NOVEL 1(2H) QUINOLINE CARBOXYLIC ACID DERIVATIVES, METHOD FOR PREPARING SAME, AND USE THEREOF FOR SYNTHESISING SUBSTANCES HAVING ANTIBIOTIC PROPERTIES

摘要

Compounds of formula (I), wherein each of alc1, alc2 and alc3 which are the same or different, is an alkyl radical containing up to 8 carbon atoms, n is an integer from 0 to 8, and R1 and R2 are an O-alkyl radical containing up to 8 carbon atoms, or form a cyclic acetal together with the carbon atom to which they are attached, are disclosed. The compounds may be used in the preparation of substances suitable for preparing antibiotic substances.