1143-45-9Relevant academic research and scientific papers
TWO NEW SESQUITERPENOIDS (ALPINOLIDE AND HANAMOYL) FROM ALPINIA JAPONICA (THUNB.) MIQ.
Itokawa, Hideji,Morita, Hiroshi,Watanable, Kinzo,Takase, Akiko,Iitaka, Yoichi
, p. 1687 - 1690 (1984)
Two new sesquiterpenoids (alpinolide and hanamyol) were isolated from Alpinia japonica (THUNB.) MIQ. and the structures were determined by the spectral, the chemical evidence and X-ray analysis.The chemical transformation of hanalpinol into alpinolide may suggest the biogenesis of furopelargone A and B.
Novel Guaiane- and Secoguaiane- Type Sesquiterpenes from Alpinia japonica (THUNB.) MIQ.
Itokawa, Hideji,Morita, Hiroshi,Osawa, Kenji,Watanabe, Kinzo,Iitaka, Yoichi
, p. 2849 - 2859 (2007/10/02)
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-Alpinia japonica; Zingiberaceae; sesquiterpene; guaiane; secoguaiane; peroxide; X-ray analysis; 13C-NMR; biosynthesis
