Novel guaiane- and secoguaiane-type sesquiterpenes from Alpinia japonica (THUNB.) MIQ.
- 1 January 1987
- journal article
- Published by Pharmaceutical Society of Japan in CHEMICAL & PHARMACEUTICAL BULLETIN
- Vol. 35 (7) , 2849-2859
- https://doi.org/10.1248/cpb.35.2849
Abstract
Three novel guaiane-type sesquiterpenes, hanalpinone (I), isohanalpinone (II), and alpinenone (III), and two novel secoguaiane-type sesquiterpenes, alpinolide peroxide (IV) and 6-hydroxyalpinolide (V) have been isolated from the rhizomes of Alpinia japonica. Their structures were determined by spectroscopic methods, chemical conversions, and X-ray analysis. Their biosynthetic relationships with previously identified sesquiterpenes from Alpinia japonica are discussed.Keywords
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