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Sodium Azide → 3-[2-(3-azidoanilino)-4-pyrimidinyl]-N-cyclopentyl-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridin-7-amine

HRID 8512
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HRID 8512 반응식
[CH:1]1([NH:6][C:7]2[N:12]3[N:13]=[C:14]([C:30]4[CH:35]=[CH:34][C:33]([O:36][CH3:37])=[CH:32][CH:31]=4)[C:15]([C:16]4[CH:21]=[CH:20][N:19]=[C:18]([NH:22][C:23]5[CH:24]=[C:25]([NH2:29])[CH:26]=[CH:27][CH:28]=5)[N:17]=4)=[C:11]3[CH:10]=[CH:9][CH:8]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.N([O-])=O.[Na+].[N-:42]=[N+:43]=[N-].[Na+].C(=O)(O)[O-].[Na+]>C(O)(=O)C.O.O.CCOCC>[N:29]([C:25]1[CH:24]=[C:23]([CH:28]=[CH:27][CH:26]=1)[NH:22][C:18]1[N:17]=[C:16]([C:15]2[C:14]([C:30]3[CH:31]=[CH:32][C:33]([O:36][CH3:37])=[CH:34][CH:35]=3)=[N:13][N:12]3[C:7]([NH:6][CH:1]4[CH2:5][CH2:4][CH2:3][CH2:2]4)=[CH:8][CH:9]=[CH:10][C:11]=23)[CH:21]=[CH:20][N:19]=1)=[N+:42]=[N-:43]
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참가 물질

8

반응물 4

HCID 33557Sodium Azide2회HCID 516892Sodium BicarbonateHCID 10141279N'-{[7-(cyclopentylamino)-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-pyrimidinyl}-1,3-benzenediamineHCID 23668193Sodium Nitrite2회

생성물 1

HCID 102795183-[2-(3-azidoanilino)-4-pyrimidinyl]-N-cyclopentyl-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridin-7-amine
수율 23%

시약·촉매·용매 3

HCID 962Water용매2회HCID 3283Diethyl Ether용매HCID 21899381Acetic acid--water (1/1)용매

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온도
0 °C

실험 절차

The following transformation was performed in the dark. To a cold (0° C.) solution of N′-{4-[7-(cyclopentylamino)-2-(4-methoxyphenyl)pyrazolo[1,5-α]pyridin-3-yl]-2-pyrimidinyl}-1,3-benzenediamine (16.5 mg, 0.03 mmol) in acetic acid/water (80/20, 1 mL) was added aqueous sodium nitrite (0.32 mL of a stock solution prepared by dissolving 200 mg of sodium nitrite in 25 mL water, 0.04 mmol). The resultant dark solution was stirred at 0° C. for 15 minutes. Aqueous sodium azide (0.11 mL of a stock solution prepared by dissolving 200 mg of sodium azide in 10 mL of water, 0.04 mmol) was added and the resultant solution was stirred for 1.5 hours over which time it was allowed to warm to room temperature. Ether was added and the solution made basic by dropwise addition of saturated aqueous sodium bicarbonate. The organic layer was washed with brine. The aqueous layer was extracted with ethyl acetate and the combined organics were dried over magnesium sulfate. Filtration and concentration gave a solid residue which was purified by flash chromatography (4:1 to 2:1 hexanes-ethyl acetate) to provide 3-[2-(3-azidoanilino)-4-pyrimidinyl]-N-cyclopentyl-2-(4-methoxyphenyl)pyrazolo[1,5-α]pyridin-7-amine (4 mg, 23%) as a tinted solid. 1H NMR (CDCl3): δ 8.12 (d, 1 H), 7.71 (d, 1 H), 7.60–7.56 (m, 3 H), 7.33–7.25 (m, 3 H), 6.98 (d, 2 H), 6.70 (d, 1 H), 6.54 (d, 1 H), 6.05–6.04 (m, 2 H), 4.00 (m, 1 H), 3.87 (s, 3 H), 2.13 (m, 2 H), 1.85–1.58 (m, 6 H); MS m/z 518 (M+1).

후처리

  1. additionwas added
  2. temperatureto warm to room temperature
  3. washThe organic layer was washed with brine
  4. extractionThe aqueous layer was extracted with ethyl acetate
  5. dry with materialthe combined organics were dried over magnesium sulfate
  6. filtrationFiltration and concentration
  7. customgave a solid residue which
  8. customwas purified by flash chromatography (4:1 to 2:1 hexanes-ethyl acetate)

출처 및 근거

ORD 기록
ord-70663752c89d42869644e5dfac14c2ed
출처 데이터셋
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07087618B2

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