Methylamine → 3-Benzyloxycarbonylamino-2(R,S)-methylpropionic acid N-methylamide

HRID 725653ノート

反応式

HRID 725653 の反応式
C[O:2][C:3](=O)[CH:4]([CH3:17])[CH2:5][NH:6][C:7]([O:9][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)=[O:8].[CH3:19][NH2:20]>>[CH3:19][NH:20][C:3](=[O:2])[CH:4]([CH3:17])[CH2:5][NH:6][C:7]([O:9][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)=[O:8]

参加物

3

反応物 2

HCID 6329MethylamineHCID 223644703-Benzyloxycarbonylamino-2(r,s)-methylpropionic acid methyl ester

生成物 1

HCID 223644733-Benzyloxycarbonylamino-2(R,S)-methylpropionic acid N-methylamide

実験手順

2.52 g of 3-benzyloxycarbonylamino-2(R,S)-methylpropionic acid methyl ester and 50 ml of 33% methylamine (in ethanol) are stirred at room temperature for 48 hours. The reaction mixture is concentrated by evaporation and the title compound is obtained from the residue by crystallisation from ethyl acetate: Rf (dichloromethane/methanol=95:5)=0.42; m.p. 128°-129° C.

後処理

  1. concentrationThe reaction mixture is concentrated by evaporation

出典と根拠

ORDレコード
ord-596d641fa9194569bb43dd2094a3f586
出典データセット
uspto-grants-1998_01
特許番号
US05705658

反応ノート

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