| abstract |
This invention relates to compounds of the formula R5/Wherein:A is nitrogen or CR7 B is NR'R2, -CR'R2R10, -C(=CR2Rn)Rl, -NHCR:R2R10, -OCR'R'R13, -SCR'R^10, -CR'R^NHR1, -CR2RiaORl, -CR;RIOSRS or -COR2, and is single bonded to D; or 3 is CR'R2, and is double bonded to D and D is carbon; D and G are nitrogen; E and K are carbon; Z is NK, oxygen,, sulphur, -IMCd-G, alkyl) or CR13R" Wherein R13 and Ru are independently selected from Hydrogen and methyl with the exception that one R13 and R1J may optionally be cyano; With proviso that in the six or seven numbered rings cf Structures in formula I there can not be two double Bands adjacent to each other; R3 and R3 are as defined in the general descriotion. |