Mausumi Basak

TL;DR: Cirhopetalanthridin and cirrhopetalidinin, two new stilbenoids isolated from the orchid Cirrus andersonii, were shown to be 4,7-dihydroxy-2,3-methylenedioxy-9,10-dhydrophenanthrene and 3,2′-Dihydrox-5′methoxy-4,5-methylenioxy bibenzyl, respectively, from spectral and chemical evidence as mentioned in this paper.

TL;DR: Cirrhopetalum andersonii was shown to be 7-hydroxy-4methoxy-2,3-methylenedioxy phenanthrene mainly from spectroscopic evidence.

TL;DR: Two new bibenzyl derivatives were isolated from the orchid Cirrhopetalum andersonii and the structures were established as 2′,3-dihydroxy-3′-methoxy-4,5-methylenedioxyb Bibenzyl and 3,3′ -dihYDroxy-4-5- methylenedioXY-bibenzym, mainly from spectral evidence.

TL;DR: The present study furnishes an overview of the hydroxy or/and methoxy-substituted 9,10-dihydro/phenanthrene, methylated, prenylated and other monomeric derivatives, dimeric and trimeric phenanthrenes and their biological activities.

TL;DR: In this paper, the structures of amoenylin and isoamenylin were established as 4-hydroxy-3,4′-dihydroxy-5-methoxybibenzyl and 3, 4′-hydroxyl 3,4,5-trimethoxy bibenenzyl, respectively, mainly from spectral evidence.

TL;DR: Eleven previously unknown compounds and 23 known compounds, including 20 phenanthrene or 9,10-dihydrophenanthrene derivatives, five bibenzyls, seven malate or tartrate benzyl ester glucosides, adenosine and gastrodin were isolated from tubers of Cremastra appendiculata.

TL;DR: Cumulatin and tristin, two new bibenzyl derivatives, were isolated from the orchids Dendrobium cumulatum and Bulbophyllum triste, respectively.