Sodium methanethiolate → 3-[(1S,2S)-2-Hydroxycyclohexyl]-6-{[6-(methylthio)pyridine-3-yl]methyl}pyrido[3,4-h]quinazolin-4(3H)-one

HRID 1183823Notes

Reaction equation

HRID 1183823 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[CH:22]=[CH:21][N:20]=[CH:19][C:18]=24)[N:15]=[CH:14][N:13]([C@H:23]2[CH2:28][CH2:27][CH2:26][CH2:25][C@@H:24]2[OH:29])[C:12]3=[O:30])=[CH:4][CH:3]=1.[CH3:31][S-:32].[Na+]>CN(C=O)C.C(OCC)(=O)C>[OH:29][C@H:24]1[CH2:25][CH2:26][CH2:27][CH2:28][C@@H:23]1[N:13]1[C:12](=[O:30])[C:11]2[C:16](=[C:17]3[CH:22]=[CH:21][N:20]=[CH:19][C:18]3=[C:9]([CH2:8][C:5]3[CH:6]=[N:7][C:2]([S:32][CH3:31])=[CH:3][CH:4]=3)[CH:10]=2)[N:15]=[CH:14]1

Participants

5

Reactant 2

HCID 4378561Sodium methanethiolateHCID 532612286-[(6-Chloropyridin-3-yl)methyl]-3-[(1S,2S)-2-hydroxycyclohexyl]pyrido[3,4-h]quinazolin-4(3H)-one

Product 1

HCID 532612323-[(1S,2S)-2-Hydroxycyclohexyl]-6-{[6-(methylthio)pyridine-3-yl]methyl}pyrido[3,4-h]quinazolin-4(3H)-one

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
130 °C

Procedure

To a solution of 6-[(6-chloropyridin-3-yl)methyl]-3-[(1S,2S)-2-hydroxycyclohexyl]pyrido[3,4-h]quinazolin-4(3H)-one (Example 1, 0.120 g, 0.285 mmol) in 2 mL of DMF was added sodium thiomethoxide (0.100 g, 1.43 mmol). The mixture was heated in a sealed tube at 130° C. for 18 h, cooled to rt, and diluted with ethyl acetate. The organic solution was washed with water and brine, 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 proton NMR spectra consistent with theory and a mass ion (ES+) of 432.9 for [M+H]+: 1H NMR (400 MHz, CDCl3) δ 9.41 (s, 1H), 8.73-8.63 (m, 2H), 8.39 (s, 1H), 8.29-8.19 (m, 1H), 8.09 (s, 1H), 7.32-7.26 (m, 1H), 7.08 (d, J=8.3 Hz, 1H), 4.61 (br s, 1H), 4.50 (s, 2H), 4.05 (br s, 1H), 2.53 (s, 3H), 2.40-2.27 (m, 2H), 2.13-1.75 (m, 3H), 1.55-1.35 (m, 3H).

Workup

  1. temperaturecooled to rt
  2. washThe organic solution was washed with water and brine
  3. dry with materialdried 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-27f059cd6e784458a021b0b9c5e664bf
Source dataset
uspto-grants-2014_03
Patent number
US08664387B2

Reaction notes

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