| 摘要 |
Title compds. (I; R1 and R2 are same or not, H, lower alkyl, cycloalkyl, lower alkenyl, aralkyl; R3 = H, lower alkyl, lower alkenyl or alkoxyalkyl; X = -CH2, O or S; Y = =S, =O, =NR5 or CHR6; Alk = C1-6 alkylene; R5 = H, nitro, cyano, lower alkyl, aryl, alkylsulfonyl or arylsulfonyl; R6 = nitro, arylsulfonyl, alkylsulfonyl; m = 2-4; n = 1-2) were prepd. by the reaction of compd. II(A = H or IV(P = separating group; Q = =NR5 or -CHR6; or A and B are =CS) and III(Z = H, Z' = H or IV; or Z and Z' are =CO or =CS).
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