反应详情

HBTU (37 mg, 0.098 mmol) was added to a solution of (5R,7R)-5-methyl-4-(piperazin-1-yl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-7-ol dihydrochloride (30 mg, 0.098 mmol) and 4-(tert-butoxycarbonylamino)-2-(4-chlorophenyl)-4-methylpentanoic acid (33 mg, 0.098 mmol) in DCM (5 mL) and TEA (1 mL). The mixture was stirred at room temperature for 1 hour. The solvent was removed, and the residue was dissolved in ethyl acetate (50 mL) and washed with brine (5×50 mL). The organic phase was dried and concentrated to afford the product. The product was treated with HCl to afford 4-amino-2-(4-chlorophenyl)-1-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-4-methylpentan-1-one as HCl salt (22 mg, 49%).

1. customThe solvent was removed
2. dissolutionthe residue was dissolved in ethyl acetate (50 mL)
3. washwashed with brine (5×50 mL)
4. customThe organic phase was dried
5. concentrationconcentrated
6. customto afford the product