A facile synthesis of C-ring substituted luotonins and vasicinones has been realized via a super-acid-mediated aza-Nazarov cyclization of quinazolinonyl enones. The regioselectivity of the cyclization is highly dependent on proton availability in the reaction medium.
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http://dx.doi.org/10.1021/acs.orglett.9b03586 | DOI Listing |
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