反应详情

Add, to a solution of t-butoxycarbonyl-glycyl-glycine methyl ester (3.9 g.) in tetrahydrofuran (30 ml.) and water (30 ml.), 16 ml. of 1 N sodium hydroxide dropwise. Stir the mixture until homogenous (1 1/2 hours), then acidify to pH 3 with dilute hydrochloric acid and evaporate to dryness. Suspend the residue in acetone, filter and evaporate the filtrate to dryness to afford the title product (m.p. 125°-128° C.).

1. customevaporate to dryness
2. filtrationfilter
3. customevaporate the filtrate to dryness