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Triethylamine → 4-{4-[2-(2-Hydroxy-phenyl)-7-methyl-quinazolin-4-yl]-piperazin-1-yl}-4-oxo-but-2-enoic acid ethyl ester

HRID 2079275
ノート
印刷プレビュー

反応式

HRID 2079275 の反応式
[CH3:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6]([N:19]3[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]3)=[N:7][C:8]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[OH:18])=[N:9]2)=[CH:4][CH:3]=1.[CH2:25]([O:27][C:28](=[O:34])[CH:29]=[CH:30][C:31](O)=[O:32])[CH3:26].C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1>C(Cl)Cl.O>[CH2:25]([O:27][C:28](=[O:34])[CH:29]=[CH:30][C:31]([N:22]1[CH2:23][CH2:24][N:19]([C:6]2[C:5]3[C:10](=[CH:11][C:2]([CH3:1])=[CH:3][CH:4]=3)[N:9]=[C:8]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[OH:18])[N:7]=2)[CH2:20][CH2:21]1)=[O:32])[CH3:26]
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 8471TriethylamineHCID 413314-Ethoxy-4-oxobut-2-enoic acidHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 1361346166-[7-methyl-4-(1-piperazinyl)-1H-quinazolin-2-ylidene]-1-cyclohexa-2,4-dienone

生成物 1

HCID 1364122494-{4-[2-(2-Hydroxy-phenyl)-7-methyl-quinazolin-4-yl]-piperazin-1-yl}-4-oxo-but-2-enoic acid ethyl ester
収率 91%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6344Dichloromethane溶媒2 回

実験手順

To 2-(7-methyl-4-piperazin-1-yl-quinazolin-2-yl)-phenol (787 mg, 2.46 mmol) in 8 mL of CH2Cl2 at room temperature was added sequentially but-2-enedioic acid monoethyl ester (531 mg, 3.69 mmol), triethylamine (686 μL, 4.92 mmol), BOP (1.63 g, 3.69 mmol). The reaction mixture was stirred for 20 min and diluted with water and CH2Cl2. The organic layer was separated and dried over Na2SO4, and the solvent was removed under reduced pressure to give an oil. The residue was subjected to purification by normal phase LC using 10-100% EtOAc-hexanes to give 4-{4-[2-(2-Hydroxy-phenyl)-7-methyl-quinazolin-4-yl]-piperazin-1-yl}-4-oxo-but-2-enoic acid ethyl ester (1.00 g, 91% yield). LC/MS: m/z 447.3 (M+H)+ at 2.93 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

後処理

  1. customThe organic layer was separated
  2. dry with materialdried over Na2SO4
  3. customthe solvent was removed under reduced pressure
  4. customto give an oil
  5. customThe residue was subjected to purification by normal phase LC

出典と根拠

ORDレコード
ord-46f42896e15c4c71bbde1df38db230e8
出典データセット
uspto-grants-2011_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07928107B2

反応ノート

読み込み中…

このページの内容参加物実験手順後処理出典と根拠反応ノート