Structure and Neurotrophic Activity of seco-Prezizaane-Type Sesquiterpenes from Illicium merrillianum
- 9 March 2001
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Natural Products
- Vol. 64 (4) , 428-431
- https://doi.org/10.1021/np0005715
Abstract
An extract of the pericarps of Illicium merrillianum has yielded four new sesquiterpenes: 3α-hydroxycycloparvifloralone (1), 1,2-dehydrocycloparvifloralone (2), (11) 7,14-ortholactone-3α-hydroxyfloridanolide (3), and 11-O-debenzoyltashironin (4) along with cycloparvifloralone (5), merrillianone (6), and tashironin (7). The structures of 1−4 were determined on the basis of spectroscopic analyses. 11-O-Debenzoyltashironin (4) showed neurotrophic activity in primary culture of rat cortical neurons at 0.1−10 μM. However, cycloparvifloralone-type sesquiterpenes (1, 2, 5, and 6) and tashironin (7) had no neurotrophic activity at these concentrations.Keywords
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