Water → 1-Cyclopropyl-6,8-difluoro-1,4-dihydro-7-(2-methyl-2,5-diazabicyclo[2.2.1]hept-5-yl)-4-oxo-5-vinyl-3-quinolinecarboxylic acid

Participants

Reaction Steps

0.93 g of 1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-5-vinyl-3-quinolinecarboxylic acid, 0.5 g of 2-methyl-2,5-diazabicyolo[2.2.1]heptane and 0.36 g of DABCO are refluxed for 2 hours in a mixture of 6 ml of acetonitrile and 3 ml of dimethylformamide. At room temperature, the reaction mixture is treated with 2 ml of water, and the solid is filtered off with suction, washed with water and dried. 0.9 g of 1-cyclopropyl-6,8-difluoro-1,4-dihydro-7-(2-methyl-2,5-diazabicyclo[2.2.1]hept-5-yl)-4-oxo-5-vinyl-3-quinolinecarboxylic acid is obtained.

Provenance & Evidence