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Diethyl Ether → 4-[7-chloro-2-(3-methylphenyl)pyrazolo[1,5-a]pyridin-3-yl]-N-cyclopentyl-2-pyrimidinamine

HRID 861144
ノート
印刷プレビュー

反応式

HRID 861144 の反応式
[Cl:1][C:2]1[N:7]2[N:8]=[C:9]([C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([CH3:21])[CH:16]=3)[C:10]([C:11](=O)[C:12]#[CH:13])=[C:6]2[CH:5]=[CH:4][CH:3]=1.Cl.[CH:23]1([NH:28][C:29]([NH2:31])=[NH:30])[CH2:27][CH2:26][CH2:25][CH2:24]1.C(=O)([O-])[O-].[K+].[K+].CCOCC>CN(C)C=O.O>[Cl:1][C:2]1[N:7]2[N:8]=[C:9]([C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([CH3:21])[CH:16]=3)[C:10]([C:11]3[CH:12]=[CH:13][N:31]=[C:29]([NH:28][CH:23]4[CH2:27][CH2:26][CH2:25][CH2:24]4)[N:30]=3)=[C:6]2[CH:5]=[CH:4][CH:3]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 3283Diethyl EtherHCID 11430Potassium CarbonateHCID 574447371-[7-Chloro-2-(3-methylphenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-oneHCID 178479367HCID 178479367、化合物

生成物 1

HCID 865967674-[7-chloro-2-(3-methylphenyl)pyrazolo[1,5-a]pyridin-3-yl]-N-cyclopentyl-2-pyrimidinamine収率 45.5%

試薬・触媒・溶媒 2

HCID 962
Water
溶媒
HCID 6228Dimethylformamide溶媒

実験手順

To a solution of 1-[7-chloro-2-(3-methylphenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-one (4.04 g, 13.0 mmol) in N,N-dimethylformamide (100 mL) was added cyclopentyl guanidine hydrochloride (6.36 g, 39 mmol), followed by solid potassium carbonate (5.39 g, 39 mmol). The resultant solution was heated to reflux for 6 hours. Upon cooling to room temperature, ether was added followed by water. The organics were washed with brine, and the aqueous extracted with ethyl acetate. The combined organics were dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by silica gel flash chromatography (3:10 ethyl acetate:hexanes) to give 4-[7-chloro-2-(3-methylphenyl)pyrazolo[1,5-a]pyridin-3-yl]-N-cyclopentyl-2-pyrimidinamine (2.39 g, 43%) as a yellow foam. 1H NMR (CDCl3) δ 8.47 (d, 1H), 7.99 (d, 1H), 7.48 (s, 1H), 7.39 (d, 1H), 7.33–7.24 (m, 3H), 7.05 (d, 1H), 6.33 (d, 1H), 5.38 (broad s, 1H), 4.36 (m, 1H), 2.40 (s, 3H), 2.10 (m, 2H), 1.78 (m, 2H), 1.67 (m, 2H), 1.58 (m, 2H); MS m/z 404 (M+1).

後処理

  1. temperatureto reflux for 6 hours
  2. washThe organics were washed with brine
  3. extractionthe aqueous extracted with ethyl acetate
  4. dry with materialThe combined organics were dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by silica gel flash chromatography (3:10 ethyl acetate:hexanes)

出典と根拠

ORDレコード
ord-485d09d83293425fade5f4235992ea36
出典データセット
uspto-grants-2006_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07153855B2

反応ノート

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