Water → Z-Phe(4-F)-N-Me-Val-N-Me-Tyr(3-tBu)-NH2
反応式
[NH:1]([C:14]([O:16][CH2:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)=[O:15])[C@H:2]([C:11]([OH:13])=O)[CH2:3][C:4]1[CH:9]=[CH:8][C:7]([F:10])=[CH:6][CH:5]=1.[NH:24]([CH3:49])[C@H:25]([C:29]([N:31]([CH3:48])[C@H:32]([C:45]([NH2:47])=[O:46])[CH2:33][C:34]1[CH:39]=[CH:38][C:37]([OH:40])=[C:36]([C:41]([CH3:44])([CH3:43])[CH3:42])[CH:35]=1)=[O:30])[CH:26]([CH3:28])[CH3:27].O>C1COCC1>[NH:1]([C:14]([O:16][CH2:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)=[O:15])[C@H:2]([C:11]([N:24]([CH3:49])[C@H:25]([C:29]([N:31]([CH3:48])[C@H:32]([C:45]([NH2:47])=[O:46])[CH2:33][C:34]1[CH:39]=[CH:38][C:37]([OH:40])=[C:36]([C:41]([CH3:44])([CH3:42])[CH3:43])[CH:35]=1)=[O:30])[CH:26]([CH3:28])[CH3:27])=[O:13])[CH2:3][C:4]1[CH:5]=[CH:6][C:7]([F:10])=[CH:8][CH:9]=1参加物
5
実験手順
To a solution of Z-Phe(4-F)—OH (1.09 g, 3.44 mmol), N-Me-Val-N-Me-Tyr(3-tBu)-NH2 (1.04 g, 2.87 mmol) and CMPI (878 mg, 3.44 mmol) in THF (30 ml), TEA (0.96 ml, 6.88 mmol) was added under cooling with ice and stirred at room temperature overnight. 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: n-hexane:ethyl acetate=1:3) to give Z-Phe(4-F)-N-Me-Val-N-Me-Tyr(3-tBu)-NH2 (1.73 g, 91%).
後処理
- temperatureunder cooling with ice
- extractionextracted with ethyl acetate
- washThe organic layer was washed with saturated brine
- dry with materialdried over anhydrous magnesium sulfate
- customevaporated
- customto remove the solvent under reduced pressure
出典と根拠
- ORDレコード
- ord-c4f25e93c12f4065a50008f78c7ac915
- 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…