Hydrochloric Acid → (E)-N-(1-methyl-1H-indol-3-ylmethyl)-N-methyl-3-(6-amino-7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylamide

HRID 1362149Notes

Reaction equation

HRID 1362149 reaction equation
[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4]([CH2:11][N:12]([CH3:42])[C:13](=[O:41])/[CH:14]=[CH:15]/[C:16]2[CH:17]=[N:18][C:19]3[NH:20][C:21](=[O:40])[CH:22]([N:26]=C(C4C=CC=CC=4)C4C=CC=CC=4)[CH2:23][C:24]=3[CH:25]=2)=[CH:3]1.Cl.[OH-].[Na+]>O1CCOCC1>[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4]([CH2:11][N:12]([CH3:42])[C:13](=[O:41])/[CH:14]=[CH:15]/[C:16]2[CH:17]=[N:18][C:19]3[NH:20][C:21](=[O:40])[CH:22]([NH2:26])[CH2:23][C:24]=3[CH:25]=2)=[CH:3]1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 23574461(E)-N-(1-methyl-1H-indol-3-ylmethyl)-N-methyl-3-[6-(benzhydrylideneamino)-7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl]acrylamide

Product 1

HCID 10340289(E)-N-(1-methyl-1H-indol-3-ylmethyl)-N-methyl-3-(6-amino-7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylamideYield 71%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

To a suspension of (E)-N-(1-methyl-1H-indol-3-ylmethyl)-N-methyl-3-[6-(benzhydrylideneamino)-7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl]acrylamide (0.5 g, 0.9 mmole) in dioxane (15 mL) was added 1 N HCl (10 mL) with stirring at RT. After approximately 5 min the suspension cleared up then gradually reformed. After stirring for 1 h the reaction was neutralized with 1 N NaOH (10 mL) and concentrated to near dryness under vacuum. The resulting suspension was diluted with H2O (20 mL) and filtered, and the solid was rinsed with cold H2O and dried under vacuum. The slightly pinkish solid was triturated with Et2O, filtered, and dried under vacuum to give the title compound (248 mg, 71%) as an off-white solid: MS (ES) m/e 390.4 (M+H)+.

Workup

  1. stirringAfter stirring for 1 h the reaction
  2. concentrationconcentrated
  3. additionThe resulting suspension was diluted with H2O (20 mL)
  4. filtrationfiltered
  5. washthe solid was rinsed with cold H2O
  6. customdried under vacuum
  7. customThe slightly pinkish solid was triturated with Et2O
  8. filtrationfiltered
  9. customdried under vacuum

Sources & evidence

ORD record
ord-a54351551b78443a9a838de9408ef3f7
Source dataset
uspto-grants-2011_02
Patent number
US07879872B2

Reaction notes

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