Triethylamine → HCID 58531490, compound

Participants

Reaction Steps

To a solution of 3,5-dichlorobenzenesulfonyl chloride (27.0 mg, 0.11 mmol) in CH2Cl2 (3 mL) was added 3,5-dichloro-N-(4-fluorobenzyl)-N-(3-(4-fluorophenoxy)-5-((isobutylamino)methyl)benzyl)-2-hydroxybenzenesulfonamide (70 mg, 0.11 mmol, 80% purity), followed by the addition of Et3N (0.09 mL, 0.66 mmol). The reaction mixture was stirred at rt for 1 h. The reaction mixture was diluted with CH2Cl2 and saturated NaHCO3 solution. The organic layer was concentrated. To the residue was added 1 N NaOH/MeOH/THF. The resulting mixture was left for 2 h. The mixture was concentrated and the residue was diluted with CH2Cl2 and water. The organic layer was concentrated. The residue was dissolved in MODEL and purified by preparative HPLC. Fractions containing the desired product were combined, concentrated, and lyophilized to give a white solid (35 mg, 38%). 1H NMR (CD3OD): δ 7.67-7.63 (m, 4H), 7.57 (d, J=2.8 Hz, 1H), 7.14-7.04 (m, 4H), 6.91 (t, J=8.8 Hz, 2H), 6.87-6.83 (m, 2H), 6.70 (s, 1H), 6.63 (s, 1H), 6.56 (s, 1H), 4.40 (s, 2H), 4.32 (s, 2H), 4.21 (s, 2H), 2.91 (d, J=7.6 Hz, 2H), 1.65 (m, 1H), 0.74 (d, J=6.4 Hz, 6H); MS (ESI): (M−H)−=843.0.

Provenance & Evidence