Triethylamine → HCID 67301221, compound

Participants

Reaction Steps

220 mg 10% Pd/C were added to a solution of 2.2 g (4.1 mmol) of (R)-1-carboxy-2-(4-benzyloxy-phenyl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate and 450 mg (4.4 mmol) triethylamine in 90 mL MeOH and the reaction mixture was hydrogenated at 3 bar H2 for 24 h. The catalyst was filtered, washed twice with MeOH and the filtrate was evaporated down i.vac. The residue was taken up in 20 mL water and adjusted to pH 2-3 with 10% HCl. The precipitate formed was filtered, washed with a little water and dried at 50° C.

Provenance & Evidence