Compound 11
From the following article
Terrequinone A biosynthesis through L-tryptophan oxidation, dimerization and bisprenylation
Carl J Balibar, Annaleise R Howard-Jones & Christopher T Walsh
Nature Chemical Biology 3, 584-592 (2007) Published online: 12 August 2007
doi:10.1038/nchembio.2007.20

