Hydrochloric Acid → (S)-N-((3S,4S)-1-((6-bromo-2-methoxynaphthalen-1-yl)methyl)-4-methyl-5-(2-(methylsulfonyl)acetyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-yl)-2-(methylamino)propanamide hydrochloride

Participants

Reaction Steps

To a rt solution of tert-butyl(S)-1-((3S,4S)-1-((6-bromo-2-methoxynaphthalen-1-yl)methyl)-4-methyl-5-(2-(methylsulfonyl)acetyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl(methyl)carbamate (80 mg, 107 μmol) in MeOH (107 μl) was added 2 M HCl in Et2O (429 μl). The reaction was stirred at rt for 2 h then concentrated, taken up in H2O, and lyophilized to provide (S)-N-((3S,4S)-1-((6-bromo-2-methoxynaphthalen-1-yl)methyl)-4-methyl-5-(2-(methylsulfonyl)acetyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-yl)-2-(methylamino)propanamide hydrochloride (65.7 mg, 90%) as a white solid. MS m/z 645/647 (MH)+.

Provenance & Evidence