Acetic Acid → 7-Benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (pyridin-4-ylmethyl)-amide

HRID 1410746Notes

Reaction equation

HRID 1410746 reaction equation
C[O:2][C:3]([C:5]1[N:6]=[C:7]([C:24]#[N:25])[C:8]2[C:9](=[O:23])[N:10]([CH2:16][C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH:11]=[CH:12][C:13]=2[C:14]=1[OH:15])=O.[NH2:26][CH2:27][C:28]1[CH:33]=[CH:32][N:31]=[CH:30][CH:29]=1.C(O)(=O)C.O>CCO>[N:31]1[CH:32]=[CH:33][C:28]([CH2:27][NH:26][C:3]([C:5]2[N:6]=[C:7]([C:24]#[N:25])[C:8]3[C:9](=[O:23])[N:10]([CH2:16][C:17]4[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=4)[CH:11]=[CH:12][C:13]=3[C:14]=2[OH:15])=[O:2])=[CH:29][CH:30]=1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 962WaterHCID 773174-PyridinemethanamineHCID 682976087-Benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methyl ester

Product 1

HCID 601508527-Benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (pyridin-4-ylmethyl)-amideYield 35.1%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A mixture of 7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methyl ester (35 mg, 0.104 mmol) and 4-(aminomethyl)-pyridine (0.040 mL, 0.366 mmol) in 2 mL of EtOH was refluxed for 16 h. Acetic acid (0.1 mL) and water (3 mL) were added, and the mixture was allowed to come to r.t. The resulting precipitate was filtered, washed with 5 mL of water/MeOH (1:1), and dried under high vacuum to afford 15 mg of the title compound as a gray solid. MS: (+) m/z 412.20 (M+1).

Workup

  1. temperaturewas refluxed for 16 h
  2. customto come to r.t
  3. filtrationThe resulting precipitate was filtered
  4. washwashed with 5 mL of water/MeOH (1:1)
  5. customdried under high vacuum

Sources & evidence

ORD record
ord-6e956a19973344a9a808df7e3b2a9926
Source dataset
uspto-grants-2014_12
Patent number
US08921389B2

Reaction notes

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