Crystals of antimicrobial compound

Details Crystals of antimicrobial compound Crystals of antimicrobial compound

1994-09-12

1997-12-02

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546157, 546159, 514312, C07D21518, C07D21538, C07D21556

Patent

active

056938144

ABSTRACT:
A method for selectively obtaining any one of an anhydrate, a 1/2 hydrate, a 1 hydrate, and a 3/2 hydrate of -fluorocyclopropyl!-4-oxo-1,4-dihydroquinoline-3-carboxylic acid is disclosed, comprising treating the compound in an aqueous solvent or water or recrystallizing the compound from an aqueous solvent or water.

REFERENCES:
patent: 5017581 (1991-05-01), Nishitani et al.
patent: 5409933 (1995-04-01), Kim et al.
Hendrickson, Organic Chemistry, third edition, pp. 10 and 452-456, 1970.
An English specification which corresponds to German Patent Application DD-A-203 719, 1982.
Chemical Abstracts, vol. 119, No. 11, 13 Sep. 1993, Columbus, Oh, Y. Yukimoto et al., "Process for preparing 8-chloroquinolone derivatives" --Abstract No. 117137s, p. 919.
CN-A 1 062 906 22 Jul. 1992.

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