反应详情

To a solution of (1R,3S)-3-isopropyl-3-{[7-(trifluoromethyl)-3,4-dihydroisoquinolin-2(1H)-yl]carbonyl}cyclopentanamine TFA salt (30.0 mg, 0.0846 mmol) from Step C-2 of Example 1 and 4-hydroxy-4-(1,3-thiazol-5-yl)cyclohexanone (23.4 mg, 0.119 mmol) in dichloromethane (8 mL) was added triethylamine (0.0236 mL, 0.169 mmol) followed by sodium triacetoxyborohydride (42 mg, 0.20 mmol) at room temperature. After being stirred overnight, the mixture was diluted with dichloromethane and neutralized with saturated NaHCO3. The organic layer was washed with brine, dried over Na2SO4 and concentrated. The residue was purified by flash chromatography on silica gel eluting with 5% MeOH/CH2Cl2 to give two isomers. LC-MS for both isomers: calculated for C28H36F3N3O2S (M+H)+536; found 536.2.

1. washThe organic layer was washed with brine
2. dry with materialdried over Na2SO4
3. concentrationconcentrated
4. customThe residue was purified by flash chromatography on silica gel eluting with 5% MeOH/CH2Cl2
5. customto give two isomers