Lithium Hydroxide → (S)-1-(1-{(R)-3-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-2-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carbonyloxy]-propionyl}-piperidin-4-yl)-4-methyl-piperazine-2-carboxylic acid

Participants

Reaction Steps

0.5 mL (1.00 mmol) 2 M LiOH solution were added to 80.0 mg (0.10 mmol) ethyl (S)-1-(1-{(R)-3-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-2-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carbonyloxy]-propionyl}-piperidin-4-yl)-4-methyl-piperazine-2-carboxylate in 1 mL THF and the reaction mixture was stirred for 20 h at RT. This was purified by HPLC without working up; the fractions containing the product were combined and lyophilised.

Provenance & Evidence