Water → N-cyclopentyl-3-[2-(cyclopentylamino)-4-pyrimidinyl]-2-(4-methoxyphenyl)-pyrazolo[1,5-alpha]pyridin-5-amine

HRID 724004

반응식

HRID 724004 반응식
[CH:1]1([NH:6][C:7]2[CH:12]=[CH:11][N:10]3[N:13]=[C:14]([C:23]4[CH:28]=[CH:27][C:26]([O:29][CH3:30])=[CH:25][CH:24]=4)[C:15]([C:16](=O)[CH:17]=[CH:18]N(C)C)=[C:9]3[CH:8]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.Cl.[CH:32]1([NH:37][C:38]([NH2:40])=[NH:39])[CH2:36][CH2:35][CH2:34][CH2:33]1.C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[CH:1]1([NH:6][C:7]2[CH:12]=[CH:11][N:10]3[N:13]=[C:14]([C:23]4[CH:24]=[CH:25][C:26]([O:29][CH3:30])=[CH:27][CH:28]=4)[C:15]([C:16]4[CH:17]=[CH:18][N:40]=[C:38]([NH:37][CH:32]5[CH2:36][CH2:35][CH2:34][CH2:33]5)[N:39]=4)=[C:9]3[CH:8]=2)[CH2:2][CH2:3][CH2:4][CH2:5]1

참가 물질

6

반응물 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 693555081-[5-(Cyclopentylamino)-2-(4-methoxyphenyl)pyrazolo[1,5-alpha]pyridin-3-yl]-3-(dimethylamino)-2-propen-1-oneHCID 178479367HCID 178479367, 화합물

생성물 1

HCID 9847463N-cyclopentyl-3-[2-(cyclopentylamino)-4-pyrimidinyl]-2-(4-methoxyphenyl)-pyrazolo[1,5-alpha]pyridin-5-amine수율 87%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of 1-[5-(cyclopentylamino)-2-(4-methoxyphenyl)pyrazolo[1,5-α]pyridin-3-yl]-3-(dimethylamino)-2-propen-1-one (1.05 g, 2.60 mmol) in N,N-dimethylformamide (20 mL) was added N-cyclopentyl guanidine hydrochloride (1.27 g, 7.79 mmol; Prepared by modification of a procedure from Bannard, R. A. B. et al., Can. J. Chem. 1958, 36,1541–1549), followed by potassium carbonate (0.54 g, 3.89 mmol). The resulting solution was heated at reflux for 15 hours. Upon cooling to room temperature, water was added. The mixture was extracted with ethyl acetate. The ethyl acetate phase was washed with brine, dried (magnesium sulfate), filtered and concentrated in vacuo. The resulting residue was purified by flash chromatography (4:6 ethyl acetate:hexane) to give N-cyclopentyl-3-[2-(cyclopentylamino)-4-pyrimidinyl]-2-(4-methoxyphenyl)-pyrazolo[1,5-α]pyridin-5-amine (1.06 g, 87%) as a yellow solid. 1H NMR (CDCl3): δ 8.15 (d, 1H), 7.91 (d, 1H), 7.51 (d, 2H), 7.41 (d, 1H), 6.94 (d, 2H), 6.26 (d, 1H), 6.22 (dd, 1H). 5.11 (d, 1H), 4.42 (m, 1H), 4.09 (d, 1H), 3.88 (m, 1H), 3.85 (s, 3H), 2.10–2.01 (m, 4H), 1.76–1.52 (m, 12H); MS m/z 469 (M+1).

후처리

  1. customPrepared by modification of a procedure from Bannard, R
  2. temperatureThe resulting solution was heated
  3. temperatureat reflux for 15 hours
  4. extractionThe mixture was extracted with ethyl acetate
  5. washThe ethyl acetate phase was washed with brine
  6. dry with materialdried (magnesium sulfate)
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customThe resulting residue was purified by flash chromatography (4:6 ethyl acetate:hexane)

출처 및 근거

ORD 기록
ord-b9eb75f0351b433ebe3f4384b10a15d1
출처 데이터셋
uspto-grants-2006_11
특허 번호
US07141569B2

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