Reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:12]=[CH:11][C:10]([N+:13]([O-:15])=[O:14])=[CH:9][C:8]=1[CH:16]1[C:21]([C:22]([O:24][CH3:25])=[O:23])=[C:20]([CH3:26])[NH:19][C:18]([CH3:27])=[C:17]1[C:28]([O:30][CH3:31])=[O:29].[C:32]1([O:38][CH2:39][CH:40]2[O:42][CH2:41]2)[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1>CO>[OH:42][CH:40]([CH2:39][O:38][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)[CH2:41][NH:1][CH2:2][CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:12]=[CH:11][C:10]([N+:13]([O-:15])=[O:14])=[CH:9][C:8]=1[CH:16]1[C:21]([C:22]([O:24][CH3:25])=[O:23])=[C:20]([CH3:26])[NH:19][C:18]([CH3:27])=[C:17]1[C:28]([O:30][CH3:31])=[O:29]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
In 1,300 ml of methanol were dissolved 13 g of dimethyl 4-[2-(4-aminobutoxy)-5-nitrophenyl]-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate and 4.5 g of glycidyl phenyl ether, and the solution thus formed was refluxed under heating for 16 hours. The solvent was distilled off under reduced pressure. The residue was subjected to silica gel column chromatography, and the product was eluted with chloroform-methanol (96:4 v/v). Crude crystals were recrystallized from ethanol to give 9 g of dimethyl 4-[2-[4-(2-hydroxy-3-phenoxypropylamino)butoxy]-5-nitrophenyl]-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate.
Workup
- customthe solution thus formed
- temperaturewas refluxed
- temperatureunder heating for 16 hours
- distillationThe solvent was distilled off under reduced pressure
- washthe product was eluted with chloroform-methanol (96:4 v/v)
- customCrude crystals were recrystallized from ethanol
Sources & evidence
- ORD record
- ord-3c162ac0662642e38fab20fffb0079d3
- Source dataset
- uspto-grants-1988_02
- Patent number
- US04727082
Linked notes
Loading…