Thursday, 26 October 2006
OLCC-McClain (Oakley-Lindsay Center)
187

Synthesis of flavone scaffolds for diversification and library development

Chris A. Knudtson, Chunjing Liu, Mianji Zhang, Jennifer Guerra, and Paul R. Hanson. University of Kansas, Lawrence, KS

The synthesis and diversification of a library of flavone scaffolds using oligomeric alkyl cyclohexylcarbodiimide (OACC) is reported. Scaffolds with potential as cyclin-dependent kinase inhibitors were targeted. Flavones have demonstrated antiprolific activity and are novel anti-cancer agents with possible selective cytotoxicity. Synthesis of 6- and 8-amino substituted scaffolds capable of coupling with a carboxcylic acid was performed. Amination of carboxcylic acids with flavone scaffolds was performed using OACC as a coupling reagent in a homogenous solution and polystyrene-bound carbonate as a scavenger. The use of SPOC bypassed the need for chromatography and yielded products through simple filtration in good purity and high yields.

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