Cyclopentylamine → N-cyclopentyl-2-(4-fluorophenyl)-3-[2-(1-pyrrolid inyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-alpha]pyridin-7-amine

HRID 1796533노트

반응식

HRID 1796533 반응식
Cl[C:2]1[N:7]2[N:8]=[C:9]([C:22]3[CH:27]=[CH:26][C:25]([F:28])=[CH:24][CH:23]=3)[C:10]([C:11]3[CH:16]=[CH:15][N:14]=[C:13]([N:17]4[CH2:21][CH2:20][CH2:19][CH2:18]4)[N:12]=3)=[C:6]2[CH:5]=[CH:4][C:3]=1[C:29]([F:32])([F:31])[F:30].C1(P(C2C=CC=CC=2)C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+].[CH:85]1([NH2:90])[CH2:89][CH2:88][CH2:87][CH2:86]1>C1(C)C=CC=CC=1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.CCOCC>[CH:85]1([NH:90][C:2]2[N:7]3[N:8]=[C:9]([C:22]4[CH:27]=[CH:26][C:25]([F:28])=[CH:24][CH:23]=4)[C:10]([C:11]4[CH:16]=[CH:15][N:14]=[C:13]([N:17]5[CH2:21][CH2:20][CH2:19][CH2:18]5)[N:12]=4)=[C:6]3[CH:5]=[CH:4][C:3]=2[C:29]([F:32])([F:31])[F:30])[CH2:89][CH2:88][CH2:87][CH2:86]1

참가 물질

8

반응물 4

HCID 2906CyclopentylamineHCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 221809127-Chloro-2-(4-fluorophenyl)-3-[2-(1-pyrrolidinyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-a]pyridine

생성물 1

HCID 10142258N-cyclopentyl-2-(4-fluorophenyl)-3-[2-(1-pyrrolid inyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-alpha]pyridin-7-amine수율 63%

시약·촉매·용매 3

HCID 167845palladium(II) acetate촉매HCID 1140Toluene용매HCID 3283Diethyl Ether용매

실험 절차

To a solution of 7-chloro-2-(4-fluorophenyl)-3-[2-(1-pyrrolidinyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-a]pyridine (54 mg, 0.12 mmol) in toluene (3 mL) was added successively racemic-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (9.2 mg, 0.013 mmol), cesium carbonate (57 mg, 0.17 mmol), cyclopentylamine (0.5 mL, 5.0 mmol), and palladium (II) acetate (2 mg, 0.009 mmol). The resultant mixture was heated at 85° C. for 6 hours at which time the reaction was judged complete by thin layer chromatography. The solution was cooled to room temperature and ether was added. The organic layer was washed with water and brine. The aqueous layer was extracted with ether and the combined organics dried over magnesium sulfate. Filtration and concentration followed by flash chromatography (12:1 to 8:1 hexanes-ethyl acetate) provided N-cyclopentyl-2-(4-fluorophenyl)-3-[2-(1-pyrrolidinyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-a]pyridin-7-amine (37 mg, 63%) as an oil. 1H NMR (CDCl3): δ 8.16 (d, 1 H), 7.84 (d, 1 H), 7.68 (dd, 2 H), 7.49 (d, 1 H), 7.18 (t, 2 H), 6.55 (d, 1 H), 6.29 (d, 1 H), 4.57 (m, 1 H), 3.68 (m, 4 H), 2.13–2.05 (m, 6 H), 1.84–1.65 (m, 6 H); 19F NMR (CDCl3) δ −55.33, −112.78; MS m/z 511 (M+1). This material was taken up in ether and treated with hydrochloric acid in ether to yield a bright yellow powder which was isolated by filtration as a hydrochloride salt.

후처리

  1. washThe organic layer was washed with water and brine
  2. extractionThe aqueous layer was extracted with ether
  3. dry with materialthe combined organics dried over magnesium sulfate
  4. filtrationFiltration and concentration

출처 및 근거

ORD 기록
ord-6c7405c6f6ec4c898302653cdb2c78e0
출처 데이터셋
uspto-grants-2006_04
특허 번호
US07030134B2

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