a means to control the vermin in this house

摘要

Procedure for the preparation of thiol esters of amidino-phosphoric acid of the formula: ** (Formula) ** in which R1 signifies hydrogen, C1-C4 alkyl or cyclopropyl, R2 signifies C3-C5 alkyl and R3 signifies methyl or ethyl, while Z represents oxygen or sulfur, which constitute the active matter in the composition of antiparasitic agents, especially suitable for fighting nematodes. (Machine-translation by Google Translate, not legally binding)