1-Cyclopropyl-6,7,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid → 1-Cyclopropyl-6,8-difluoro-1,4-dihydro-7-[2-(2-methylaminoethyl)morpholino]-4-oxoquinoline-3-carboxylic acid

Participants

Reaction Steps

By the use of 1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid and 2-(2-methylaminoethyl)morpholine, the reaction is similarly carried out as Example 11 to give 1-cyclopropyl-6,8-difluoro-1,4-dihydro-7-[2-(2-methylaminoethyl)morpholino]-4-oxoquinoline-3-carboxylic acid 1/4 hydrate, melting at 243°-251° C. with decomposition.

Provenance & Evidence