The structures of lignans from Gmelina arborea Linn

Anjaneyulu, A. S. R. ; Jaganmohan Rao, K. ; Kameswara Rao, V. ; Ramachandra Row, L. ; Subrahmanyam, C. ; Pelter, A. ; Ward, R. S. (1975) The structures of lignans from Gmelina arborea Linn Tetrahedron, 31 (10). pp. 1277-1285. ISSN 0040-4020

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/004040...

Related URL: http://dx.doi.org/10.1016/0040-4020(75)80169-4

Abstract

Five new lignans isolated from Gmelina arborea Linn have been characterised. The parent compound arboreol, is 2a,6e-dipiperonyl-1e,2e-dihydroxy-3,7-dioxabicyclo-[3,3,0]-octane. It is accompanied by its 2-O-methyl ether, the 2-O-ethyl ether and its 2-epimer, isoarboreol,. The fifth substance, gmelanone, is the first reported example of a lignan derived from 3,6-dioxabicyclo-[3,2,1]-octane.

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