| 摘要 |
Quinazoline derivatives of the formula …<CHEM>… wherein R is… 1) hydrogen… or 2) a straight or branched chain saturated or unsaturated hydrocarbon group, or … 3) a straight or branched chain saturated or unsaturated hydrocarbon group which is substituted by at least one heteroatom, the or each heteroatom being halogeno when R is a C1 hydrocarbon group, by a saturated carbocyclic group or by a group containing at least one heteroatom, the or each heteroatom being O, N or S when R contains a cyclic group;… n is 0, 1 or 2; Z represents-CH=CH- or -O- or -S-; X or,when n is an integer of at least 2, each X independently, represents a halogeno, C1-C4 alkyl, aryl or aralkyl group or a group including at least one heteroatom and Y represents a group of formula: …<CHEM>… |
