4-Bromo-3-methylisoxazol-5-amine → N-(4-Bromo-3-methyl-5-isoxazolyl)-5-(4-ethylphenyl)thiophene-2-sulfonamide

Participants

Reaction Steps

N-(4-Bromo-3-methyl-5-isoxazolyl)-5-(4-ethylphenyl)thiophene-2-sulfonamide was prepared in the same manner as described in Example 2. Reaction of 5-chlorosulphonyl-2-(4-ethylphenyl) thiophene (47.1 mg, 11.16 mmol) with 5-amino-4-bromo-3-methyl isoxazole (29 mg, 0.16 mmol) yielded, after flash chromatography using 10% MeOH/CHCl3, a pale brown solid (46 mg, 66% yield), m.p. 172°-175° C.

Provenance & Evidence