本文对S—烷基—O—基硫代(赶)磷酰胺类化合物的合成进行了探讨,并合成了八个这类化合物,它们都是文献上未曾报导过的。对其中某些化合物进行了初步的毒性和药效测定,并与其异构体O—烷基—O—(邻烷氧基羰基苯基)—硫代(逐)磷酰胺化合物进行了某些对比,发现两者在毒性和杀虫谱方面都有所不同。 In this paper, the synthesis of S-alkyl-O-methylthiophosphoramidates has been discussed and eight of these compounds have been synthesized, none of which are reported in the literature. Some of these compounds were initially tested for toxicity and pharmacodynamics and were compared with their isomer O-alkyl-O- (ortho-alkoxycarbonylphenyl) -thio (phosphoramidate) compounds , Both found to be different in toxicity and insecticidal spectrum.