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

Participants

Reaction Steps

A rt suspension of tert-butyl methyl((S)-1-((2S,3S)-2-methyl-5-((3-methylquinolin-4-yl)methyl)-1-(2-(methylsulfonyl)acetyl)-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl)carbamate (140 mg, 215 μmol) in 4 M HCl in dioxane (1.07 ml) was stirred for 2 h. The reaction was diluted with Et2O and the solids were collected by vacuum filtration, taken up in MeCN—H2O, and lyophilized to provide (S)-N-((2S,3S)-2-methyl-5-((3-methylquinolin-4-yl)methyl)-1-(2-(methylsulfonyl)acetyl)-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-yl)-2-(methylamino)propanamide hydrochloride (113.4 mg, 90%) as a white solid. MS m/z 552 (MH)+.

Provenance & Evidence