Formaldehyde → 4-({3-Chloro-4-[(1-methyl-1H-imidazole-2-yl)thio]phenyl}amino)-6-(methylamino)-7-(4-pyrrolidin-1-ylpiperidin-1-yl)quinoline-3-carbonitrile

HRID 499127Notes

Reaction equation

HRID 499127 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[N:12]1[CH2:17][CH2:16][CH:15]([N:18]3[CH2:22][CH2:21][CH2:20][CH2:19]3)[CH2:14][CH2:13]1)[N:8]=[CH:7][C:6]([C:23]#[N:24])=[C:5]2[NH:25][C:26]1[CH:31]=[CH:30][C:29]([S:32][C:33]2[N:34]([CH3:38])[CH:35]=[CH:36][N:37]=2)=[C:28]([Cl:39])[CH:27]=1.C=O.[C:42]([BH3-])#N.[Na+]>C(O)(=O)C.C(O)C>[Cl:39][C:28]1[CH:27]=[C:26]([NH:25][C:5]2[C:4]3[C:9](=[CH:10][C:11]([N:12]4[CH2:13][CH2:14][CH:15]([N:18]5[CH2:19][CH2:20][CH2:21][CH2:22]5)[CH2:16][CH2:17]4)=[C:2]([NH:1][CH3:42])[CH:3]=3)[N:8]=[CH:7][C:6]=2[C:23]#[N:24])[CH:31]=[CH:30][C:29]=1[S:32][C:33]1[N:34]([CH3:38])[CH:35]=[CH:36][N:37]=1

Participants

6

Reactant 3

HCID 712FormaldehydeHCID 5003444Sodium cyanoborohydrideHCID 68460429HCID 68460429, compound

Product 1

HCID 684588494-({3-Chloro-4-[(1-methyl-1H-imidazole-2-yl)thio]phenyl}amino)-6-(methylamino)-7-(4-pyrrolidin-1-ylpiperidin-1-yl)quinoline-3-carbonitrileYield 50.1%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidCatalystHCID 702EthanolSolvent

Procedure

A mixture of 130 mg (0.23 mmol) of 6-amino-4-[3-chloro-4-(1-methyl-1H-imidazole-2-ylsulfanyl)phenylamino]-7-(4-pyrrolidin-1-yl-piperidin-1-yl)quinoline-3-carbonitrile, 12.0 mg (0.4 mmol) of paraformaldehyde, 25.0 mg (0.39 mmol) of sodium cyanoborohydride and 2 drops of acetic acid in 15 mL of ethanol is heated under reflux for 8 hours. The mixture is cooled to room temperature and solvent removed in vacuo. A 12 mL solution of 1N sodium hydroxide is added to the residue, and the mixture is stirred. A crude solid is collected by filtration, washed with water and dried. Purification by silica gel chromatography (gradient 95:5 methylene chloride/methanol to 4:1 methylene chloride/methanol) gives 66.0 mg of the 4-({3-Chloro-4-[(1-methyl-1H-imidazole-2-yl)thio]phenyl}amino)-6-(methylamino)-7-(4-pyrrolidin-1-ylpiperidin-1-yl)quinoline-3-carbonitrile as an yellow solid, mp 242-250° C.

Workup

  1. temperatureis heated
  2. temperatureunder reflux for 8 hours
  3. customsolvent removed in vacuo
  4. additionA 12 mL solution of 1N sodium hydroxide is added to the residue
  5. filtrationA crude solid is collected by filtration
  6. washwashed with water
  7. customdried
  8. customPurification by silica gel chromatography (gradient 95:5 methylene chloride/methanol to 4:1 methylene chloride/methanol)

Sources & evidence

ORD record
ord-ab15b89f808b41869118dfa6d6e7f959
Source dataset
uspto-grants-2010_08
Patent number
US07767671B2

Reaction notes

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