Water → HCID 86760995, compound

Participants

Reaction Steps

To a solution of the compound (31.8 mg) obtained in Example 25 in DMF (2.0 ml), Et3N (8.4 μl ) was added, Boc-glycine (21 mg) and WSC.HCl (23 mg) were added at room temperature and the reaction mixture was stirred at room temperature for 24 hours. The reaction mixture was poured into water, and then the product was extracted with ethyl acetate. The organic layer was washed with an aqueous 10% citric acid solution and saturated brine, and dried, and the solvent was evaporated under reduced pressure, and then the residue was purified by preparative HPLC. A 4 N hydrogen chloride/ethyl acetate solution was further added thereto, and the reaction mixture was stirred for 1 hour, and then the solvent was evaporated. The obtained residue was dissolved in ethyl acetate, washed with an aqueous saturated sodium hydrogen carbonate solution and brine, dried, and then the solvent was evaporated under reduced pressure to obtain the title compound.

Provenance & Evidence