Sodium Methoxide → methyl 3-(R)-n-butyl-3-[2-(S)-tert-butoxycarbonylpyrrolidin-1-yl-carbonyl)-2-(S)-hydroxypropionate

Participants

Reaction Steps

To 1-(2,2-dimethyl-4-oxo-1,3-dioxolan-5-yl)-1-(2-(S)-tert-butoxycarbonylpyrrolidin-1-ylcarbonyl)pentane G-2 (5 mmol, 50%) (5 mmol) in methanol (20 mL) was added sodium methoxide (catalytic; pH adjusted to 10) and the solution stirred for 1 hour. Amberlite IR-120 resin (H+ form) was added, then the solution was filtered and concentrated to afford methyl 3-(R)-n-butyl-3-[2-(S)-tert-butoxycarbonylpyrrolidin-1-yl-carbonyl)-2-(S)-hydroxypropionate G-3 (quant.).

Provenance & Evidence