Hydrochloric Acid → N-hydroxy-2(R)-[[(R)-methylphenylphosphinyl]amino]-4-methylpentanamide

反応式

C[O:2][C:3](=O)[C@@H:4]([CH2:15][CH:16]([CH3:18])[CH3:17])[NH:5][P@@:6]([CH3:14])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)=[O:7].[NH2:20][O:21][K].Cl>>[OH:21][NH:20][C:3](=[O:2])[C@H:4]([NH:5][P@@:6]([CH3:14])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)=[O:7])[CH2:15][CH:16]([CH3:18])[CH3:17]

参加物

反応物 3

HCID 313Hydrochloric Acid

HCID 10636698n-((r)-Methylphenylphosphinyl)-d-leucine methyl ester

HCID 178514655HCID 178514655、化合物

生成物 1

HCID 10731747N-hydroxy-2(R)-[[(R)-methylphenylphosphinyl]amino]-4-methylpentanamide

実験手順

N-((R)-Methylphenylphosphinyl)-D-leucine methyl ester (60 mg, 0.21 mmol) is treated with a solution of NH2OK (0.57 mL, 1.76M in methanol) prepared as described in Fieser and Fieser, Vol. 1, p. 478. The reaction is stirred for 7 hours at which time TLC indicates completion. The reaction mixture is neutralized with 1M aqueous HCl and the volatiles are removed. The residue is purified by silica gel flash chromatography (95:5 ethyl acetate:ethanol) to give N-hydroxy-2(R)-[[(R)-methylphenylphosphinyl]amino]-4-methylpentanamide as a colorless solid: MS-IS m/z 285 [M+H]+.