Method of preparing pyrrolotriazin-4-one compound and method of preparing isothiocyanatoformic acid ester derivative that is a reactant used for preparing pyrrolotriazin-4-one compound

摘要

A method of preparing a pyrrolotriazin-4-one and a method of preparing the isothiocyanatoformic acid ester derivative which can be used as a reactant in that method of preparing a pyrrolotriazin-4-one. The method of preparing the pyrrolotriazin-4-one includes an addition step of an aminopyrrole derivative and the isothiocyanatoformic compound and a step of ring-closing reaction of a resulting adduct.