Dimethylcarbamoylmethyl 1'-{(r)-3-(4-benzyloxy-3,5-dimethyl-phenyl)-2-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carbonyloxy]propionyl}-1,4'-bipiperidinyl-4-carboxylate → dimethylcarbamoylmethyl 1'-{(R)-3-(4-hydroxy-3,5-dimethyl-phenyl)-2-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carbonyloxy]-propionyl}-1,4'-bipiperidinyl-4-carboxylate

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Reaction Steps

95 mg (0.11 mmol) dimethylcarbamoylmethyl 1′-{(R)-3-(4-benzyloxy-3,5-dimethyl-phenyl)-2-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carbonyloxy]-propionyl}-1,4′-bipiperidinyl-4-carboxylate in 10 mL THF were combined with 50 mg 10% Pd/C and hydrogenated at 50° C. and 50 psi hydrogen for 6 h. The catalyst was removed by suction filtering and the solvent was concentrated by evaporation i. vac. The residue was triturated with diethyl ether, suction filtered and dried.

Provenance & Evidence