Compounds of the Formula:
wherein
R1 is H or C1-C3 alkyl
R2 is C1 -C3 alkyl; and
R3 is H, Cl, F, Br, CH3, CF3 or OCH3.
have utility as intermediates in the preparation of sulfonylurea derivatives which exhibit potent activity as preemergence or postemergence herbicides or as plant growth regulants.
式的化合物:
其中
R1 是 H 或 C1-C3 烷基
R2 是 C1-C3 烷基;以及
R3 是 H、Cl、F、Br、CH3、CF3 或 O 。
在制备磺酰脲类衍生物的过程中,这些衍生物作为芽前或芽后除草剂或植物生长调节剂,具有很强的活性。
Synthesis of the sulfonylpyrimidine derivatives with anticancer activity
申请人:Herbos d.d.
公开号:EP0877022A1
公开(公告)日:1998-11-11
This invention relates to the processes for the preparation of unknown N-1 sulfonyl and N-1,NH-4 disulfonyl derivatives of pyrimidine nucleo bases, general formulae I, II, III, IV, V and VI, and their biological activity.
This type of compounds exhibits strong anticancer activity in vitro on different tumor cell lines whereas cytostatic behavior on normal human fibroblasts is much less pronounced.