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Methyl iodide → (1-[4-(7-Methyl-4-oxo-2-phenyl-4,7-dihydro-pyrano[2,3-e]indazol-3-yl)-phenyl]-cyclobutyl)-carbamic acid tert-butyl ester

HRID 1037299
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HRID 1037299 반응식
[C:1]([O:5][C:6](=[O:38])[NH:7][C:8]1([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[C:19](=[O:37])[C:20]4[C:21]([O:29][C:30]=3[C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=3)=[C:22]3[C:26](=[CH:27][CH:28]=4)[NH:25][N:24]=[CH:23]3)=[CH:14][CH:13]=2)[CH2:11][CH2:10][CH2:9]1)([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].[CH3:41]I>CN(C=O)C>[C:1]([O:5][C:6](=[O:38])[NH:7][C:8]1([C:12]2[CH:13]=[CH:14][C:15]([C:18]3[C:19](=[O:37])[C:20]4[C:21]([O:29][C:30]=3[C:31]3[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=3)=[C:22]3[C:26](=[CH:27][CH:28]=4)[N:25]([CH3:41])[N:24]=[CH:23]3)=[CH:16][CH:17]=2)[CH2:11][CH2:10][CH2:9]1)([CH3:4])([CH3:2])[CH3:3]
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참가 물질

5

반응물 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 67067723{1-[4-(4-Oxo-2-phenyl-4,7-dihydro-pyrano[2,3-e]indazol-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester

생성물 1

HCID 67067793(1-[4-(7-Methyl-4-oxo-2-phenyl-4,7-dihydro-pyrano[2,3-e]indazol-3-yl)-phenyl]-cyclobutyl)-carbamic acid tert-butyl ester수율 60.5%

시약·촉매·용매 1

HCID 6228
Dimethylformamide
용매

실험 절차

To a solution of {1-[4-(4-oxo-2-phenyl-4,7-dihydro-pyrano[2,3-e]indazol-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester (65 mg, 0.13 mmol) in DMF (3 mL) at 0° C. under an atmosphere of N2 was added sodium hydride (60% in mineral oil, 6 mg, 0.15 mmol). After 5 min, methyl iodide (10 μL, 0.16 mmol) was added and the mixture stirred for a further 2 hours. The reaction was quenched with H2O, partitioned between EtOAc and H2O and the phases separated. The organic extracts were washed with brine, dried (Na2SO4), filtered, and concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, gradient 50 to 70% ethyl acetate in cyclohexane) to afford the title compound as an oil (41 mg, 60%). LCMS (Method B): RT=4.42 min, [M+H]+=522. Also obtained was {1-[4-(8-Methyl-4-oxo-2-phenyl-4,8-dihydro-pyrano[2,3-e]indazol-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester as a white solid (22 mg, 32%). LCMS (Method B): RT=4.26 min, [M+H]+=522.

후처리

  1. customThe reaction was quenched with H2O
  2. custompartitioned between EtOAc and H2O
  3. customthe phases separated
  4. washThe organic extracts were washed with brine
  5. dry with materialdried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-a95184d454fd49e986eedfc71d4d4f20
출처 데이터셋
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08546376B2

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