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

Participants

Reaction Steps

A rt solution of tert-butyl methyl((S)-1-((2S,3S)-2-methyl-1-(2-(methylsulfonyl)acetyl)-4-oxo-5-(quinolin-4-ylmethyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl)carbamate (56 mg, 87.8 μmol) in 4 M HCl in dioxane (439 μl) was stirred for 1 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-1-(2-(methylsulfonyl)acetyl)-4-oxo-5-(quinolin-4-ylmethyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-yl)-2-(methylamino)propanamide hydrochloride (43.2 mg, 75.2 μmol, 85.7% yield) as a white solid. MS m/z 538 (MH)+.

Provenance & Evidence