Potassium Carbonate → 2-(3-methoxy-4-(5-(2-methoxy-5-(5-(3,4,5-trimethoxyphenyl)isoxazol-3-yl)phenoxy)pentyloxy)phenyl)-2,3-dihydroquinazolin-4(1H)-one

HRID 334319Notes

Reaction equation

HRID 334319 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[CH:13]=[C:12]([C:14]3[CH:19]=[C:18]([O:20][CH3:21])[C:17]([O:22][CH3:23])=[C:16]([O:24][CH3:25])[CH:15]=3)[O:11][N:10]=2)=[CH:5][C:4]=1[OH:26].C(=O)([O-])[O-].[K+].[K+].Br[CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][O:39][C:40]1[CH:45]=[CH:44][C:43]([CH:46]2[NH:55][C:54](=[O:56])[C:53]3[C:48](=[CH:49][CH:50]=[CH:51][CH:52]=3)[NH:47]2)=[CH:42][C:41]=1[O:57][CH3:58]>CN(C=O)C.C(OCC)(=O)C.CCCCCC>[CH3:58][O:57][C:41]1[CH:42]=[C:43]([CH:46]2[NH:55][C:54](=[O:56])[C:53]3[C:48](=[CH:49][CH:50]=[CH:51][CH:52]=3)[NH:47]2)[CH:44]=[CH:45][C:40]=1[O:39][CH2:38][CH2:37][CH2:36][CH2:35][CH2:34][O:26][C:4]1[CH:5]=[C:6]([C:9]2[CH:13]=[C:12]([C:14]3[CH:19]=[C:18]([O:20][CH3:21])[C:17]([O:22][CH3:23])=[C:16]([O:24][CH3:25])[CH:15]=3)[O:11][N:10]=2)[CH:7]=[CH:8][C:3]=1[O:2][CH3:1]

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 11337247Phenol, 2-methoxy-5-[5-(3,4,5-trimethoxyphenyl)-3-isoxazolyl]-HCID 510425832-[4-(5-Bromo-pentyloxy)-3-methoxy-phenyl]-2,3-dihydro-1H-quinazolin-4-one

Product 1

HCID 1176875312-(3-methoxy-4-(5-(2-methoxy-5-(5-(3,4,5-trimethoxyphenyl)isoxazol-3-yl)phenoxy)pentyloxy)phenyl)-2,3-dihydroquinazolin-4(1H)-oneYield 80%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 21226206Ethyl acetate hexaneSolvent

Conditions

Temperature
30 °C

Procedure

2-methoxy-5-(5-(3,4,5-trimethoxyphenyl)isoxazol-3-yl)phenol (20a) (357.36 mg 1.0 mmol) in DMF (20 mL) was added anhydrous potassium carbonate (690 mg, 5.0 mmol) and 2-[4-(5-Bromo-pentyloxy)-3-methoxy-phenyl]-2,3-dihydro-1H-quinazolin-4-one (2d) (419.29 mg, 1.0 mmol). The reaction mixture was stirred at a temperature of 30° C. for 30 h and the reaction was monitored by TLC using ethyl acetate-hexane (6:4) as a solvent system. Then to this ice is added and extracted with ethyl acetate. The solvent was evaporated under vacuum to afford the crude product. This was further purified by column chromatography using ethyl acetate:hexane (6:4) as a solvent system to obtain the pure product (21d) (546 mg, 80% yield).

Workup

  1. extractionextracted with ethyl acetate
  2. customThe solvent was evaporated under vacuum
  3. customto afford the crude product
  4. customThis was further purified by column chromatography

Sources & evidence

ORD record
ord-75f70718821a4b44849d87836707e1b4
Source dataset
uspto-grants-2014_11
Patent number
US08883809B2

Reaction notes

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