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Hydrazine → N-cyclopentyl-4-[2-(4-fluorophenyl)-7-hydrazinopyrazolo[1,5-a]pyridin-3-yl]-6-methyl-2-pyrimidinamine

HRID 1373795
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HRID 1373795 반응식
Cl[C:2]1[N:7]2[N:8]=[C:9]([C:24]3[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=3)[C:10]([C:11]3[CH:16]=[C:15]([CH3:17])[N:14]=[C:13]([NH:18][CH:19]4[CH2:23][CH2:22][CH2:21][CH2:20]4)[N:12]=3)=[C:6]2[CH:5]=[CH:4][CH:3]=1.[NH2:31][NH2:32]>C(O)C.C(OCC)(=O)C>[CH:19]1([NH:18][C:13]2[N:12]=[C:11]([C:10]3[C:9]([C:24]4[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=4)=[N:8][N:7]4[C:2]([NH:31][NH2:32])=[CH:3][CH:4]=[CH:5][C:6]=34)[CH:16]=[C:15]([CH3:17])[N:14]=2)[CH2:23][CH2:22][CH2:21][CH2:20]1
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5

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HCID 9321HydrazineHCID 102957644-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-N-cyclopentyl-6-methyl-2-pyrimidinamine

생성물 1

HCID 10202082N-cyclopentyl-4-[2-(4-fluorophenyl)-7-hydrazinopyrazolo[1,5-a]pyridin-3-yl]-6-methyl-2-pyrimidinamine수율 46%

시약·촉매·용매 2

HCID 702Ethanol용매HCID 8857Ethyl Acetate
용매

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온도
90 °C

실험 절차

To a solution of 4-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-α]pyridin-3-yl]-N-cyclopentyl-6-methyl-2-pyrimidinamine (100 mg, 0.237 mmol) in ethanol (1 mL) was added hydrazine (500 uL, 15.9 mmol). The reaction mixture was heated in a sealed tube at 90° C. for 72 hours. The mixture was cooled and diluted with ethyl acetate and washed with saturated aqueous sodium bicarbonate, water and brine. The combined organics were dried over magnesium sulfate. Filtration and concentration followed by flash chromatography (38:2 dichloromethane-methanol) provided N-cyclopentyl-4-[2-(4-fluorophenyl)-7-hydrazinopyrazolo[1,5-α]pyridin-3-yl]-6-methyl-2-pyrimidinamine (45 mg, 46%) as a yellow solid. Rf 0.43 (38:2 CH2Cl2-MeOH); 1H NMR (CDCl3) δ 7.78 (1H), 7.62 (2H), 7.35 (1H), 7.20 (1H), 7.12 (2H), 6.45 (1H), 6.24 (1H), 5.03 (1H), 4.35 (1H), 3.85 (2H), 2.18 (3H), 2.02 (2H), 1.62 (6H); MS m/z 418 (M+1).

후처리

  1. temperatureThe mixture was cooled
  2. washwashed with saturated aqueous sodium bicarbonate, water and brine
  3. dry with materialThe combined organics were dried over magnesium sulfate
  4. filtrationFiltration and concentration

출처 및 근거

ORD 기록
ord-3973ba1c19b24b729ead74990c190b1c
출처 데이터셋
uspto-grants-2007_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07163940B2

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