Diisopropylethylamine → N-methyl-N-((3E)-4-(N-methyl-N-((1R)-1-(N-methyl-N-phenethylcarbamoyl)-2-(2-naphthyl)ethyl)carbamoyl)-1,1-dimethylbut-3-enyl)carbamic acid tert-butyl ester

HRID 366125ノート

反応式

HRID 366125 の反応式
[C:1]([O:5][C:6]([N:8]([C:10]([CH3:18])([CH3:17])[CH2:11]/[CH:12]=[CH:13]/[C:14]([OH:16])=O)[CH3:9])=[O:7])([CH3:4])([CH3:3])[CH3:2].ON1C2N=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.[CH3:41][N:42]([CH2:59][CH2:60][C:61]1[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=1)[C:43](=[O:58])[C@H:44]([NH:56][CH3:57])[CH2:45][C:46]1[CH:55]=[CH:54][C:53]2[C:48](=[CH:49][CH:50]=[CH:51][CH:52]=2)[CH:47]=1.C(N(C(C)C)C(C)C)C>CN(C)C=O.ClCCl.C(OCC)(=O)C>[C:1]([O:5][C:6](=[O:7])[N:8]([CH3:9])[C:10]([CH3:18])([CH3:17])[CH2:11]/[CH:12]=[CH:13]/[C:14](=[O:16])[N:56]([CH3:57])[C@@H:44]([C:43](=[O:58])[N:42]([CH3:41])[CH2:59][CH2:60][C:61]1[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=1)[CH2:45][C:46]1[CH:55]=[CH:54][C:53]2[C:48](=[CH:49][CH:50]=[CH:51][CH:52]=2)[CH:47]=1)([CH3:2])([CH3:3])[CH3:4]

参加物

9

反応物 5

HCID 81531DiisopropylethylamineHCID 181649HOAtHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 10593711(2R)-2-(methylamino)-3-(2-naphthyl)propionic acid N-methyl-N-phenethylamideHCID 10848750(2E)-5-(N-(tert-butoxycarbonyl)-N-methylamino)-5-methylhex-2-enoic acid

生成物 1

HCID 59965089N-methyl-N-((3E)-4-(N-methyl-N-((1R)-1-(N-methyl-N-phenethylcarbamoyl)-2-(2-naphthyl)ethyl)carbamoyl)-1,1-dimethylbut-3-enyl)carbamic acid tert-butyl ester収率 72.6%

試薬・触媒・溶媒 3

HCID 6228Dimethylformamide溶媒HCID 6344Dichloromethane溶媒2 回HCID 8857Ethyl Acetate溶媒

反応条件

温度
0 °C

実験手順

(2E)-5-(N-(tert-Butoxycarbonyl)-N-methylamino)-5-methylhex-2-enoic acid (122 mg, 0.48 mmol) was dissolved in N,N-dimethylformamide (2 ml) and dichloromethane (2 ml). 1-Hydroxy-7-azabenzotriazole (65 mg, 0.48 mmol) was added. The solution was cooled to 0° C. N-(3-Dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (92 mg, 0.48 mmol) was added. The reaction mixture was stirred for 15 min at 0° C. A solution of (2R)-2-(methylamino)-3-(2-naphthyl)propionic acid N-methyl-N-phenethylamide (165 mg, 0.48 mmol) in dichloromethane (2 ml) and ethyldiisopropylamine (0.083 ml, 0.48 mmol) were added successively. The solution was stirred for 16 h, while it was warming up to room temperature. It was diluted with ethyl acetate (50 ml) and washed with 10% aqueous sodium hydrogen sulfate solution (50 ml). The aqueous phase was extracted with ethyl acetate (2×10 ml). The combined organic layers were washed with saturated aqueous sodium hydrogen carbonate solution (50 ml) and dried over magnesium sulfate. The solvent was removed in vacuo. The crude product was purified by flash chromatography on silica (80 g), using ethyl acetate/heptane 1:1 as eluent to give 204 mg of N-methyl-N-((3E)-4-(N-methyl-N-((1R)-1-(N-methyl-N-phenethylcarbamoyl)-2-(2-naphthyl)ethyl)carbamoyl)-1,1-dimethylbut-3-enyl)carbamic acid tert-butyl ester.

後処理

  1. stirringThe solution was stirred for 16 h, while it
  2. temperaturewas warming up to room temperature
  3. washwashed with 10% aqueous sodium hydrogen sulfate solution (50 ml)
  4. extractionThe aqueous phase was extracted with ethyl acetate (2×10 ml)
  5. washThe combined organic layers were washed with saturated aqueous sodium hydrogen carbonate solution (50 ml)
  6. dry with materialdried over magnesium sulfate
  7. customThe solvent was removed in vacuo
  8. customThe crude product was purified by flash chromatography on silica (80 g)

出典と根拠

ORDレコード
ord-8f330155f62e422087b2c3cf1ea94ff5
出典データセット
uspto-grants-2000_10
特許番号
US06127354

反応ノート

読み込み中…