Benzylethanolamine → HCID 86648989, compound

Sodium triacetoxyborohydride (1.56 g) was added to a solution of 3-chloro-5-(2-methylpiperidin-1-yl)pyrazine-2-carbaldehyde (1.18 g), N-benzylethanolamine (0.83 g) and acetic acid (0.84 mL) in acetonitrile (8 mL), and the mixture was stirred at room temperature for 21 hr. The reaction mixture was basified with saturated aqueous sodium hydrogen carbonate solution, and extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate. The combined organic layer was washed with water and saturated brine, dried over magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography (solvent gradient: 10→50% ethyl acetate/hexane) to give the title compound (1.63 g, 89%) as a pale-yellow oil.

1. extractionextracted with ethyl acetate
2. extractionThe aqueous layer was extracted again with ethyl acetate
3. washThe combined organic layer was washed with water and saturated brine
4. dry with materialdried over magnesium sulfate
5. concentrationconcentrated
6. customThe residue was purified by silica gel column chromatography (solvent gradient: 10→50% ethyl acetate/hexane)

ORD record

ord-c15d2ee56c944945b9b1f3307859e70b

Source dataset

uspto-grants-2015_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09115139B2