tert-butyl 3-({1-[2-(benzyloxy)-2-oxoethyl]-2,4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-3-yl}methyl)-1H-indazole-1-carboxylate → (3-{[1-(tert-butoxycarbonyl)-1H-indazol-3-yl]methyl}-2,4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-1-yl)acetic acid

Participants

Reaction Steps

(0.3 g, 0.95 mM) of tert-butyl 3-({1-[2-(benzyloxy)-2-oxoethyl]-2,4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-3-yl}methyl)-1H-indazole-1-carboxylate were dissolved in 10 ml of ethyl acetate and 50 mg of 10% Pd/C were added. Reaction mixture was hydrogenated at atm. Pressure overnight. Catalyst was removed by filtration and was solvent evaporated under reduced pressure. 0.22 g of product was obtained.

Provenance & Evidence