反应详情

A mixture of methyl 7-{4-fluoro-2-[(Z)-3-((R)-3-acetoxypyrrolidin-1-yl)prop-1-enyl]benzenesulfonylamino}-4H-furo[2,3-c]chromene-6-carboxylate (Intermediate 82, 0.092 g) and lithium hydroxide monohydrate (0.039 g) in water (2 mL) and dioxane (4 mL), was scaled in a microwave vial and irradiated in the microwave at 110° C. for 20 minutes. After cooling, the mixture was diluted with water (20 mL), acidified with formic acid to pH 4-5 and extracted into DCM. The organic layer was dried (MgSO4) and filtered. The filtrate was concentrated in vacuo and the residue was purified by HPLC (C6 Ph) eluting with a mixture of acetonitrile and water, containing 0.1% formic acid, with a gradient of 30-60%, to give 7-{4-fluoro-2-[(Z)-3-((R)-3-hydroxypyrrolidin-1-yl)-prop-1-enyl]-benzenesulfonylamino}-4H-furo[2,3-c]chromene-6-carboxylic acid (0.004 g).

1. customirradiated in the microwave at 110° C. for 20 minutes
2. temperatureAfter cooling
3. extractionextracted into DCM
4. dry with materialThe organic layer was dried (MgSO4)
5. filtrationfiltered
6. concentrationThe filtrate was concentrated in vacuo
7. customthe residue was purified by HPLC (C6 Ph)
8. washeluting with a mixture of acetonitrile and water
9. additioncontaining 0.1% formic acid