5-Bromothiophene-2-sulfonyl chloride → 5-Bromo-N-{5-(cis-3,5-dimethyl-1-piperazinyl)-2-[(phenylmethyl)oxy]phenyl]-2-thiophenesulfonamide

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Reaction Steps

A solution of 5-(cis-3,5-dimethyl-1-piperazinyl)-2-[(phenylmethyl)oxy]aniline (D39) (300 mg, 0.96 mmol) in dichloromethane (5 ml) and pyridine (5 ml) was added 5-bromo-2-thiophenesulfonyl chloride (505 mg, 1.93 mmol) and the mixture stirred at room temperature for 4 hours. The mixture was then reduced in vacuo and the residue purified by SCX (eluting with methanol then ammonia 2M in methanol). The appropriate fractions were combined and reduced and the residue purified by trituaration with methanol to afford the title compound (D42). MS (ES+) m/e 536/538 [M+H]+.

Provenance & Evidence