(Methoxycarbonylsulfamoyl)triethylammonium hydroxide → Ethyl 6-{[5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl]methyl}-benzothiophene-2-carboxylate

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Reaction Steps

A solution of ethyl 6-{2-[2-(4-methoxybenzoyl)hydrazino]-2-oxoethyl}-1-benzothiophene-2-carboxylate (78 mg, 0.19 mmol) and (methoxycarbonylsulfamoyl)-triethylammonium hydroxide, inner salt (113 mg, 0.47 mmol) in THF was heated to 100° C. in the microwave for 10 minutes. The reaction was filtered through a pad of silica and washed with ethyl acetate. The organics were evaporated to dryness to give 70 mg (94%) of the title compound as a clear oil. LC/MS (EI): cal'd 395.1 (MW), exp 395.1 (MW).

Provenance & Evidence