Method for synthesising heterocyclic compounds from thiourea derivatives

摘要

Disclosed is a process for preparing heterocycles of formula I which comprises, a) reacting an isothiocyanate of formula II with a primary amine of formula III to give a thiourea of formula IV, and b) converting the thiourea of formula IV using a sulfonyl chloride R6SO2Cl in the presence of a base to the compound of the formula I.