反应详情

温度

60 °C

An opaque brown solution of Intermediate 1d (171 mg, 1.05 mmol) and sodium hydride (60% dispersion in oil, 120 mg, 3.00 mmol) in dry DMF (2 mL) was stirred at RT under Argon for 30 min. Intermediate 34b (219 mg, 1.00 mmol) was added, and the resulting dark solution stirred at 60° C. for 2 h. The cooled solution was concentrated in vacuo, redissolved in MeOH (2 mL), applied to an SCX-2 cartridge, and washed with MeOH. The product was eluted with 2M NH3 in MeOH; concentration in vacuo left a brown oil. Flash chromatography (silica 25 g, 2-10% [2M NH3 in MeOH] in DCM) gave a yellow oil. Freeze-drying from MeCN-water (1:2, 3 mL) left the title compound as a pale yellow solid (203 mg, 56%). LCMS (Method 3): Rt 2.29 min, m/z 363 [MH+].

1. concentrationThe cooled solution was concentrated in vacuo
2. dissolutionredissolved in MeOH (2 mL)
3. washwashed with MeOH
4. washThe product was eluted with 2M NH3 in MeOH
5. concentrationconcentration in vacuo
6. waitleft a brown oil
7. customFlash chromatography (silica 25 g, 2-10% [2M NH3 in MeOH] in DCM) gave a yellow oil
8. dry with materialFreeze-drying from MeCN-water (1:2, 3 mL)
9. waitleft the title compound as a pale yellow solid (203 mg, 56%)