Hydrochloric Acid → benzyl((1S)-4-amino-1-{2-[(2-{[(benzyloxy)carbonyl]amino}ethyl)amino]-2-oxoethyl}butyl)carbamate hydrochloride

Participants

Reaction Steps

8 ml of a 4M solution of hydrogen chloride in dioxane are added to a solution of 320 mg (0.287 mmol) of benzyl[2-({(3S)-3-{[(benzyloxy)carbonyl]amino}-6-[(tert-butoxycarbonyl)amino]hexanoyl}amino)ethyl]carbamate (Example 104A) in 2 ml of dioxane at 0° C. After 1 h at RT, the reaction solution is concentrated in vacuo, coevaporated with dichloromethane several times and dried under high vacuum. The crude product is reacted without further purification.

Provenance & Evidence