Phenylacetylene → (S)-2-(1-(6-amino-5-(phenylethynyl)pyrimidin-4-ylamino)ethyl)-5-chloro-3-phenylquinazolin-4(3H)-one

HRID 1474076Notes

Reaction equation

HRID 1474076 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]([NH:8][C@H:9]([C:11]2[N:20]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[C:19](=[O:27])[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][C:17]=3[Cl:28])[N:12]=2)[CH3:10])[C:3]=1I.[C:30]1([C:36]#[CH:37])[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1>C1COCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]([NH:8][C@H:9]([C:11]2[N:20]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[C:19](=[O:27])[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][C:17]=3[Cl:28])[N:12]=2)[CH3:10])[C:3]=1[C:37]#[C:36][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1

Participants

6

Reactant 2

HCID 10821PhenylacetyleneHCID 86723625(S)-2-(1-(6-amino-5-iodopyrimidin-4-ylamino)ethyl)-5-chloro-3-phenylquinazolin-4(3H)-one

Product 1

HCID 86723627(S)-2-(1-(6-amino-5-(phenylethynyl)pyrimidin-4-ylamino)ethyl)-5-chloro-3-phenylquinazolin-4(3H)-one

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
70 °C

Procedure

To (S)-2-(1-(6-amino-5-iodopyrimidin-4-ylamino)ethyl)-5-chloro-3-phenylquinazolin-4(3H)-one (58 mg, 0.11 mmol) (prepared according to the procedure in Example 5A) in THF (5 mL) was added Pd(PPh3)2Cl2 (2 mg, 2.5%), CuI (1 mg, 5%), TEA (0.1 mL, 0.16 mmol), and phenylacetylene (20 mg 0.16 mmol). After stirring at 70° C. for 2 hours, the solvent was stripped. The residue was purified on silica with 0 to 10% MeOH in DCM to give material that required further purification. Purification on silica with 0 to 100% EtOAc in hexanes gave (S)-2-(1-(6-amino-5-(phenylethynyl)pyrimidin-4-ylamino)ethyl)-5-chloro-3-phenylquinazolin-4(3H)-one. 1H NMR (400 MHz, DMSO-D6) δ7.88 (s, 1H), 7.78 (t, J=8.0 Hz, 1H), 7.88 (dt, J=6.8, 1.6 Hz, 2H), 7.59-7.41 (m, 10H), 6.92 (d, J=7.0 Hz, 1H), 6.75 (bs, 2H), 4.73 (p, J=6.8 Hz, 1H), 1.35 (d, J=6.7 Hz, 3H). ES/MS m/z=493.1 (M+H+).

Workup

  1. customThe residue was purified on silica with 0 to 10% MeOH in DCM
  2. customto give material that required
  3. customfurther purification
  4. customPurification on silica with 0 to 100% EtOAc in hexanes

Sources & evidence

ORD record
ord-bfab7fe1027c4ee0bbf9c54545a2c9be
Source dataset
uspto-grants-2015_04
Patent number
US09018221B2

Reaction notes

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