Cyclopentanecarbaldehyde → HCID 178461198, 화합물

HRID 81219

반응식

HRID 81219 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[C:13]3[N:14]([CH2:17][C@H:18]4[CH2:23][CH2:22][C@H:21]([CH3:24])[CH2:20][CH2:19]4)[CH:15]=[N:16][C:12]=3[CH:11]=[C:10]([C:25]#[N:26])[N:9]=2)[CH:5]=[N:6][CH:7]=1.[Cl-].[Cl-].CC1(C)CCCC(C)(C)[N-]1.[Mg+2].[Li+].[CH:41]1([CH:46]=[O:47])[CH2:45][CH2:44][CH2:43][CH2:42]1>C1COCC1>[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[C:13]3[N:14]([CH2:17][C@H:18]4[CH2:23][CH2:22][C@H:21]([CH3:24])[CH2:20][CH2:19]4)[C:15]([CH:46]([CH:41]4[CH2:45][CH2:44][CH2:43][CH2:42]4)[OH:47])=[N:16][C:12]=3[CH:11]=[C:10]([C:25]#[N:26])[N:9]=2)[CH:5]=[N:6][CH:7]=1

참가 물질

5

반응물 3

HCID 70106CyclopentanecarbaldehydeHCID 25150783Lithium magnesium 2,2,6,6-tetramethylpiperidin-1-ide dichlorideHCID 178461253HCID 178461253, 화합물

생성물 1

HCID 178461198HCID 178461198, 화합물

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

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온도
-78 °C

실험 절차

4-(5-chloropyridin-3-yl)-3-((trans-4-methylcyclohexyl)methyl)-3H-imidazo[4,5-c]pyridine-6-carbonitrile (product of Step 2, Preparative Example 3.1) (500 mg, 1.367 mmol) was dissolved in THF (13.7 mL) and cooled to −78° C. in a flask under nitrogen before adding lithium magnesium 2,2,6,6-tetramethylpiperidin-1-ide dichloride, 1.0 M in THF (3.01 mL, 3.01 mmol). After stirring at −78° C. for 45 minutes, cyclopentanecarbaldehyde (321 μL, 3.01 mmol) was added, and the reaction was allowed to stir at −78° C. for 30 minutes before removing the cooling bath. After warming to room temperature over 1 hr, the reaction mixture was quenched with sat. aqueous ammonium chloride and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, filtered, and concentrated. The residue was purified by silica gel chromatography (hexanes/0-65% EtOAc) to afford 4-(5-chloropyridin-3-yl)-2-(cyclopentyl(hydroxy)methyl)-3-((trans-4-methylcyclohexyl)methyl)-3H-imidazo[4,5-c]pyridine-6-carbonitrile. MS ESI calc'd. for C26H30ClN5O [M+H]+ 464. found 464. 1H NMR (600 MHz, CD3OD) δ 8.78 (d, J=2.1, 1H), 8.74 (d, J=1.3, 1H), 8.27-8.24 (m, 1H), 8.23 (s, 1H), 4.68 (d, J=9.1, 1H), 4.15-3.88 (m, 2H), 2.73 (dd, J=8.0, 16.0, 1H), 1.99-1.91 (m, 1H), 1.76-1.54 (m, 6H), 1.50 (d, J=13.3, 2H), 1.31-1.22 (m, 1H), 1.19-1.09 (m, 1H), 1.02-0.96 (m, 1H), 0.92-0.77 (m, 4H), 0.75 (d, J=6.5, 3H), 0.60-0.47 (m, 2H).

후처리

  1. stirringto stir at −78° C. for 30 minutes
  2. custombefore removing the cooling bath
  3. temperatureAfter warming to room temperature over 1 hr
  4. customthe reaction mixture was quenched with sat. aqueous ammonium chloride
  5. extractionextracted with ethyl acetate
  6. dry with materialThe organic layer was dried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was purified by silica gel chromatography (hexanes/0-65% EtOAc)

출처 및 근거

ORD 기록
ord-e784fbea9a274ac5af29840baca69d9c
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846657B2

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