Ethylamine → HCID 68616941, compound

Participants

Reaction Steps

The corresponding enantiomer N-((3S,4R)-4-Ethylaminomethyl-pyrrolidin-3-ylmethyl)-N-isopropyl-4-methoxy-3-(3-methoxy-propoxy)-benzamide is obtained as follows: A solution of (3S,4R)-3-formyl-4-({isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (1.27 g, 2.58 mmol) and gaseous ethylamine (0.704 g, 15.5 mmol; Fluka 02940) in 1,2-dichloroethane (10 mL) is stirred at room temperature for 30 min, then sodium triacetoxyborohydride (1.37 g, 6.45 mmol) is added in one portion and the mixture is stirred overnight. The organic phase is washed with saturated aqueous NaHCO3 solution, the water layers are re-extracted with CH2Cl2, and the combined organics are dried (Na2SO4) and evaporated to dryness to give the title compound. MS: 522.2 [M+H]+.

Provenance & Evidence