HCID 178456085, compound → tert-butyl 2-amino-4-[(1R)-1-({[(6S)-6-(5-chloro-2-methoxybenzyl)-3-methyl-7-oxo-6,7-dihydro-5H-[1,2,4]triazolo[4,3-a][1,4]diazepin-8(9H)-yl]carbonyl}amino)propyl]benzoate

Participants

Reaction Conditions

Reaction Steps

The compound 87a obtained at Step (1) (58.2 mg) was dissolved in 1,4-dioxane (1.5 ml), and the mixture was stirred at 100° C. for 30 minutes. The reaction solution was concentrated, then the residue was purified by flash column chromatography (silica gel, chloroform/ethyl acetate/methanol=7/7/2) to obtain tert-butyl 2-amino-4-[(1R)-1-({[(6S)-6-(5-chloro-2-methoxybenzyl)-3-methyl-7-oxo-6,7-dihydro-5H-[1,2,4]triazolo[4,3-a][1,4]diazepin-8(9H)-yl]carbonyl}amino)propyl]benzoate (compound 87b) (33.4 mg).

Provenance & Evidence