| abstract |
The subject of the invention is the products of formula (IB): <IMAGE> in which: R2B and R3B, which are identical or different, represent hydrogen; halogen; hydroxyl; mercapto; cyano; nitro; sulpho; formyl; benzoyl; acyl; carboxy in the free, salt or ester form; cycloalkyl; acyloxy; alkyl; alkenyl; alkynyl; alkyloxy; alkylthio; aryl; arylalkyl; arylalkenyl; aryloxy or arylthio; d) a radical <IMAGE> where R6B, R7B, R8B and R9B represent hydrogen or optionally substituted alkyl, alkenyl, aryl or arylalkyl, or -(CH2)m1-S(O)m2-X-R14, where m1 represents 0 to 4, m2 represents 0 to 2, X-R14 represents -NH2 or X represents -NH , NH-CO-, -NH-CO-NH- or a single bond and R14 represents optionally substituted alkyl, alkenyl or aryl. |