反应详情

Using Method C above, (S)-but-3-yn-2-ol (36 mg, 0.53 mmol) (Aldrich) was coupled with (Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (50 mg, 0.13 mmol) (Starting Material 6) using (Ph3P)4Pd (15 mg, 0.01 mmol) and Cul (2 mg) in a mixture of DMF (3 mL) and Et3N (3 mL) as solvent at 80° C. for 5 hrs. Upon completion, the reaction mixture was diluted with EtOAc and extracted with H2O. The organic layer was dried over Na2SO4 and concentrated. (S)-(Z)-1,3-Dihydro-5-fluoro-4-(3-hydroxy-1-butynyl)-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one was obtained after silica gel column chromatography with a 0-70% EtOAc in hexanes gradient and trituration with petroleum ether. (Yield 32 mg, 75%).

1. extractionextracted with H2O
2. dry with materialThe organic layer was dried over Na2SO4
3. concentrationconcentrated