反应详情

A mixture of tert-butyl-N-[5-(benzenesulfonamido)-6-(2-phenylethynyl)pyridin-2-yl]-carbamate C5a (37 mg, 0.08 mmol) and DCM:TFA (9:1, 4 ml) is stirred at RT for 2 h. The mixture is diluted with DCM and extracted with a saturated aqueous solution of NaHCO3. The combined organic layers are dried over MgSO4 and concentrated in vacuo. The crude D5a (27 mg) is used in the next step without further purification.

1. extractionextracted with a saturated aqueous solution of NaHCO3
2. dry with materialThe combined organic layers are dried over MgSO4
3. concentrationconcentrated in vacuo
4. customThe crude D5a (27 mg) is used in the next step without further purification