反应详情

To a flask was added 20% Pd(OH)2 on carbon (3.1 g), compound B (3.3 g, 12.5 mmol) in MeOH (200 mL) and water (10 mL), while being exposed to H2 (40 psi). After 2.5 h, the reaction mixture was filtered through celite and concentrated in vacuo. Water was then added (50 mL) and the mixture brought to pH 12 (by addition of 1 N NaOH) and extracted with DCM (3×50 mL). The combined organic layers were dried over MgSO4, filtered, and concentrated in vacuo to give compound C (2.0 g, 11.7 mmol, 94%) as a colorless oil. LC-MS [M+H] 686.5 (C35H51N5O7S+H, calc: 685.9). Compound C was used without further purification.

1. filtrationthe reaction mixture was filtered through celite and
2. concentrationconcentrated in vacuo
3. additionWater was then added (50 mL)
4. additionthe mixture brought to pH 12 (by addition of 1 N NaOH)
5. extractionextracted with DCM (3×50 mL)
6. dry with materialThe combined organic layers were dried over MgSO4
7. filtrationfiltered
8. concentrationconcentrated in vacuo