Benzenesulfonyl chloride → HCID 22149018, compound

Participants

Reaction Steps

A mixture of N-(t-butoxycarbonyl)-2-(6H-thieno[2,3-b]pyrrol-4-yl)ethylamine (54 mg, 0.2 mmol), phenylsulfonyl chloride (70 mg, 0.22 mmol) and KOt-Bu (0.22 mL 1 M solution in THF, 0.22 mmol) in THF is shaken at ambient temperatures for 8 h and concentrated in vacuo. The resultant residue is dissolved in THF, treated with 4N HCl in dioxane (2 mL) shaken at room temperature for 16 h and concentrated in vacuo. This residue is dissolved in a mixture of DMSO, methanol and water and purified by preparative HPLC1, to afford the title product, [M+H]307, retention time (RT) 1.53 min. 1 Gilson Preparative HPLC conditions: Gilson Preparative HPLC system; YMC Pro-C18, 20 mm×50 mm ID, 5 uM column; 2 mL injection; Solvent A: 0.02% TFA/water; Solvent B:0.02% TFA/acetonitrile; Gradient: Time 0: 95% A; 2 min: 95% A; 14 min: 10% A, 15 min: 10% A, 16 min: 95% A; Flow rate 22.5 mL/min; Detection: 254 nm DAD.

Provenance & Evidence