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1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 2-Anilino-N-methoxy-N,7-dimethyl-4-oxo-1-phenyl-1,4-dihydro-1,6-naphthyridine-5-carboxamide

HRID 1063583
Notes
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Reaction equation

HRID 1063583 reaction equation
[NH:1]([C:8]1[N:9]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:10]2[CH:11]=[C:12]([CH3:22])[N:13]=[C:14]([C:19]([OH:21])=O)[C:15]=2[C:16](=[O:18])[CH:17]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.[CH3:30][NH:31][O:32][CH3:33].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C>C(Cl)Cl>[NH:1]([C:8]1[N:9]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:10]2[CH:11]=[C:12]([CH3:22])[N:13]=[C:14]([C:19]([N:31]([O:32][CH3:33])[CH3:30])=[O:21])[C:15]=2[C:16](=[O:18])[CH:17]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 115162342-Anilino-7-methyl-4-oxo-1-phenyl-1,4-dihydro-1,6-naphthyridine-5-carboxylic acid

Product 1

HCID 219481392-Anilino-N-methoxy-N,7-dimethyl-4-oxo-1-phenyl-1,4-dihydro-1,6-naphthyridine-5-carboxamide
Yield 55%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

2-anilino-7-methyl-4-oxo-1-phenyl-1,4-dihydro-1,6-naphthyridine-5-carboxylic acid (80 mg, 0.22 mmol), N,O-dimethylhydroxylamine hydrochloride (64 mg, 0.66 mmol), HOBT (89 mg, 0.66 mmol) and EDCI (126 mg, 0.66 mmol) were dissolved in CH2Cl2 (9 mL). To this solution was added TEA (120 uL, 0.88 mmol). The reaction was stirred for 1 h and was diluted with CH2Cl2, washed with 0.5N HCl, saturated NaHCO3, and brine. The organic layer was collected, dried over Na2SO4, and concentrated in vacuo. The solid obtained was triturated with Et2O and dried to give 2-anilino-N-methoxy-N,7-dimethyl-4-oxo-1-phenyl-1,4-dihydro-1,6 naphthyridine-5-carboxamide as a light yellow solid (50 mg, 55%): LCMS RT: 2.08 min, MH+: 414.9. This transformation can also be accomplished by coupling the appropriate amine with the corresponding acid chloride.

Workup

  1. washwashed with 0.5N HCl, saturated NaHCO3, and brine
  2. customThe organic layer was collected
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated in vacuo
  5. customThe solid obtained
  6. customwas triturated with Et2O
  7. customdried

Sources & evidence

ORD record
ord-f3fdf870e59b4c909f25d654b8332883
Source dataset
uspto-grants-2005_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06964971B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes