Cyclopentanol → HCID 21889877, compound

HRID 721308Notes

Reaction equation

HRID 721308 reaction equation
[Cl:1][C:2]1[CH:8]=[C:7]([O:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:22][CH3:23])=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][N:11]=2)[CH:6]=[CH:5][C:3]=1[NH2:4].Cl[C:25](Cl)([O:27][C:28](=[O:34])OC(Cl)(Cl)Cl)Cl.[CH:36]1(O)[CH2:40]C[CH2:38][CH2:37]1.C(=O)(O)[O-].[Na+]>C(Cl)Cl.C(N(CC)CC)C.C1(C)C=CC=CC=1>[Cl:1][C:2]1[CH:8]=[C:7]([O:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:22][CH3:23])=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][N:11]=2)[CH:6]=[CH:5][C:3]=1[NH:4][C:28](=[O:34])[O:27][CH:25]1[CH2:38][CH2:37][CH2:36][CH2:40]1

Participants

8

Reactant 4

HCID 7298CyclopentanolHCID 94429TriphosgeneHCID 516892Sodium BicarbonateHCID 218898992-Chloro-4-((6,7-dimethoxyquinazolin-4-yl)oxy)aniline

Product 1

HCID 21889877HCID 21889877, compoundYield 92.7%

Reagents, catalysts & solvents 3

HCID 1140TolueneSolventHCID 6344DichloromethaneSolventHCID 8471TriethylamineSolvent

Procedure

2-Chloro-4-[(6,7-dimethoxy-4-quinazolinyl)oxy]-aniline (50 mg) was added to toluene (5 ml), and triethylamine (0.5 ml), and the mixture was heated under reflux to prepare a solution. A solution of triphosgene (68 mg) in methylene chloride was then dded thereto, and the mixture was heated under reflux for 10 min. Next, 1-cyclopentanol (20 mg) was added thereto, and the mixture was further stirred with heating under reflux for 3 hr. A saturated aqueous sodium bicarbonate solution was added to stop the reaction, and the reaction solution was then extracted with chloroform, followed by washing with a 1 N aqueous hydrochloric acid solution, water, and saturated brine in that order. The extract was dried over sodium sulfate and was then concentrated. The residue was purified on a column using chloroform/methanol to give the title compound (62 mg, yield 80%).

Workup

  1. temperaturethe mixture was heated
  2. temperatureunder reflux
  3. customto prepare a solution
  4. temperaturethe mixture was heated
  5. temperatureunder reflux for 10 min
  6. temperaturewith heating
  7. temperatureunder reflux for 3 hr
  8. customthe reaction
  9. extractionthe reaction solution was then extracted with chloroform
  10. washby washing with a 1 N aqueous hydrochloric acid solution, water, and saturated brine in that order
  11. dry with materialThe extract was dried over sodium sulfate
  12. concentrationwas then concentrated
  13. customThe residue was purified on a column

Sources & evidence

ORD record
ord-8e9ad6a6bf7a46e089b5d9bd805d5134
Source dataset
uspto-grants-2006_11
Patent number
US07135466B2

Reaction notes

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