Erythrina pterocarpans

Tabic 14 Erythrina Pterocarpans with Antibiotic Activity... 

Table 16 Activity of Erythrina Pterocarpans Against Caringcnic Oral Bacteria 31. ...

Tanaka, H., Tanaka, T., and Etoh, H., Three pterocarpans from Erythrina crista-galli, Phytochemistry, 45, 835, 1997. 

Most of the reported metabolites from Erythrina belong to the general class of isoflavonoids, whose biogenetic relationship is shown in Fig. (2). Under lhis general class are compounds reported to fall into the following classes isoflavones (biggest), pterocarpans, isoflavanones, isoflavans, isoflav-3-enes, coumastans and 3-phenylcoumarins, and phenoxychromones. 

Isoflavones form the largest class of metabolites ever reported from the genus Erythrina with pterocarpans trailing close at second. They however form the second largest class of bioactive compounds from the genus after the pterocarpans. This class shows the widest diversity of activity among all reported bioactive compounds. 

Table 15 Anti-MRSA Activity of Pterocarpans from the Genus Erythrina...

Rukachaisirikul, T. Innok, P. Suksamram, A. Erythrina alkaloids and a pterocarpan from the bark oiErythrina subumbrans. J. Nat. Prod., 2008, 71, 156-158. 

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