Triethylamine → (2S)-1-(t-Butoxycarbonyl)-2-[1-hydroxy-2-(4-methoxyphenylthio)ethyl]pyrrolidine

反応式

[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([SH:9])=[CH:5][CH:4]=1.C(N(CC)CC)C.[C:17]([O:21][C:22]([N:24]1[CH2:28][CH2:27][CH2:26][C@H:25]1[CH:29]1[O:31][CH2:30]1)=[O:23])([CH3:20])([CH3:19])[CH3:18]>CO>[C:17]([O:21][C:22]([N:24]1[CH2:28][CH2:27][CH2:26][C@H:25]1[CH:29]([OH:31])[CH2:30][S:9][C:6]1[CH:7]=[CH:8][C:3]([O:2][CH3:1])=[CH:4][CH:5]=1)=[O:23])([CH3:20])([CH3:19])[CH3:18]

参加物

実験手順

4-Methoxythiophenol (1.0 ml) and triethylamine (1.0 ml) were added to (2S)-1-(t-butoxycarbonyl)-2-(1,2-epoxyethyl)-pyrrolidine (1.57 g) as obtained in Example 1-A) in methanol (50 ml), and the mixture was stirred for 1.5 hours under reflux. The reaction mixture was concentrated and the residue was poured into ice-water, followed by extraction with ethyl acetate. The extract was washed with saturated brine, dried over magnesium sulfate and concentrated. The residue was recrystallized from a mixted solution of hexane-ethyl acetate to give 2.16 g of the title compound as colorless needles.