98263-98-0Relevant academic research and scientific papers
A series of sesquiterpenes with a 7α-isopropyl side chain and related compounds isolated from Curcuma wenyujin
Harimaya,Gao,Ohkura,Kawamata,Iitaka,Guo,Inayama
, p. 843 - 853 (2007/10/02)
Sesquiterpenoids possessing a 7α-isopropyl group, such as curcumol (1a), curdione (2a), curcumalactone (3), and a new epoxy germacrane, (1R,10R)-epoxy-(-)-1,10-dihydrocurdione (5a), were isolated from the essential oil of Curcuma wenyujin. Other related new sesquiterpenes, neocurdione (4) and (1S,10S),(4S,5S)-germacrone-1(10),4-diepoxide (6) were also isolated from this plant. The stereostructures and absolute configurations of these sesquiterpenes were established on the basis of spectroscopic and chemical data as well as X-ray crystallographic analyses.
THE ABSOLUTE CONFIGURATION OF CURDIONE AND THE STEREOSTRUCTURE OF CURCUMALACTONE FROM CURCUMA WENYUJIN
Inayama, Seiichi,Gao, Ji-Fu,Hariyama, Kenzo,Hikichi, Manabu,Iitaka, Yoichi,et al.
, p. 2179 - 2182 (2007/10/02)
The absolute configuration of curdione isolated from Curcuma wenyujin was determined as 1 on the basis of its CD spectra and the X-ray diffraction of the p-bromobenzoate of 8αH-dihydrocurdione (2a).The absolute stereostructure of a new spirocyclopentanolide, curcumalactone occuring in the titled plant, was deduced as 3 based on its direct X-ray analysis and the biomimetic transformation of 1 to 3.
