Abstract
Chemical means were used to achieve the epimerization at C-6 of 6α-eudesmanolides, with several functionalizations, to 7β-eudesmanolides. The process consists of the LiAlH 4 reduction of a 6α-lactone, selective acetylation of the hydroxymethylene group at C-12, oxidation and reduction at C-6 to epimerize this carbon, deacetylation at C-12 and final formation of a 6β-lactone with RuH 2(Ph 3P) 4. The whole process yields nearly 40% of the 6β-lactone, oxidation with the ruthenium reagent (58 and 53%) being the limiting step.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
