反应详情

A mixture of 1-(benzo[d][1,3]dioxol-5-yl)-N-(5-((S)-((R)-3-(tert-butyldimethylsilyloxy)pyrrolidin-1-yl)(2-chloro-4-fluorophenyl)methyl)thiazol-2-yl)cyclopropanecarboxamide (365 mg, 0.58 mmol) and TBAF (1M in THF, 2.3 mL, 2.3 mmol) was stirred at room temperature overnight. The reaction was diluted with H2O and extracted with EtOAc. The combined organic layers were washed with brine and dried over MgSO4. After the removal of solvent, the residue was purified by column chromatography (20-50% EtOAc/Hexane) to afford 1-(Benzo[d][1,3]dioxol-5-yl)-N-(5-((S)-(2-chloro-4-fluorophenyl)((R)-3-hydroxypyrrolidin-1-yl)methyl)thiazol-2-yl)cyclopropanecarboxamide (183 mg, 61%, >99% de). 1H-NMR (400 MHz, DMSO-d6) δ 8.41 (s, 1H), 7.72 (t, J=7.1 Hz, 1H), 7.20 (d, J=8.3 Hz, 2H), 6.95 (t, J=7.2 Hz, 2H), 6.80 (td, J=8.5, 1.6 Hz, 2H), 6.73 (d, J=7.9 Hz, 1H), 5.94 (s, 2H), 4.95 (s, 1H), 4.25 (s, 1H), 2.75 (s, 1H), 2.58-2.56 (m, 1H), 2.42 (s, 1H), 2.28-2.27 (m, 1H), 2.12-2.11 (m, 1H), 1.71-1.61 (m, 3H), 1.19-1.10 (m, 2H); HPLC ret. time 2.68 min, 10-99% CH3CN, 5 min run; ESI-MS 516.2 m/z (MH+).

1. extractionextracted with EtOAc
2. washThe combined organic layers were washed with brine
3. dry with materialdried over MgSO4
4. customAfter the removal of solvent
5. customthe residue was purified by column chromatography (20-50% EtOAc/Hexane)