4-Methylmorpholine → 4-Bromo-N-[5-(cis-3,5-dimethyl-1-piperazinyl)-2-(methyloxy)phenyl]-2-methylbenzenesulfonamide

Participants

Reaction Steps

A solution of 5-(cis-3,5-dimethyl-1-piperazinyl)-2-(methyloxy)aniline (D4) (1.20 g, 5.1 mmol) in dichloromethane (35 ml) was treated with morpholinomethyl-polystyrene HL resin (2.43 g, 4.2 mmol/g loading, 10.2 mmol) followed by 4-bromo-2-methylbenzenesulfonyl chloride (2.75 g, 10.2 mmol). The resulting solution was stirred at room temperature overnight, the resin filtered off, the solvent evaporated in vacuo and the residue passed through an SCX column eluting first with methanol and then 2M ammonia in methanol. The basic fractions were combined and solvent evaporated in vacuo to afford a crude product which was purified further by chromatography on silica gel using a Flashmaster and an elution gradient of 0 to 10% methanol in dichloromethane. The relevant fractions were combined and the solvent evaporated in vacuo to afford the title compound (E102). MS (ES+) m/e 468/470 [M+H]+.

Provenance & Evidence