Hydrochloric Acid → 4-(2-Amidino-1,2,3,4-tetrahydroisoquinolin-7-yloxymethyl)-1-(pyridin-4-yl)piperidine-4-carboxylic acid hydrochloride
Reaction equation
[C:1]([N:4]1[CH2:13][CH2:12][C:11]2[C:6](=[CH:7][C:8]([O:14][CH2:15][C:16]3([C:28]([OH:30])=[O:29])[CH2:21][CH2:20][N:19]([C:22]4[CH:27]=[CH:26][N:25]=[CH:24][CH:23]=4)[CH2:18][CH2:17]3)=[CH:9][CH:10]=2)[CH2:5]1)(=[NH:3])[NH2:2].[ClH:31].[OH-].[Na+]>O>[ClH:31].[C:1]([N:4]1[CH2:13][CH2:12][C:11]2[C:6](=[CH:7][C:8]([O:14][CH2:15][C:16]3([C:28]([OH:30])=[O:29])[CH2:17][CH2:18][N:19]([C:22]4[CH:23]=[CH:24][N:25]=[CH:26][CH:27]=4)[CH2:20][CH2:21]3)=[CH:9][CH:10]=2)[CH2:5]1)(=[NH:2])[NH2:3]Participants
5
Conditions
- Temperature
- 60 °C
Procedure
4-(2-Amidino-1,2,3,4-tetrahydroisoquinolin-7-yloxymethyl)-1-(pyridin-4-yl)piperidine-4-carboxylic acid (7.55 g) was suspended in water (135 ml) and 1N hydrochloric acid (20 ml) was added. The mixture was heated to 60° C. and thereto was successively added dropwise 1N aqueous sodium hydroxide solution (2.9 ml) and 1N hydrochloric acid (1 ml). The mixture was stood at room temperature for 12 hours and the resultant crystals were collected by filtration, washed with water and dried to give the title compound (4.7 g).
Workup
- filtrationthe resultant crystals were collected by filtration
- washwashed with water
- customdried
Sources & evidence
- ORD record
- ord-733bf2d663034007ad71985e84407451
- Source dataset
- uspto-grants-2003_05
- Patent number
- US06562828B1
Reaction notes
Loading…