Synthesis of (±)-Demethylnitidanin, Herpetol and Salvinal as well as Their Glycosyl Derivatives

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Three neolignans, (±)-demethylnitidanin(1), herpetol(2) and salvinal(3) were synthesized from methyl 4,5-dihydroxy-3-methoxy cinnamate or methyl 4-hydroxy-3-methoxy cinnamate with Ag2O-catalyzed biomimetic oxidative coupling as the key step of the sy
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