Diisopropylcarbodiimide → 2-[N-(benzyloxycarbonyl)-N-methylamino]-N-[2-(3-tert-butyl-4-hydroxyphenyl)-1-methylethyl]-3-methylbutanamide

HRID 1383736ノート

反応式

HRID 1383736 の反応式
[C:1]([C:5]1[CH:6]=[C:7]([CH2:12][CH:13]([NH2:15])[CH3:14])[CH:8]=[CH:9][C:10]=1[OH:11])([CH3:4])([CH3:3])[CH3:2].[C:16]([N:26]([CH3:34])[C@H:27]([C:31](O)=[O:32])[CH:28]([CH3:30])[CH3:29])([O:18][CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)=[O:17].C1C=CC2N(O)N=NC=2C=1.CC(C)N=C=NC(C)C>CN(C=O)C.C(OCC)(=O)C>[CH2:19]([O:18][C:16]([N:26]([CH:27]([CH:28]([CH3:30])[CH3:29])[C:31]([NH:15][CH:13]([CH3:14])[CH2:12][C:7]1[CH:8]=[CH:9][C:10]([OH:11])=[C:5]([C:1]([CH3:4])([CH3:2])[CH3:3])[CH:6]=1)=[O:32])[CH3:34])=[O:17])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1

参加物

7

反応物 4

HCID 12734DiisopropylcarbodiimideHCID 757711-HydroxybenzotriazoleHCID 7016371N-Methyl-N-[(phenylmethoxy)carbonyl]-L-valineHCID 211874322-(3-Tert-butyl-4-hydroxyphenyl)-1-methylethylamine

生成物 1

HCID 211874312-[N-(benzyloxycarbonyl)-N-methylamino]-N-[2-(3-tert-butyl-4-hydroxyphenyl)-1-methylethyl]-3-methylbutanamide

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 0.31 g (1.50 mmol) of 2-(3-tert-butyl-4-hydroxyphenyl)-1-methylethylamine, 0.40 g (1.50 mmol) of Z-N-Me-Val-OH and 0.30 g (2.25 mmol) of HOBT in DMF (5 ml), 0.35 ml (2.25 mmol) of DIC was added under cooling with ice. After being stirred at room temperature for 2 hours, the reaction mixture was diluted with ethyl acetate and washed successively with saturated aqueous NaHCO3, water and saturated brine. The organic layer was dried with anhydrous magnesium sulfate and concentrated under reduced pressure; the resulting residue was subjected to silica gel column chromatography (eluting solvent; chloroform:methanol=125:1) to give 2-[N-(benzyloxycarbonyl)-N-methylamino]-N-[2-(3-tert-butyl-4-hydroxyphenyl)-1-methylethyl]-3-methylbutanamide in the amount of 0.55 g (81%).

後処理

  1. temperatureunder cooling with ice
  2. washwashed successively with saturated aqueous NaHCO3, water and saturated brine
  3. dry with materialThe organic layer was dried with anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. washthe resulting residue was subjected to silica gel column chromatography (eluting solvent; chloroform:methanol=125:1)

出典と根拠

ORDレコード
ord-b8c06b385d1d4476a397907547536259
出典データセット
uspto-grants-2001_07
特許番号
US06255285B1

反応ノート

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