5-(5-chloro-1,2,4-thiadiazol-3-yl)thiophene-2-sulfonyl Chloride → 5-(5-Chloro-1,2,4-thiadiazol-3-yl)-N-[5-(cis-3,5-dimethyl-1-piperazinyl)-2-(methyloxy)phenyl]-2-thiophenesulfonamide

Participants

Reaction Steps

A solution of 5-(cis-3,5-dimethyl-1-piperazinyl)-2-(methyloxy)aniline (D4) (33 mg, 0.14 mmol) in dichloromethane (2 ml) and pyridine (0.5 ml) was treated with 5-(5-chloro-1,2,4-thiadiazol-3-yl)-2-thiophenesulfonyl chloride (50 mg, 0.17 mmol) and the resulting mixture stirred at room temperature overnight. The mixture was then concentrated in vacuo, co-evaporated with toluene and the crude product purified by mass directed autoprep HPLC to afford the desired product which was characterized as the hydrochloride salt. MS (ES+) m/e 500/502 [M+H]+.

Provenance & Evidence