Two complementary concise total syntheses of lycogarubin C (1) and lycogalic acid (2, aka chromopyrrolic acid) are detailed utilizing a 1,2,4,5-tetrazine --> 1,2-diazine --> pyrrole Diels-Alder strategy and enlisting acetylenic dienophiles.
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http://dx.doi.org/10.1021/ol100146b | DOI Listing |
Org Lett
March 2010
Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Two complementary concise total syntheses of lycogarubin C (1) and lycogalic acid (2, aka chromopyrrolic acid) are detailed utilizing a 1,2,4,5-tetrazine --> 1,2-diazine --> pyrrole Diels-Alder strategy and enlisting acetylenic dienophiles.
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