1-Cyclopropyl-6,7,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid → 3-Quinolinecarboxylic acid, 1-cyclopropyl-6,8-difluoro-1,4-dihydro-7-(3-((methylamino)methyl)-1-pyrrolidinyl)-4-oxo-

Participants

Reaction Steps

To 0.80 g (2.8 mmol) of the 1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid in 10 ml of acetonitrile and 0.43 g (2.8 mmol) of 1,8-diazobicyclo[5.4.0]undec-7-ene, was added 0.35 g (3.1 mmol) of N-methyl-3-pyrrolidinemethanamine. The mixture was refluxed for one hour and stirred overnight. The solids were filtered and washed with acetonitrile:ether (1:6) to give 0.81 g of the title compound, mp 265°-267° C.

Provenance & Evidence