2-Bromo-1-(3,4-dimethoxyphenyl)ethan-1-one → Methyl 4-[4-(3,4-dimethoxyphenyl)(1,3-thiazol-2-yl)]-5-methylthiophene-2-carboxylate

Beteiligte Stoffe

Reaktionsschritte

Methyl 4-[4-(3,4-dimethoxyphenyl)(1,3-thiazol-2-yl)]-5-metltylthiophene-2-carboxylate: A solution of 257 mg (0.48 mmol, based on a mixture containing 60% nitrile) of methyl 4-(aminothioxomethyl)-5-methylthiophene-2-carboxylate was reacted with 124 mg (0.48 nmuol) of 2-bromo-(3′, 4′-dimethoxy)-acetophenone (Example 31, step (a)) was reacted in a manner similar to Example 8, step (a) to give methyl 4-[4-(3,4-dimethoxyphenyl)(1,3-thiazol-2-yl)]-5-methylthiophene-2-carboxylate (95 mg, 53%) as a solid. Mass spectrum (MALDI-TOF, CHCA matrix, m/z): Calcd. for C18H17NO4S2 376.1 (M+H), found 376.3.

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