反应详情

A reaction mixture was prepared from 1.26 g. of 2-(2-dimethylaminomethyl-4-thiazolylmethylthio)ethylamine and 1.36 g. of 2-methylthio-5-(3-pyridyl)methoxy-4-pyrimidone in 20 ml. of pyridine. The reaction mixture was heated to reflux temperature for about 2 days. The pyridine was then removed by evaporation in vacuo and the resulting residue subjected to high pressure liquid chromatography over silica. Fractions shown by tlc to contain the desired compound were combined and the combined fractions rechromatographed on a silica preparative plate using 3% ammoniated ethanol as the solvent. 2-[2-(2-Dimethylaminomethyl-4-thiazolylmethylthio)ethyl]amino-5-(3-pyridyl)methoxy-4-pyrimidone free base thus obtained was converted to the trihydrochloride salt by standard procedures. Recrystallization of the crude trihydrochloride salt from ethanol yielded 2-[2-(2-dimethylaminomethyl-4-thiazolylmethylthio)ethyl]amino-5-(3-pyridyl)methoxy-4-pyrimidone trihydrochloride melting at 183°-185° C.

1. customA reaction mixture was prepared from 1.26 g
2. temperatureThe reaction mixture was heated
3. temperatureto reflux temperature for about 2 days
4. customThe pyridine was then removed by evaporation in vacuo
5. customthe combined fractions rechromatographed on a silica preparative plate