the method described is based on the reaction of triethylenethiophosphoramide ( thiotepa ) and triethylenephosphoramide ( tepa ) , through their ethyleneimine groups , with sodium sulphide , taurine and o-phthalaldehyde to give fluorescent products , and separation of the derivatives by reversed-phase high-performance liquid chromatography .
C0039871
thiotepa
C0039533
triethylenephosphoramide