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

Participants

Reaction Steps

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.

Provenance & Evidence