A process for preparing a compound of the formula ##STR1## wherein R.sup.1, m, o and p are described below, which comprises adding a base of the formula ##STR2## wherein R.sup.2, R.sup.3 and R.sup.4 are as described below, to a solution comprising a compound of the formula ##STR3## wherein R.sup.1, m, o and p are as described below, and a halonitromethane of the formula O.sub.2 NCH.sub.2 X, wherein X is a halogen atom dissolved in a non-aqueous inert solvent. The compounds of formula III are useful as intermediates in the syntheses of azabicyclo quinoline carboxylic acids, and their pharmaceutically acceptable salts and prodrugs, having antibacterial activity. This invention also relates to the base of formula IV wherein each R.sup.2 is butyl, R.sup.3 is hydrogen and each R.sup.4 is t-butyl.
一种制备化合物的方法,该化合物的
化学式为##STR1## 其中R.sup.1,m,o和p的描述如下,该方法包括向包含化合物的溶液中加入以下
化学式的碱基:##STR2## 其中R.sup.2,R.sup.3和R.sup.4如下所述,并加入以下
化学式的卤代
硝基甲烷O.sub.2 NCH.sub.2 X的溶液,其中X是卤素原子,该溶液溶于非
水惰性溶剂。
化学式III的化合物在合成具有抗菌活性的
氮杂双环喹啉羧酸及其药用可接受的盐和前药的中间体方面有用。本发明还涉及
化学式IV的碱基,其中每个R.sup.2为丁基,R.sup.3为氢,每个R.sup.4为叔丁基。