Water → 1-Cyclopropyl-6,8-difluoro-7-[7-ethyl-3,7-diazabicyclo [3.3.0] oct-1(5)-en-3-yl]-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

HRID 1534827Notes

Reaction equation

HRID 1534827 reaction equation
[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:23])=[C:11]([N:15]4[CH2:22][C:21]5[CH2:20][NH:19][CH2:18][C:17]=5[CH2:16]4)[C:12]=3[F:14])[C:7](=[O:24])[C:6]([C:25]([OH:27])=[O:26])=[CH:5]2)[CH2:3][CH2:2]1.[CH2:28](I)[CH3:29].C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:23])=[C:11]([N:15]4[CH2:22][C:21]5[CH2:20][N:19]([CH2:28][CH3:29])[CH2:18][C:17]=5[CH2:16]4)[C:12]=3[F:14])[C:7](=[O:24])[C:6]([C:25]([OH:27])=[O:26])=[CH:5]2)[CH2:2][CH2:3]1

Participants

6

Reactant 4

HCID 962WaterHCID 6340IodoethaneHCID 11430Potassium CarbonateHCID 98643051-Cyclopropyl-7-[3,7-diazabicyclo[3.3.0]oct-1(5)-en-3-yl]-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

Product 1

HCID 199082411-Cyclopropyl-6,8-difluoro-7-[7-ethyl-3,7-diazabicyclo [3.3.0] oct-1(5)-en-3-yl]-1,4-dihydro-4-oxoquinoline-3-carboxylic acidYield 52.8%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 1-cyclopropyl 6,8-difluoro-7-[3,7-diazabicyclo [3.3.0]-oct-1(5)-en-3-yl]-1,4-dihydro-4-oxoquinoline-3-carboxyl-ic acid (0.37 g) in dimethyl formamide (30 ml), which was prepared in Example 11, ethyliodide (0.17 g) and potassium carbonate (powder, 1 g) were added and stirred at room temperature for 24 hours. To the reaction mixture, water (100 ml) was added and the precipitate was filtered. The filter cake was purified by silica gel column chromatography (CHCl3 :methanol:acetic acid=6:3:1) to give the title compound (0.21 g, yield 52%).

Workup

  1. additionwere added
  2. filtrationthe precipitate was filtered
  3. customThe filter cake was purified by silica gel column chromatography (CHCl3 :methanol:acetic acid=6:3:1)

Sources & evidence

ORD record
ord-0d943c4d32f74101b46bc6db8669c410
Source dataset
uspto-grants-1992_02
Patent number
US05091384

Reaction notes

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