Triethylamine → 5-Amino-6-fluoro-1,4-dihydro-8-methoxy-1-methyl-4-oxo-7-[2-(2-pyridylamino)ethylamino]quinoline-3-carboxylic acid

HRID 561141Notes

Reaction equation

HRID 561141 reaction equation
[NH2:1][C:2]1[C:11]([F:12])=[C:10](F)[C:9]([O:14][CH3:15])=[C:8]2[C:3]=1[C:4](=[O:20])[C:5]([C:17]([OH:19])=[O:18])=[CH:6][N:7]2[CH3:16].[N:21]1[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=1[NH:27][CH2:28][CH2:29][NH2:30].C(N(CC)CC)C>CS(C)=O>[NH2:1][C:2]1[C:11]([F:12])=[C:10]([NH:30][CH2:29][CH2:28][NH:27][C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][N:21]=2)[C:9]([O:14][CH3:15])=[C:8]2[C:3]=1[C:4](=[O:20])[C:5]([C:17]([OH:19])=[O:18])=[CH:6][N:7]2[CH3:16]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 410428N~1~-(Pyridin-2-yl)ethane-1,2-diamineHCID 590028475-Amino-1-methyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxoquinoline-3-carboxylic acid

Product 1

HCID 247529425-Amino-6-fluoro-1,4-dihydro-8-methoxy-1-methyl-4-oxo-7-[2-(2-pyridylamino)ethylamino]quinoline-3-carboxylic acidYield 59.2%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A solution 5-amino-1-methyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxoquinoline-3-carboxylic acid (170 mg, 0.598 mmol), N-2-pyridyl-1,2-ethanediamine (123 mg, 0.897 mmol) and triethylamine (0.125 mL, 0.897 mmol) in DMSO (2 mL) was stirred at 100° C. After 4 h the reaction mixture was poured into ice water and the resulting precipitate was removed by filtration, washed with ethanol, and dried to yield 5-amino-6-fluoro-1,4-dihydro-8-methoxy-1-methyl-4-oxo-7-[2-(2-pyridylamino)ethylamino]quinoline-3-carboxylic acid (142 mg, 59%) as a pale yellow solid.

Workup

  1. customthe resulting precipitate was removed by filtration
  2. washwashed with ethanol
  3. customdried

Sources & evidence

ORD record
ord-0bdc7f0eea89424c81f0a1f5f5c57187
Source dataset
uspto-grants-2011_11
Patent number
US08063221B2

Reaction notes

Loading…