反应详情

To a solution of ethyl 2-(2-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)acetate (1.25 g, 5.23 mmol) in EtOH/H2O (100 mL) was added NaOH (1.1 g, 26.15 mmol). The reaction mixture was stirred at room temperature until TLC showed completion. The reaction mixture was concentrated and the residue taken up in water (15 mL) and treated with 2M HCl until pH=3 then extracted with EA (2×25 ml). The combined organic layers were washed with brine (100 mL), dried over Na2SO4 and concentrated to yield the title product (600 mg, Yield 50%). The crude product was used in next step without further purification. LCMS (m/z): 212.0 (M+1).

1. concentrationThe reaction mixture was concentrated
2. additiontreated with 2M HCl until pH=3
3. extractionthen extracted with EA (2×25 ml)
4. washThe combined organic layers were washed with brine (100 mL)
5. dry with materialdried over Na2SO4
6. concentrationconcentrated