Cesium carbonate → HCID 71042121, compound

HRID 925614Notes

Reaction equation

HRID 925614 reaction equation
Cl[C:2]1[N:7]=[CH:6][C:5]([CH2:8][C:9]2[CH:10]=[C:11]3[C:16](=[C:17]4[N:22]([CH3:23])[CH2:21][CH:20]=[CH:19][C:18]=24)[N:15]=[CH:14][N:13]([C@H:24]2[CH2:29][CH2:28][CH2:27][CH2:26][C@@H:25]2[OH:30])[C:12]3=[O:31])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[CH3:38][N:39]1[CH:43]=[C:42](B2OC(C)(C)C(C)(C)O2)[CH:41]=[N:40]1>C1COCC1.C(OCC)(=O)C.CC(C)([P](C(C)(C)C)([Pd][P](C(C)(C)C)(C(C)(C)C)C(C)(C)C)C(C)(C)C)C>[OH:30][C@H:25]1[CH2:26][CH2:27][CH2:28][CH2:29][C@@H:24]1[N:13]1[C:12](=[O:31])[C:11]2[C:16](=[C:17]3[N:22]([CH3:23])[CH2:21][CH:20]=[CH:19][C:18]3=[C:9]([CH2:8][C:5]3[CH:6]=[N:7][C:2]([C:42]4[CH:41]=[N:40][N:39]([CH3:38])[CH:43]=4)=[CH:3][CH:4]=3)[CH:10]=2)[N:15]=[CH:14]1

Participants

7

Reactant 3

HCID 10796Cesium carbonateHCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 71472666HCID 71472666, compound

Product 1

HCID 71042121HCID 71042121, compound

Reagents, catalysts & solvents 3

HCID 178418851HCID 178418851, compoundCatalystHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of 6-[(6-chloropyridin-3-yl)methyl]-3-[(1S,2S)-2-hydroxycyclohexyl]-10-methyl-9,10-dihydropyrido[3,2-h]quinazolin-4(3H)-one (Example 1, 0.040 g, 0.092 mmol) in 2 mL of THF under an atmosphere of nitrogen was added aqueous cesium carbonate (1 M, 0.18 mL, 0.18 mmol), 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (0.057 g, 0.28 mmol), and bis(tri-tert-butylphosphine)palladium(0) (4.0 mg, 0.0078 mmol). The reaction was heated at 100° C. for 16 h, cooled to rt, diluted with ethyl acetate, and washed with saturated aqueous sodium bicarbonate and brine. The solution was dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified via silica gel chromatography, eluting with 0-5% methanol in dichloromethane, to provide the title compound that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 483.1 for [M+H]+: 1H NMR (400 MHz, CD3OD) δ 8.92 (s, 1H), 8.52 (d, J=8.6 Hz, 1H), 8.40 (s, 1H), 8.08 (s, 1H), 7.95 (br s, 2H), 7.61-7.39 (m, 3H), 4.78 (s, 2H), 4.49 (s, 2H), 4.23 (br s, 1H), 3.92 (s, 3H), 3.74 (br s, 1H), 3.20 (s, 3H), 2.11 (br s, 1H), 1.83-1.63 (m, 5H), 1.29-1.23 (m, 2H).

Workup

  1. temperaturecooled to rt
  2. washwashed with saturated aqueous sodium bicarbonate and brine
  3. dry with materialThe solution was dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified via silica gel chromatography
  7. washeluting with 0-5% methanol in dichloromethane

Sources & evidence

ORD record
ord-fd8035d4907445d9b68c119bc41c17c5
Source dataset
uspto-grants-2016_03
Patent number
US09284312B2

Reaction notes

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