We report here the isolation of five new compounds, dictazoles A and B (1 and 2) and dictazolines C-E (5-7). Evidence is presented for the direct conversion of the cyclobutyl analogue 1 to its cyclohexyl constitutional isomer 5 via a vinyl cyclobutane rearrangement.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2849972PMC
http://dx.doi.org/10.1021/jo902566nDOI Listing

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