Dimethylformamide → (S)-2-(3-Benzothiazol-6-yl-phenylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester

Participants

Reaction Conditions

Reaction Steps

A solution of (S)-2-[3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester (74 mg, 0.16 mmol), 6-bromo-benzothiazole (34.9 mg, 0.16 mmol), and Pd[P(Ph)3]4 (12.1 mg, 6.4 mol %) in methanol (2 mL), NaHCO3 (sat. aq., 300 μL), and DMF (400 μL) was degassed and heated to 70° C. overnight in a sealed vial. The reaction was cooled, filtered, and purified by reverse phase HPLC to give the desired product. Yield 5.6 mg. MS: 458.1 (M+H+); H1 NMR (DMSO-d6): δ (ppm) 1.18-1.25 (m, 2H), 1.76-2.00 (m, 3H), 2.10-2.34 (m, 1H), 4.28-4.40 (m, 1H), 4.87-5.10 (m, 2H), 7.00-7.56 (m, 7H), 7.68-7.66 (m, 1H), 7.97-8.15 (m, 2H), 8.33-8.39 (m, 1H), 9.35-9.39 (s, 1H), 10.09-10.16 (s, 1H).

Provenance & Evidence