反应详情

To a solution of ethyl [(1S)-5-(3-{[5-(4,5-dimethyl-1,3-thiazol-2-yl)-2-pyridinyl]oxy}propoxy)-2,3-dihydro-1H-inden-1-yl]acetate (Example 260) (80 mg, 0.17 mmol) in THF (2 mL), methanol (2 mL) and water (1 mL) was added LiOH (40 mg, 1.74 mmol). The reaction mixture was stirred at rt for 18 h, and then concentrated under reduced pressure. The residue was taken up in water and acidified with a 5% aqueous solution of H3PO4, and extracted with EtOAc. The combined organic layers were dried (Na2SO4) and concentrated under reduced pressure to give the product (67 mg, 89%). 1H NMR (400 MHz, CD2Cl2) δ 8.57 (d, 1H), 8.06 (dd, 1H), 7.09 (d, 1H), 6.85 (d, 1H), 6.80 (d, 1H), 6.71 (dd, 1H), 4.53 (t, 2H), 4.15 (t, 2H), 3.49 (qt, 1H), 2.92-2.75 (m, 2H), 2.71 (dd, 1H), 2.45-2.28 (m, 8H), 2.32-2.22 (m, 2H), 1.82-1.70 (m, 1H); LC-MS: RT=3.41 min, (M+H)+ 439.0.

1. concentrationconcentrated under reduced pressure
2. extractionextracted with EtOAc
3. dry with materialThe combined organic layers were dried (Na2SO4)
4. concentrationconcentrated under reduced pressure