4-Methylmorpholine → [3-(3,4-Dichlorophenyl)-3-(2-hydroxyethyl)pyrrolidin-1-yl](2-methoxyphenyl)methanone

Temperatur

0 °C

3-(3,4-Dichloro-phenyl)-3-(2-hydroxy-ethyl)-pyrrolidine (200 mg, 0.76 mmol) was dissolved in dichloromethane (5 mL) at -78° C. and treated with 4-methylmorpholine (0.17 mL, 1.55 mmol, 2 eq.) and 2-methoxy-benzoyl chloride (0.11 mL, 0.74 mmol). The solution was allowed to warm to 0° C. and stir for 1 hour. The solution was washed with 1N HCl and 5% sodium bicarbonate and the organic phase was dried over magnesium sulfate, filtered, and concentrated in vacuo. The residue was chromatographed on silica gel (30 g) with a gradient of 50% ethyl acetate in hexane to 3% methanol in dichloromethane to give 268 mg (90%) of the title compound.

1. washThe solution was washed with 1N HCl and 5% sodium bicarbonate
2. dry with materialthe organic phase was dried over magnesium sulfate
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customThe residue was chromatographed on silica gel (30 g) with a gradient of 50% ethyl acetate in hexane to 3% methanol in dichloromethane

ORD-Eintrag

ord-5da0295081824c2f8cf1d6e78009026d

Quelldatensatz

uspto-grants-1997_06

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US05635510