Hydrochloric Acid → HCID 21890242, compound

HRID 721645Notes

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][C:29]([O:32][CH3:33])=[CH:28][CH:27]=2)=[CH:18][CH:17]=1.Cl.[OH-].[Na+]>O1CCCC1>[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:17]=[CH:18][C:19]([NH:22][CH2:23][CH2:24][O:25][C:26]2[CH:27]=[CH:28][C:29]([O:32][CH3:33])=[CH:30][CH:31]=2)=[CH:20][CH:21]=1

Participants

Conditions

Temperature: 0 °C

Procedure

N1-{4-[(6,7-Dimethoxy-4-quinolyl)oxy]phenyl}-2-(4-methoxyphenoxy)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-5a71eb18ac4b4eb790c8d372881496f1
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07135466B2

Reaction notes

Loading…