Sparfloxacin, an antibacterial drug

Abstract

The title compound, sparfloxacin or cis-5-amino-1-cyclopropyl-7-(3,5-dimethylpiperazin-1-yl)-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid trihydrate, C(19)H(22)F(2)N(4)O(3).3H(2)O, is an antibacterial drug. The molecule, which crystallizes as a trihydrate, is in the zwitterionic form in the solid state. Hydrogen bonds stabilize the molecules in the lattice.