4-(((2-Aminoethyl)thio)methyl)-5-methylimidazole → HCID 13137353, compound

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A mixture of 2-(5-methyl-4-imidazolylmethylthio)ethylamine (1.37 g) and 2-nitroamino-5-(5-dimethylaminomethyl-2-thienylmethyl)-4-pyrimidone (2.32 g) in ethanol was heated under reflux for 48 hrs. The ethanol was evaporated at reduced pressure yielding 2-[2-(5-methyl-4-imidazolyl-methylthio)ethylamino]-5-(5-dimethylaminomethyl-2-thienylmethyl)-4-pyrimidone as a glassy residue which was washed with hot water by decantation. The residue was dissolved in isopropanol and a solution of ethanolic hydrochloric acid (3 ml) was added. Excess of solvent was removed at reduced pressure and trihydrochloride crystallized as a light buff solid (3.11 g). The solid was recrystallized from methanol-ethanol (2.36 g) 185.5°-188.5° C.

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