Abstract

V. Anuradha*, Mandava V. Basaveswara Rao¹ and Anand S. Aswar²

From the whole plant of Vanda tessalata a new phenanthrapyrone derivative was isolated. Its structure was elucidated as 3,7-dihydroxy-2-methoxy-9,10-dihydrophenanthrapyrone on the basis of spectroscopic data. This is the first report of phenanthrapyrone from Vanda tessalata.

Vanda tessalata; Orchidaceae; oxo-tessallatin; phenanthrene-9,10-dihydro-phenanthrapyrone

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