Triethylamine → HCID 68821879, compound

Participants

Reaction Steps

8,9-Dimethoxy-6-phenyl-1,3,4,6,11,11a-hexahydro-2H-pyrazino[1,2-b]isoquinoline (the compound obtained in Example 1-(6)) (1.6 g) is dissolved in methylene chloride (10 ml), and thereto are added triethylamine (0.8 ml) and benzyloxyacetyl chloride (0.8 ml) under ice-cooling, and the mixture is stirred for 30 minutes. The reaction solution is washed with a saturated aqueous sodium hydrogen carbonate solution, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by column chromatography on silica gel (eluent; chloroform:ethyl acetate=9:1) to give 8,9-dimethoxy-2-benzyloxyacetyl-6-phenyl-1,3,4,6,11,11a-hexahydro-2H-pyrazino[1,2-b]isoquinoline (1.1 g).

Provenance & Evidence