5-Chloro-3-methylbenzo(b)thiophene-2-sulfonyl chloride → HCID 18180112, compound

Participants

Reaction Steps

A solution of 3-methoxy-4-(4-methylpiperazin-1-yl)phenylamine (D35) (50 mg, 0.23 mmol) and 5-chloro-3-methylbenzo[b]thiophene-2-sulfonyl chloride (64 mg, 0.23 mmol) in dichloromethane (2 ml) was allowed to stand at room temperature overnight. The reaction mixture was diluted with dichloromethane and washed with potassium carbonate (aq), which was back-extracted with further dichloromethane. The combined organic phases were dried (Na2SO4) and evaporated under reduced pressure to give a crude product, which was purified by chromatography on silica gel, eluting with methanol and dichloromethane. This gave the title compound (E128) as an off-white solid (36 mg, 34%) MH+=466.

Provenance & Evidence