2-Bromo-2-methylpropanoyl cyanide → 5-(4-methoxyphenyl)-2,2-dimethyl-4-(4-(quinolin-2-ylmethoxy)phenyl)furan-3(2H)-one

To a room temperature, stirred solution of 1-(4-methoxyphenyl)-2-(4-(quinolin-2-ylmethoxy)phenyl)ethanone (100 mg, 0.26 mmol) in THF (5 mL), t-BuOK (1.0 mL, 1.0 N solution in THF) was added under an inert atmosphere and the resulting mixture was stirred for 30 min. 2-Bromo-2-methylpropanoyl cyanide (90 mg, 0.5 mmol) was then added to the reaction mixture and stirring was continued for an additional 16 h. The reaction mixture was quenched with cold water (10 mL) and extracted with EtOAc (2×50 mL). The combined organic layers were washed with water (30 mL) and brine (30 mL), dried over Na2SO4, filtered, concentrated and purified by column chromatography (10-15% ethyl acetate in hexanes) to afford 5-(4-methoxyphenyl)-2,2-dimethyl-4-(4-(quinolin-2-ylmethoxy)phenyl) furan-3(2H)-one (10 mg) as a solid.

1. additionwas added under an inert atmosphere
2. stirringstirring
3. waitwas continued for an additional 16 h
4. customThe reaction mixture was quenched with cold water (10 mL)
5. extractionextracted with EtOAc (2×50 mL)
6. washThe combined organic layers were washed with water (30 mL) and brine (30 mL)
7. dry with materialdried over Na2SO4
8. filtrationfiltered
9. concentrationconcentrated
10. custompurified by column chromatography (10-15% ethyl acetate in hexanes)

ORD-Eintrag

ord-9fffdb0b8e83442bbee193ad4329ac0d

Quelldatensatz

uspto-grants-2015_01

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08933074B2