Ld. Rowe et al., FACILE SYNTHESIS OF A CARBOXYLIC LINKER ON HALOFUGINONE - A METHOD TODERIVATIZE HAPTENS CONTAINING BOTH AMINE AND HYDROXY FUNCTIONALITIES, Synthetic communications, 23(15), 1993, pp. 2191-2197
A succinic acid derivative of halofuginone was synthesized that could
be easily bound to carrier proteins for halofuginone-specific antibody
production. N-trimethylsilylimidazole was used to protect the hydroxy
l group on halofuginone. Hydrolysis after treatment with succinic anhy
dride afforded the required derivative.