6-chloro-3-(4-(2-hydroxy-2-methylpropoxy)-3-methoxyphenyl)-pyrimidin-4(3H)-one → 6-((4-chlorophenyl)ethynyl)-3-(4-(2-hydroxy-2-methylpropoxy)-3-methoxyphenyl)pyrimidin-4(3H)-one

HRID 2059868Notes

Reaction equation

HRID 2059868 reaction equation
Cl[C:2]1[N:7]=[CH:6][N:5]([C:8]2[CH:13]=[CH:12][C:11]([O:14][CH2:15][C:16]([OH:19])([CH3:18])[CH3:17])=[C:10]([O:20][CH3:21])[CH:9]=2)[C:4](=[O:22])[CH:3]=1.C([Sn](CCCC)(CCCC)[C:28]#[C:29][C:30]1[CH:35]=[CH:34][C:33]([Cl:36])=[CH:32][CH:31]=1)CCC>CN(C=O)C.C(Cl)Cl.[Cu]I.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>[Cl:36][C:33]1[CH:34]=[CH:35][C:30]([C:29]#[C:28][C:2]2[N:7]=[CH:6][N:5]([C:8]3[CH:13]=[CH:12][C:11]([O:14][CH2:15][C:16]([OH:19])([CH3:18])[CH3:17])=[C:10]([O:20][CH3:21])[CH:9]=3)[C:4](=[O:22])[CH:3]=2)=[CH:31][CH:32]=1

Participants

7

Reactant 2

HCID 585799166-chloro-3-(4-(2-hydroxy-2-methylpropoxy)-3-methoxyphenyl)-pyrimidin-4(3H)-oneHCID 58580242Tributyl((4-chlorophenyl)ethynyl)stannane

Product 1

HCID 469275036-((4-chlorophenyl)ethynyl)-3-(4-(2-hydroxy-2-methylpropoxy)-3-methoxyphenyl)pyrimidin-4(3H)-oneYield 30%

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
55 °C

Procedure

A mixture of 6-chloro-3-(4-(2-hydroxy-2-methylpropoxy)-3-methoxyphenyl)pyrimidin-4(3H)-one Part A of Procedure 11 (30 mg, 0.092 mmol), tributyl((4-chlorophenyl)-ethynyl)stannane (79 mg, 0.185 mmol), copper (I) iodide (5.28 mg, 0.028 mmol), and palladiumtetrakis (16 mg, 0.014 mmol) in DMF (1 mL) was stirred under nitrogen at 55° C. for 3 hours. The reaction was cooled to RT, diluted with CH2Cl2, washed with water, sat. NaHCO3, dried (Na2SO4), and concentrated to afford the crude product. The residue was purified using ISCO flash chromatography (silica gel/hexanes-ethyl acetate 100:0 to 0:100 gradient). The product was re-purified using HPLC (C18 column/10:90 to 90:10 MeOH—H2O) to afford the desired product 6-((4-chlorophenyl)ethynyl)-3-(4-(2-hydroxy-2-methylpropoxy)-3-methoxyphenyl)pyrimidin-4(3H)-one J-2 (12.4 mg, 0.028 mmol, 30.0% yield) as a yellow solid. LC/MS 425 (M+H)+, tR 0.95 min (method 5); 1H NMR (400 MHz, CDCl3) δ 8.14-8.17 (1H, m), 7.55 (2H, d), 7.39 (2H, d), 7.01 (1H, d), 6.85-6.93 (2H, m), 6.75 (1H, s), 3.89 (3H, s), 3.88 (2H, s), 1.37 (6H, s).

Workup

  1. temperatureThe reaction was cooled to RT
  2. washwashed with water, sat. NaHCO3
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated
  5. customto afford the crude product
  6. customThe residue was purified
  7. customThe product was re-purified

Sources & evidence

ORD record
ord-aa4a699c74f843eeae1bacdc9a93fc22
Source dataset
uspto-grants-2012_10
Patent number
US08278316B2

Reaction notes

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