Water → 3-[Bis(4-methoxybenzyl)amino]-6-(1-isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-5-phenyl-2-pyrazinecarbonitrile

HRID 915041Notes

Reaction equation

HRID 915041 reaction equation
[CH:1]([N:4]1[C:9](=[O:10])[CH:8]=[CH:7][C:6]([C:11]2[N:16]=[C:15]([C:17]#[N:18])[C:14]([NH:19][CH2:20][C:21]3[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=3)=[N:13][C:12]=2[C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)=[N:5]1)([CH3:3])[CH3:2].[H-].[Na+].Cl[CH2:38][C:39]1[CH:44]=[CH:43][C:42]([O:45][CH3:46])=[CH:41][CH:40]=1.O>CC(N(C)C)=O>[CH3:28][O:27][C:24]1[CH:23]=[CH:22][C:21]([CH2:20][N:19]([CH2:38][C:39]2[CH:44]=[CH:43][C:42]([O:45][CH3:46])=[CH:41][CH:40]=2)[C:14]2[C:15]([C:17]#[N:18])=[N:16][C:11]([C:6]3[CH:7]=[CH:8][C:9](=[O:10])[N:4]([CH:1]([CH3:3])[CH3:2])[N:5]=3)=[C:12]([C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=3)[N:13]=2)=[CH:26][CH:25]=1

Participants

6

Reactant 4

HCID 962WaterHCID 24758Sodium hydrideHCID 699934-Methyloxybenzyl chlorideHCID 693318746-(1-Isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-3-[(4-methoxybenzyl)amino]-5-phenyl-2-pyrazinecarbonitrile

Product 1

HCID 693319503-[Bis(4-methoxybenzyl)amino]-6-(1-isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-5-phenyl-2-pyrazinecarbonitrile

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Conditions

Temperature
22.5 °C

Procedure

6-(1-Isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-3-[(4-methoxybenzyl)amino]-5-phenyl-2-pyrazinecarbonitrile (14.61 g) was added to a suspension of NaH (60% in oil suspension) (1.36 g) in DMA (36.5 ml) and the mixture was stirred at 20-25° C. for an hour. After addition of 1-(chloromethyl)-4-methoxybenzene (4.82 ml), the mixture was stirred at the same temperature for 20 hours. To the reaction mixture was added water (183 ml) and a precipitate was collected by filtration. The precipitate was purified by column chromatography on silica gel (EtOAc only) to give a solid. The solid was crystallized from a mixture of n-hexane and CHCl3 to give 3-[bis(4-methoxybenzyl)amino]-6-(1-isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-5-phenyl-2-pyrazinecarbonitrile (16.58 g).

Workup

  1. stirringthe mixture was stirred at the same temperature for 20 hours
  2. filtrationa precipitate was collected by filtration
  3. customThe precipitate was purified by column chromatography on silica gel (EtOAc only)
  4. customto give a solid
  5. customThe solid was crystallized from a mixture of n-hexane and CHCl3

Sources & evidence

ORD record
ord-50d12557b217420f95f60f4dd7f738cf
Source dataset
uspto-grants-2007_09
Patent number
US07265120B2

Reaction notes

Loading…