反应详情

To a solution of methyl [trans-4-(4-{[(benzyloxy)carbonyl]amino}phenyl)cyclohexyl]acetate (3.34 g, 8.76 mmol) in THF (42 mL) and MeOH (42 mL) was added 0.6M aqueous lithium hydroxide (43.6 mL, 26.27 mmol) and the mixture stirred at ambient temperature for 18 hours. The mixture was partitioned between EtOAc (200 mL) and 1M HCl (100 mL). The organic phase was concentrated in vacuo and the residue partitioned between EtOAc (300 mL) and brine (20 mL). The organic phase was dried (MgSO4), filtered and evaporated to give the title compound (3.19 g, 99%) as a white solid; 1H NMR (CDCl3) δ 1.05-1.15 (2H, m), 1.36-1.46 (2H, m), 1.74-1.87 (5H, m), 2.22 (2H, d), 2.34-2.41 (1H, m), 5.13 (2H, s), 6.58 (1H, s), 7.07 (2H, d), 7.21 (3H, t), 7.28-7.35 (4H, m); MS m/e (MH)+ 368

1. customThe mixture was partitioned between EtOAc (200 mL) and 1M HCl (100 mL)
2. concentrationThe organic phase was concentrated in vacuo
3. customthe residue partitioned between EtOAc (300 mL) and brine (20 mL)
4. dry with materialThe organic phase was dried (MgSO4)
5. filtrationfiltered
6. customevaporated