反应详情

A mixture of intermediate (10) (0.007 mol) and Na2CO3 (0.007 mol) in DMF (50 ml) was stirred at room temperature. Methyl 2-bromo-2-phenylacetate (0.007 mol) was added dropwise. The mixture was stirred for 3 hours. The solvent was evaporated. The residue was triturated under hexane, filtered off and dried, yielding 3.37 g of methyl α-phenyl-4-[4-[[[4′-(trifluoromethyl)[1,1′-biphenyl]-2-yl]carbonyl]amino]-phenyl]-1-piperidineacetate (intermediate 11, mp. 138° C.).

1. stirringThe mixture was stirred for 3 hours
2. customThe solvent was evaporated
3. customThe residue was triturated under hexane
4. filtrationfiltered off
5. customdried