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Kynapcin.svg validSVG Skeletal formula of kynapcin chemical compound found in the fungus Polyozellus multiplex that inhibits prolyl endopeptidases Created using acdlabs html ACD Inkscape and vim Own work after cite journal Yang LY Chang CF Huang YC Lee YJ Hu CC Tseng TH The first total synthesis of kynapcin by palladium catalysis