反应详情

A solution of N-((1S)-2-amino-1-{[4-(8-bromoimidazo[1,2-a]pyridin-2-yl)phenyl]methyl}ethyl)-3-chloro-4-[(1-methylethyl)oxy]benzamide (0.28 mmol), N-{[(1,1-dimethylethyl)oxy]carbonyl}-D-alanine (0.56 mmol), EDCI (0.56 mmol), and TEA (1.12 mmol) stirred in methylene chloride (2 mL) at RT for 18 h. The reaction was then treated with 4 M HCl in 1,4-dioxane (2 mL) and stirred at RT for 1 h. The mixture was then concentrated in vacuo, redissolved in ethyl acetate (25 mL) and washed with saturated aqueous sodium bicarbonate solution (1×10 mL). The organic layer was concentrated in vacuo, and purification of the residue by Gilson reverse phase HPLC afforded the title product as a white solid (25%). ESMS [M+H]+: 613.2.

1. concentrationThe mixture was then concentrated in vacuo
2. dissolutionredissolved in ethyl acetate (25 mL)
3. washwashed with saturated aqueous sodium bicarbonate solution (1×10 mL)
4. concentrationThe organic layer was concentrated in vacuo, and purification of the residue by Gilson reverse phase HPLC