ol802409h_si_001.pdf (2.74 MB)
Catalytic Enantioselective Approach to the Eudesmane Sesquiterpenoids: Total Synthesis of (+)-Carissone
journal contribution
posted on 2009-01-15, 00:00 authored by Samantha R. Levine, Michael R. Krout, Brian M. StoltzA catalytic enantioselective approach to the eudesmane sesquiterpenoids is reported. The strategic use of a palladium-catalyzed enantioselective alkylation of vinylogous ester substrates forged the C(10) all-carbon quaternary center. This key transformation enabled a diastereoselective olefin hydrogenation to create the syn stereochemistry at C(7). The devised synthetic strategy allowed for the preparation of the antibacterial agent (+)-carissone and a formal synthesis of the P/Q-type calcium channel blocker (−)-α-eudesmol.
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eudesmane sesquiterpenoidsagentstrategysynthesisEudesmane Sesquiterpenoidssyn stereochemistrytransformationalkylationvinylogous ester substratesCatalytic Enantioselective Approacheudesmolenantioselective approachCarissonecenterTotal Synthesispreparationcalciumquaternarydiastereoselective olefin hydrogenationcarissoneblocker
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