Pyridine → N-{[(2S)-4-(3,4-dichlorobenzyl)morpholin-2-yl]methyl}pentanamide

A solution of Intermediate 9 (0.028 g) in dichloromethane (2 ml) containing a suspension of polyvinyl pyridine (0.1 g) was treated with valeryl chloride (0.018 ml), and the mixture was shaken at 20° C. for 16 h. Tris (2-aminoethyl)amine polystyrene scavenger resin (Argonaut Technologies, 4.46 mmol/g; 0.067 g) was added, and the mixture was shaken at 20° C. for 2 h. The mixture was filtered and the filtrate applied directly to a silica gel cartridge (1 g Varian Bond Elut). Elution with chloroform, ether, and ethyl acetate gave the title compound (0.0225 g).

1. stirringthe mixture was shaken at 20° C. for 2 h
2. filtrationThe mixture was filtered
3. washElution with chloroform, ether, and ethyl acetate

ORD record

ord-884f12e42e3a4aef81dc092e55a8b69e

Source dataset

uspto-grants-2006_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07101882B2