(±)-curcuhydroquinone had been achieved in high overall yield. The synthesis used bromobenzene derivatives as starting materials. The halogen-lithium exchange followed by addition of isoprenylacetone and reduction of the obtained carbinols are the key steps of the syntheticpathway. This synthetic approach provides a new route to the bisabolane sesquiterpenes.
Efficient Total Synthesis of Racemic Bisabolane Sesquiterpenes Curcuphenol and Xanthorrhizol Starting from Substituted Acetophenones
作者:Luisa E. Montiel、L. Gerardo Zepeda、Joaquín Tamariz
DOI:10.1002/hlca.201000111
日期:——
A totalsynthesis of natural bisabolanesesquiterpenescurcuphenol (1) and xanthorrhizol (2) was developed by using the substitutedacetophenones 4 and 5, respectively, as starting materials. The acetyl group of the latter was activated through ethoxycarbonylation to carry out the prenylation, which was performed successfully to give their respective precursors 11a and 11b, and 21 that were converted
Enantioselective dihydroxylation of xanthorrhizol from<i>Curcuma xanthorrhiza via</i>biotransformation using<i>Aspergillus Niger</i>
作者:Nurul Iman Aminudin、Ahmad Amzar Abdul Aziz、Zaima Azira Zainal Abidin、Deny Susanti、Muhammad Taher
DOI:10.1080/14786419.2022.2161543
日期:——
Extracts and methods comprising curcuma species
申请人:Gow Robert T.
公开号:US20080193573A1
公开(公告)日:2008-08-14
The present invention relates to extracts of
curcuma
species plant material using supercritical CO
2
extraction methods, methods of treating a subject suffering from suffering from amyloid plaque aggregation or fibril formation associated with, for example, Alzheimer's disease, and methods of inhibiting amyloid plaque aggregation or fibril formation in tissue thereof.