... 1986, 21, 139 and references therein. (3) Cozzarelli, NR Science (Washington, DC) 1980, 207, 953. D 1988 American Chemical Society Page 2. Quinolonecarboxylic Acids ... Ho \ HO\ + = (J' (type A) NHz N Hz Journal of Medicinal Chemistry, 1988, Vol. 31, No. 8 1599 ...