abstract |
4-(N-(Hydrocarbyloxycarbonyl)-N-(phenoxy- or pyridyloxy-phenylacetyl)-amino)-pyridine derivatives (I) are new. Pyridine derivatives of formula (I) and their N-oxides and pyridine N-protonated salts are new. R1 = alkyl, haloalkyl, alkoxy, alkylthio, alkoxyalkyl, alkylthioalkyl or optionally substituted cycloalkyl; R2 = H, alkyl, alkoxy, halo, CN, aminothiocarbonyl or optionally substituted aryl; R3 = alkyl, alkenyl or (all optionally substituted) cycloalkyl, aryl or aralkyl; R4 = CONR5R6, CSNR5R6, C(=NH)NHOR9, C(=NOH)OH, CHO, CH=NOR10, C(=NOR11)R12 or optionally substituted heterocyclyl; A = CH, CX2 or N; X1, X2 = halo, alkyl, alkoxy or haloalkyl; m = 0-4; n = 0-3, or may also be 4 if A =CX2. An Independent claim is included for the preparation of (I). |