Diisopropylethylamine → 1-[4-(4-Methanesulfonyl-phenoxymethyl)-thiazol-2-yl]-4-(2-methyl-propane-1-sulfonyl)-piperazine

Participants

Reaction Steps

A solution of 1-[4-(4-Methanesulfonyl-phenoxymethyl)-thiazol-2-yl]-piperazine hydrochloride (100 mg, 0.26 mmol) and DIPEA (134 mL, 3 eq.) in CH2Cl2 (5 mL) was added isobutanesulfonyl chloride (41 mL, 1.2 eq.). The mixture was stirred for 1 hour, then the reaction solution was directly purified on silica gel (EtOAc:hexanes=1:1) to afford the desired product as a pale yellow solid. 1H NMR (CDCl3): δ 7.87 (2H, d, J=8.8 Hz), 7.12 (2H, d, J=8.8 Hz), 6.62 (1H, s), 5.05 (2H, s), 3.61 (4H, m), 3.39 (4H, m), 3.04 (3H, s), 2.78 (2H, d, J=6.8 Hz), 2.32 (1H, m), 1.12 (6H, d, J=6.8 Hz).

Provenance & Evidence