Lithium borohydride → 2-[4-Chloro-2-[(2,4-dichlorophenyl)amino]-7-(1-ethylpropyl)-1H-benzimidazol-1-yl]ethanol

To a solution of ethyl {4-chloro-2-[(2,4-dichlorophenyl)amino]-7-(1-ethylpropyl)-1H-benzimidazol-1-yl}acetate (99 mg, 0.211 mmol) in tetrahydrofuran (1.5 mL) was added lithium tetrahydroborate (14 mg, 0.634 mmol), and the mixture was stirred at 65° C. for 1.5 hr. After cooling, the reaction mixture was quenched with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The resulting solid was washed with n-hexane to give the title compound (86 mg, 0.202 mmol, 96%) as a colorless solid.

1. temperatureAfter cooling
2. customthe reaction mixture was quenched with water
3. extractionextracted with ethyl acetate
4. washThe organic layer was washed with brine
5. dry with materialdried over anhydrous sodium sulfate
6. concentrationconcentrated in vacuo
7. washThe resulting solid was washed with n-hexane

ORD-Eintrag

ord-886e8bc7ae314d769e2cb2b96becadc1

Quelldatensatz

uspto-grants-2014_07

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08785460B2