Water → HCID 59389336, compound

A 1 mol/L tetrabutylammonium fluoride-tetrahydrofuran solution (35.1 mL) was added dropwise to a solution of the compound of Example 325 (8.76 g) in tetrahydrofuran (120 mL) at 0° C. The mixture was stirred at 0° C. for 30 min. Subsequently, water was added and the mixture was extracted with ethyl acetate (300 mL). The organic layer was washed sequentially with water and saturated brine and dried over anhydrous sodium sulfate. The extract was concentrated and purified by silica gel column chromatography (hexane:ethyl acetate=3:1) to afford the title compound as a colorless powder (6.00 g).

1. extractionthe mixture was extracted with ethyl acetate (300 mL)
2. washThe organic layer was washed sequentially with water and saturated brine
3. dry with materialdried over anhydrous sodium sulfate
4. concentrationThe extract was concentrated
5. custompurified by silica gel column chromatography (hexane:ethyl acetate=3:1)

ORD record

ord-b31e7e7e7c5642df8701eddff4ac7773

Source dataset

uspto-grants-2010_07

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07763617B2