| abstract |
Compound of formula (IIa) of the following general formula: ** Formula ** in which: R1, R2 and R3 represent, independently of each other, -COOH, -P (O) (OH) 2 or -R6-P ( O) -OH, in which R6 represents an atom of H or a C1-C3 alkyl group, X1, X2 and X3 represent, independently of each other, LY in which L represents a C1-C3 alkyl group and represents -CO-NR7R8 in which R7 represents H or a C1-C6 alkyl group or a C1-C6 hydroxyalkyl group, and R8 represents a C1-C6 alkyl or C1-C6 hydroxyalkyl group, provided that at least R7 or R8 represents a C1-C6 hydroxyalkyl group; D represents CH or N; E represents CH or N; F1 represents CH or N; K1 to K12 each independently represent H, - (CH2) j-CH3 or - (CH2) i-OH, where j> = 0 a 3 ei> = 1 to 3, or K3 or K4 with K5 or K6 and / or K7 or K8 with K9 or K10, form a ring having 3 to 6 carbon atoms; or an enantiomer or a diastereoisomer of these or mixtures thereof |