Abstract
A novel, stable, biotin aldehyde derivative is reported in which the biotin moiety is N1,N3-protected by the allyloxycarbonyl group. The derivative is stable to sodium cyanoborohydride mediated reductive alkylation and is cleaved under mild Pd [0] catalysis. This novel biotin aldehyde should have wide application in avidin- and streptavidin-based detection systems and bioassays. The derivative is utilized in the synthesis of a biotinylated doxorubicin analogue that retains topoisomerase activity.
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