Diisopropylethylamine → Benzyl (2S)-3-(2-bromophenyl)-2-{[(2R)-2-bromopropanoyl]amino}-propanoate

反応式

[Br:1][C:2]1[CH:20]=[CH:19][CH:18]=[CH:17][C:3]=1[CH2:4][C@@H:5]([C:7]([O:9][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)=[O:8])[NH2:6].C(N(C(C)C)CC)(C)C.[Br:30][C@H:31]([CH3:35])[C:32](Cl)=[O:33]>ClCCl>[Br:1][C:2]1[CH:20]=[CH:19][CH:18]=[CH:17][C:3]=1[CH2:4][C@H:5]([NH:6][C:32](=[O:33])[C@H:31]([Br:30])[CH3:35])[C:7]([O:9][CH2:10][C:11]1[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=1)=[O:8]

参加物

実験手順

Introduce 25.7 g of benzyl (S)-2-bromophenylalaninate and 150 ml of dichloromethane into a reactor, then bring the temperature of the reaction mixture to 0° C. and add 20 ml of diisopropylethylamine followed by 13.2 g of (2R)-2-bromopropionyl chloride. Subsequently, bring the mixture to ambient temperature. After stirring for 1 hour at that temperature, wash the mixture with water and then with dilute acetic acid solution, and evaporate off the solvents to yield the title compound.