C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/310.5
C07D 277/28 (2006.01)
Patent
CA 1221369
ABSTRACT OF THE DISCLOSURE N-methyl-S-methyl-N'-[2-(2-dimethylamino- methylthiazol-4-ylmethylthio)ethyl]isothiourea of formula (I): Image (I) is a useful intermediate useful for the preparation of nizatidine, a pharmaceutically valuable H2- receptor inhibitor, by reaction with nitromethane. This intermediate is prepared by the reaction of 2-dimethylaminomethyl-4-(2-aminoethyl)-thiomethyl- thiazole with methylcarbonimidodithioic acid, dimethyl ester in the presence of at least one mole of an acid per mole of the thiazole.
446798
Eli Lilly And Company
Gowling Lafleur Henderson Llp
LandOfFree
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