1,8-Diazabicyclo(5.4.0)undec-7-ene → 3-Quinolinecarboxylic acid,7-[3-(aminomethyl)-1-pyrrolidinyl]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-

HRID 2249247Notes

Reaction equation

HRID 2249247 reaction equation
[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:17])=[C:11](F)[C:12]=3[O:14][CH3:15])[C:7](=[O:18])[C:6]([C:19]([OH:21])=[O:20])=[CH:5]2)[CH2:3][CH2:2]1.[NH2:22][CH2:23][CH:24]1[CH2:28][CH2:27][NH:26][CH2:25]1.C1CCN2C(=NCCC2)CC1>C(#N)C>[NH2:22][CH2:23][CH:24]1[CH2:28][CH2:27][N:26]([C:11]2[C:12]([O:14][CH3:15])=[C:13]3[C:8]([C:7](=[O:18])[C:6]([C:19]([OH:21])=[O:20])=[CH:5][N:4]3[CH:1]3[CH2:3][CH2:2]3)=[CH:9][C:10]=2[F:17])[CH2:25]1

Participants

5

Reactant 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 50687753-PyrrolidinemethanamineHCID 70194651-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Product 1

HCID 104295303-Quinolinecarboxylic acid,7-[3-(aminomethyl)-1-pyrrolidinyl]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-Yield 35.4%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A mixture of 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid (200 mg), 3-aminomethylpyrrolidine (80 mg), DBU (110 mg) and anhydorous acetonitrile (3 ml) was refluxed for 2.5 hours. After cooling, the resulting precipitate was collected by filtration and recrystallized from a solution of dichloromethane-methanol (1:1) to give the title compound (90 mg) as white powdery crystals, mp 198°-200° C.

Workup

  1. temperaturewas refluxed for 2.5 hours
  2. temperatureAfter cooling
  3. filtrationthe resulting precipitate was collected by filtration
  4. customrecrystallized from a solution of dichloromethane-methanol (1:1)

Sources & evidence

ORD record
ord-0ef44994ab4a41f8b819b5dd31fa62a7
Source dataset
uspto-grants-1991_08
Patent number
US05043450

Reaction notes

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