Water → Boc-Tyr(2-F)-N-Me-Val-N-Me-Tyr(3-tBu)-NH2

HRID 1988284ノート

反応式

HRID 1988284 の反応式
[NH:1]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[C@H:2]([C:12]([OH:14])=O)[CH2:3][C:4]1[C:5]([F:11])=[CH:6][C:7]([OH:10])=[CH:8][CH:9]=1.[NH:22]([CH3:47])[C@H:23]([C:27]([N:29]([CH3:46])[C@H:30]([C:43]([NH2:45])=[O:44])[CH2:31][C:32]1[CH:37]=[CH:36][C:35]([OH:38])=[C:34]([C:39]([CH3:42])([CH3:41])[CH3:40])[CH:33]=1)=[O:28])[CH:24]([CH3:26])[CH3:25].O>C1COCC1>[NH:1]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[C@H:2]([C:12]([N:22]([CH3:47])[C@H:23]([C:27]([N:29]([CH3:46])[C@H:30]([C:43]([NH2:45])=[O:44])[CH2:31][C:32]1[CH:37]=[CH:36][C:35]([OH:38])=[C:34]([C:39]([CH3:42])([CH3:40])[CH3:41])[CH:33]=1)=[O:28])[CH:24]([CH3:26])[CH3:25])=[O:14])[CH2:3][C:4]1[C:5]([F:11])=[CH:6][C:7]([OH:10])=[CH:8][CH:9]=1

参加物

5

反応物 3

HCID 962WaterHCID 59567940(S)-2-((tert-butoxycarbonyl)amino)-3-(2-fluoro-4-hydroxyphenyl)propanoic acidHCID 131722752N-Me-Val-N-Me-Tyr(3-tBu)-NH2

生成物 1

HCID 131727518Boc-Tyr(2-F)-N-Me-Val-N-Me-Tyr(3-tBu)-NH2収率 15.4%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of the above crude Boc-Tyr(2-F)-OH (0.82 g), N-Me-Val-N-Me-Tyr(3-tBu)-NH2 (0.77 g, 2.11 mmol) and CMPI (0.81 g, 3.17 mmol) in THF (5 ml), TEA (1.18 ml, 8.44 mmol) was added under cooling with ice and stirred at room temperature for 23 hours. The reaction mixture was mixed with water, and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and evaporated to remove the solvent under reduced pressure; the thus obtained residue was subjected to silica gel column chromatography (developing solvent: chloroform:methanol:concentrated aqueous ammonia=30:1:0.05), giving the titled compound (0.21 g, 15%).

後処理

  1. temperatureunder cooling with ice
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customevaporated
  6. customto remove the solvent under reduced pressure

出典と根拠

ORDレコード
ord-befd211c205144be8a7d5fb54e902849
出典データセット
uspto-grants-2009_06
特許番号
US07553969B1

反応ノート

読み込み中…