abstract |
The present invention relates to a hydroxyalkyl starch (HAS) derivative of formula (I), wherein X is a leaving group, preferably selected from the group consisting of Ts, Ms, Cl, Br and I; Fl is a functional group comprising the group -NR'-, with R' being H or alkyl; L1 is a spacer bridging F1 and S; L2 is a spacer bridging -NR |