Methyl 2-chlorobenzoate → (+)-trans-2-(2-Chloro-phenyl)-8-(2-hydroxymethyl-1-methyl-pyrrolidin-3-yl)-5,7-dimethoxy-chromen-4-one

Participants

Reaction Steps

Compound(5) was converted into (−)-trans-1-[2-Hydroxy-3-(2-hydroxymethyl-1-methyl-pyrrolidin-3-yl)-4,6-dimethoxyphenyl]-1-ethanone(compound(10) using the procedures described in examples 6 & 7. Compound(10) (0.75 g, 2.4 mmol), was reacted with methyl 2-chlorobenzoate (1.36 g, 7.9 mmol) in dry DMF (15 mL) in the presence of NaH (50%, 0.582 g, 12.9 mmol), using the procedure described in example 8 to get the title compound(11).

Provenance & Evidence