The synthesis of mono- and dihydroxy aromadendrane sesquiterpenes, starting from natural (+)-aromadendrene-III
摘要:
The monoalcohols (-)-globulol (2), (-)-epiglobulol (3), (-)-ledol (4), and (+)-viridiflorol (5) were synthesized from (+)-aromadendrene (1). The cis-fused alloaromadendrone (14), the key intermediate used in the synthesis of 4 and 5, was obtained from the trans-fused apoaromadendrone (13) via a selective protonation of the thermodynamic enol trimethylsilylether 15. After hydroxylation of the tertiary C11 of 13 with RuO4, (+)-spathulenol (6), (-)-allospathulenol (7), and the aromadendrane diols 8-11 could be prepared. Compounds 2-11 were tested for antifungal properties, but their activity was only moderate.
Four heliangolides and other sesquiterpenes from Brasilia sickii
作者:Ferdinand Bohlmann、Michael Grenz、Jasmin Jakupovic、Robert M. King、Harold Robinson
DOI:10.1016/0031-9422(83)80224-6
日期:1983.1
Abstract The investigation of Brasiliasickii afforded, in addition to known compounds, two new bisabolene derivatives, an acetate closely related to damsin
The synthesis of mono- and dihydroxy aromadendrane sesquiterpenes, starting from natural (+)-aromadendrene-III
作者:Harrie J.M. Gijsen、Joannes B.P.A. Wijnberg、Gerrit A. Stork、Aede de Groot、Maarten A. de Waard、Johannes G.M. van Nistelrooy
DOI:10.1016/s0040-4020(01)88765-2
日期:1992.3
The monoalcohols (-)-globulol (2), (-)-epiglobulol (3), (-)-ledol (4), and (+)-viridiflorol (5) were synthesized from (+)-aromadendrene (1). The cis-fused alloaromadendrone (14), the key intermediate used in the synthesis of 4 and 5, was obtained from the trans-fused apoaromadendrone (13) via a selective protonation of the thermodynamic enol trimethylsilylether 15. After hydroxylation of the tertiary C11 of 13 with RuO4, (+)-spathulenol (6), (-)-allospathulenol (7), and the aromadendrane diols 8-11 could be prepared. Compounds 2-11 were tested for antifungal properties, but their activity was only moderate.