN, CO2R10, CHO, SR10, S(O)R9 or SO2R10; or a 5- or 6-membered heter