FIELD: chemical biologically active substances.
SUBSTANCE: invention relates to new synthetic, chemical biologically active substances from a number of heterocyclic compounds. 3-benzyl-2,5-bis(4-methoxyphenyl)-7-thioxo-2,3,5,6,7,8-hexahydropyrimido[4,5-d]pyrimidine-4(1H )-on:
.
EFFECT: compound 3-benzyl-2,5-bis(4-methoxyphenyl)-7-thioxo-2,3,5,6,7,8-hexahydropyrimido[4,5-d]pyrimidin-4(1H)-on provides extensions arsenal of biologically active substances obtained synthetically, used to protect sunflower plants from the phytotoxic effect of the herbicide 2,4-dichlorophenoxyacetic acid.
1 cl, 2 tbl, 2 ex
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