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Bibenzyl derivatives from the orchid Bulbophyllum protractum
P L MAJUMDER, M ROYCHOWDHURY,
Published in PERGAMON-ELSEVIER SCIENCE LTD
1997
Volume: 44
   
Issue: 1
Pages: 167 - 172
Abstract
Two new bibenzyl derivatives were isolated from the orchid Bulbophyllum protractum and designated bulbophyllin and bulbophyllidin. In addition batatasin-III (3,3'-dihydroxy-5-methoxy bibenzyl), 3,3',5-trimethoxybibenzyl, aloifol-I (3',4-dihydroxy-3,5-dimethoxybibenzyl), 3,3'-dimethoxy-4,5- methylenedioxybibenzyl, flavidin (2,7-dihydroxy-9,10-dihydro-5H- phenanthro[4,5-bcd]pyran), dihydroconiferyl alcohol, stigmasterol and sitosterol were isolated. The structures of bulbophyllin and bulbophyllidin were established as 2,3'-dihydroxy-3 methoxy-4,5-methylenedioxybibenzyl and 2,3'-dihydroxy-3,5-dimethoxybibenzyl, respectively, from spectral and chemical evidence.
About the journal
JournalData powered by TypesetPhytochemistry
PublisherData powered by TypesetPERGAMON-ELSEVIER SCIENCE LTD
ISSN0031-9422
Open AccessNo