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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
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HRID 2079275 반응식
[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]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 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

생성물 1

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

시약·촉매·용매 2

HCID 962Water용매HCID 6344Dichloromethane용매2회

실험 절차

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)).

후처리

  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

출처 및 근거

ORD 기록
ord-46f42896e15c4c71bbde1df38db230e8
출처 데이터셋
uspto-grants-2011_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07928107B2

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