Cirrhopetalanthridin and cirrhopetalidinin, two new stilbenoids isolated from the orchid Cirrhopetalum andersonii, were shown to be 4,7-dihydroxy-2,3-methylenedioxy-9,10-dihydrophenanthrene and 3,2′-dihydroxy-5′methoxy-4,5-methylenedioxy bibenzyl, respectively, from spectral and chemical evidence. © 1991.

P L MAJUMDER

M BASAK

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Two stilbenoids from the orchid Cirrhopetalum andersonii

Phytochemistry

Cirrhopetalidin and cirrhopetalinin, two new bibenzyl derivatives, and 3,3'-dihydroxy-5-methoxybibenzyl (batatasin-III) were isolated from the orchid Cirrhopetalum andersonii. The structures of the new bibenzyls were established as 2',3-dihydroxy-3'-methoxy-4,5-methylenedioxybibenzyl and 3,3'-dihydroxy-4,5-methylenedioxybibenzyl, mainly from spectral evidence.

2 BIBENZYL DERIVATIVES FROM THE ORCHID CIRRHOPETALUM-ANDERSONII

Lusianthrin and lusianthridin, two new stilbenoids, were isolated from the orchid Lusia indivisa. The structures of lusianthrin and lusianthridin were established from detailed spectral and chemical evidence. © 1990.

Lusianthrin and lusianthridin, two stilbenoids from the orchid Lusia indivisa

Cirrhopetalin, a new phenolic compound, isolated from the orchid Cirrhopetalum andersonii was shown to be 7-hydroxy-4-methoxy-2,3-methylenedioxy phenanthrene mainly from spectroscopic evidence. © 1990.

Journal	Phytochemistry
Publisher	-
ISSN	0031-9422