| abstract |
A subject of, the invention is the compounds of, formula (I): in which: Y oxygen, N-Nalk1, or NOalk2, X hydrogen, hydroxy1, alky1, alkeny1 or alkynyl or X NRcRd, Re and Rd hydrogen or alky1 Z hydrogen or halogen, R2 hydrogen or halogen, R3 hydrogen, alky1 or halogen, R hydrogen or alky1, R1 halogen, alky1, alkeny1 or alkyny1, R5 hydrogen or 0-alkyl, R6 alky1, CH2-O-alky1 or alkeny1 and R7 hydrogen or alky1 or R6 and R7 form together with the carbon atom which carries them a cyclic radical containing up to 8 carbon atoms. The compounds of formula (I) have antibiotic properties. |