反应 #3689090
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US07183276B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A mixture of diethyl 4-amino-α-hydroxybenzylphosphonate (50 mg), 3-{3-[2-(1H-benzoimidazol-1-yl)-4-(4-chlorophenyl)-5-oxazolyl]propionic acid (54 mg), 1-hydroxy-7-aza-1H-1,2,3-benzotriazole (38 mg), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (43 mg) and N,N-dimethylformamide (0.5 ml) was stirred overnight at room temperature. To the reaction mixture was added 0.1N aqueous hydrochloric acid solution (2 ml) and the reaction mixture was extracted with ethyl acetate (2 ml). The organic layer was concentrated, introduced into preparative HPLC and purified to give 3-[2-(1H-benzoimidazol-1-yl)-4-(4-chlorophenyl)-5-oxazolyl]-N-(4-[(diethylphosphono)(hydroxy)methyl]phenyl}propionamide (52 mg, 58%). Recrystallization from ethyl acetate-isopropyl ether gave yellow prism crystals. melting point: 171–172° C. MS (ESI+): 609 (M+H) the reaction mixture was extracted with ethyl acetate (2 ml) The organic layer was concentrated introduced into preparative HPLC purified
来源 ID: ord-7b4ec0dce8374ff9a23c02e94f45fe50