Synthesis and antifungal activity of some 3-benzylidenechroman-4-ones, 3-benzylidenethiochroman-4-ones and 2-benzylidene-1-tetralones

Flavanoids from Caesalpinia pulcherrima.

https://pubs.rsc.org/en/content/articlepdf/2013/np/c3np70008a

The chemistry and biological activity of the Hyacinthaceae

Synthesis, stereochemical assignments, and biological activities of homoisoflavonoids.

Five phenolic compounds, namely N-trans-coumaroyltyramine (1), N-trans-feruloyltyramine (2), N-trans-feruloyloctopamine (3), 5,7-dihydroxy-8-methoxyflavone (4) and (3S)3,5,4'-trihydroxy-7-methoxy-6-methylhomoisoflavanone (5), were isolated from the fibrous roots of Liriope muscari (Liliaceae). Compounds 2-5 were isolated for the first time from the Liriope genus. Their in vitro antioxidant activities were assessed by the DPPH and ABTS scavenging methods with microplate assays. The structure-activity relationships of compounds 1-3 are discussed.

/pdf/phenolic-compounds-and-antioxidant-activities-of-liriope-abuno46zoa.pdf

P. Böhler

Papers

The homo-isoflavones, a new class of natural product. Isolation and structure of eucomin and eucomol.