Hydrochloric Acid → HCID 21891037, compound

HRID 721658Notes

Reaction equation

[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][CH:7]=[C:6]2[O:15][C:16]1[CH:21]=[CH:20][C:19]([NH:22][C:23](=O)[CH2:24][O:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=2[Cl:32])=[CH:18][C:17]=1[CH3:34].Cl.[OH-].[Na+]>O1CCCC1>[Cl:32][C:27]1[CH:28]=[CH:29][CH:30]=[CH:31][C:26]=1[O:25][CH2:24][CH2:23][NH:22][C:19]1[CH:20]=[CH:21][C:16]([O:15][C:6]2[C:5]3[C:10](=[CH:11][C:12]([O:13][CH3:14])=[C:3]([O:2][CH3:1])[CH:4]=3)[N:9]=[CH:8][CH:7]=2)=[C:17]([CH3:34])[CH:18]=1

Participants

Conditions

Temperature: 0 °C

Procedure

N1-{4-[(6,7-Dimethoxy-4-quinolyl)oxy]-3-methylphenyl}-2-(2-chlorophenoxy)acetamide (200 mg) was dissolved in tetrahydrofuran (10 ml) to prepare a solution. A 1 M solution (1.3 ml) of a borane-tetrahydrofuran complex in tetrahydrofuran was then added to the solution, and the mixture was stirred with heating under reflux for 2 hr. The reaction solution was cooled to 0° C. and was adjusted to pH=1 by the addition of 1 N hydrochloric acid, followed by stirring with heating under reflux for 30 min. The reaction solution was cooled to 0° C., was adjusted to pH=12 by the addition of a 1 N aqueous sodium hydroxide solution, and was extracted with chloroform. After the concentration of the extract, the residue was purified on a column using chloroform/methanol to give the title compound (155 mg, yield 80%).

Workup

customto prepare a solution
temperaturewith heating
temperatureunder reflux for 2 hr
stirringby stirring
temperaturewith heating
temperatureunder reflux for 30 min
temperatureThe reaction solution was cooled to 0° C.
extractionwas extracted with chloroform
customAfter the concentration of the extract, the residue was purified on a column

Sources & evidence

ORD record: ord-0549019e6f264ea4985480c18e774c12
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07135466B2

Reaction notes

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