作者:Hsing-Jang Liu、Gerardo Ulíbarri、Lloyd A. K. Nelson
DOI:10.1039/c39900001419
日期:——
An efficient totalsynthesis of the marinesesquiterpenoid isoacanthodoral 1 has been achieved using an intermolecular Diels–Alder approach.
使用分子间狄尔斯-阿尔德方法已实现了海洋倍半萜异硫氰酸盐1的有效全合成。
Synthetic studies on siccanin. Efficient construction of the cis-fused drimane unit and synthesis of isosiccanin methyl ether
作者:Hsing-Jang Liu、Brahma Ramani
DOI:10.1016/s0040-4039(00)82438-7
日期:——
Under ferric chloride catalysis, the Diels-Alder addition of dienone ester 3 to diene 4 occurred readily to give adduct 5 which possesses the complete carbon framework of the sesquiterpene unit of siccanin (1) with the correct relative stereochemistry. Further elaboration on 5 gave rise to the methylether of isosiccanin (2), an unnatural diastereomer of the antifungal antibiotic 1.
An intermolecular Diels–Alder approach to (±)-isoacanthodoral
作者:Hsing-Jang Liu、Gerardo Ulibarri、Lloyd A. K. Nelson
DOI:10.1139/v94-308
日期:1994.12.1
The totalsynthesis of marinesesquiterpenoid isoacanthodoral (3), in racemic form, has been accomplished, using the boron trifluoride catalyzed Diels–Alder reaction of dienone ester 4 and isoprene...
Bis-Michael Acceptors as Novel Probes to Study the Keap1/Nrf2/ARE Pathway
作者:Ludovic J. Deny、Hussein Traboulsi、André M. Cantin、Éric Marsault、Martin V. Richter、Guillaume Bélanger
DOI:10.1021/acs.jmedchem.6b01132
日期:2016.10.27
Nuclear factor erythroid 2-related factor 2 (Nrf2) is a master regulator that promotes the transcription of cytoprotective genes in response to oxidative/electrophilic stress. Various Michael-type compounds were designed and synthesized, and their potency to activate the Keap1/Nrf2/ARE pathway was evaluated. Compounds bearing two Michael-type acceptors proved to be the most active. Tether length and rigidity between the acceptors was crucial. This study will help to understand how this feature disrupts the interaction between Keap1 and Nrf2.
Photorearrangements of carbomethoxy-substituted cyclohexadienones in neutral media