4-(Tri-n-butylstannyl)thiazole → 3-[(3R,4S)-3-Hydroxytetrahydro-2H-pyran-4-yl]-6-{[6-(1,3-thiazol-4-yl)pyridine-3-yl]methyl}benzo[h]quinazolin-4(3H)-one

HRID 82453Notes

Reaction equation

HRID 82453 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][CH:20]=[CH:19][C:18]=24)[N:15]=[CH:14][N:13]([C@H:23]2[CH2:28][CH2:27][O:26][CH2:25][C@@H:24]2[OH:29])[C:12]3=[O:30])=[CH:4][CH:3]=1.C([Sn](CCCC)(CCCC)[C:36]1[N:37]=[CH:38][S:39][CH:40]=1)CCC>CN(C=O)C.C(OCC)(=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[OH:29][C@@H:24]1[C@@H:23]([N:13]2[C:12](=[O:30])[C:11]3[C:16](=[C:17]4[CH:22]=[CH:21][CH:20]=[CH:19][C:18]4=[C:9]([CH2:8][C:5]4[CH:6]=[N:7][C:2]([C:36]5[N:37]=[CH:38][S:39][CH:40]=5)=[CH:3][CH:4]=4)[CH:10]=3)[N:15]=[CH:14]2)[CH2:28][CH2:27][O:26][CH2:25]1

Participants

7

Reactant 2

HCID 27632584-(Tri-n-butylstannyl)thiazoleHCID 510006176-[(6-chloropyridin-3-yl)methyl]-3-[(3R,4S)-3-hydroxytetrahydro-2H-pyran-4-yl]benzo[h]quinazolin-4(3H)-one

Product 1

HCID 510007833-[(3R,4S)-3-Hydroxytetrahydro-2H-pyran-4-yl]-6-{[6-(1,3-thiazol-4-yl)pyridine-3-yl]methyl}benzo[h]quinazolin-4(3H)-one

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of 6-[(6-chloropyridin-3-yl)methyl]-3-[(3R,4S)-3-hydroxytetrahydro-2H-pyran-4-yl]benzo[h]quinazolin-4(3H)-one (Example 1, 0.100 g, 0.237 mmol) in 1 mL of DMF under an atmosphere of nitrogen was added 4-(tributylstannyl)-1,3-thiazole (0.111 g, 0.296 mmol), tetrakis(triphenylphosphine)palladium(0) (0.055 g, 0.047 mmol), and copper(I) iodide (0.018 g, 0.095 mmol). The reaction was heated at 50° C. for 15 h, and then at 140° C. for an additional 6 h. The mixture was cooled to rt, diluted with ethyl acetate, and washed with brine and water. The solution was dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified via preparative reverse phase HPLC to provide the title compound that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 471.1478 for [M+H]+ [Calc'd for C26H23N4O3S, [M+H]+=471.1485]: 1H NMR (400 MHz, CD3OD) δ 9.18 (s, 1H), 9.01 (d, J=8.1 Hz, 1H), 8.62 (s, 1H), 8.58 (s, 1H), 8.54 (s, 1H), 8.39 (d, J=8.4 Hz, 1H), 8.32-8.30 (m, 1H), 8.08 (d, J=8.1 Hz, 1H), 7.98 (s, 1H), 7.76-7.68 (m, 2H), 4.72 (s, 2H), 4.72-4.66 (m, 1H), 4.36-4.24 (m, 1H), 4.09-3.99 (m, 2H), 3.53 (t, J=10.1 Hz, 1H), 3.23 (t, J=10.2 Hz, 1H), 2.36-2.34 (m, 1H), 2.00-1.95 (m, 1H).

Workup

  1. temperatureThe mixture was cooled to rt
  2. washwashed with brine and water
  3. dry with materialThe solution was dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified via preparative reverse phase HPLC

Sources & evidence

ORD record
ord-7f04beec7b1e4799accf74efc0a0e685
Source dataset
uspto-grants-2014_09
Patent number
US08846702B2

Reaction notes

Loading…