1-thio-allophanic acid O-ethyl ester 、
1-thio-allophanic acid O-methyl ester 、
溴乙烷 、
碘甲烷 、
对甲苯异氰酸酯 、
2,4-二氯苯基异氰酸酯 以2.5 g (yield 81%) of the desired compound were obtained in the form of colourless prisms的产率得到3-Ethoxycarbonyl-2-ethyl-1-(p-tolylcarbamoyl)-isothiourea