反应详情

PS-DCC (1.15 g, 1.44 mmol, loading: 1.25 mmol/g) is suspended in THF (15 mL). Phenyl-o-methylphenylamino-acetic acid hydrochloride (I38) (200 mg, 0.72 mmol) and HOBT (221 mg, 1.44 mmol) are added, followed by (R)-quinuclidin-3-ol (275 mg, 2.16 mmol) and the mixture is shaken for 16 hours at RT. PS-DCC is filtered off and the filtrate is evaporated. The resulting residue is dissolved in EtOAc and washed sequentially with water, sat. NaHCO3, water and brine. The organic layer is dried over Na2SO4, filtered and evaporated to give the title compound as a colorless oil (260 mg, quantitative yield, mixture of diastereoisomers).

1. filtrationPS-DCC is filtered off
2. customthe filtrate is evaporated
3. dissolutionThe resulting residue is dissolved in EtOAc
4. washwashed sequentially with water, sat. NaHCO3, water and brine
5. dry with materialThe organic layer is dried over Na2SO4
6. filtrationfiltered
7. customevaporated