“…3) Compound 2 has also been shown to inhibit stem elongation in morning glory and spinach through the suppression of gibberellin biosynthesis and stimulation of jasmonic acid biosynthesis. [4][5][6][7] We have subsequently encountered its co-metabolites, (1S,4R,5S,6R)-7,9-dioxa-3-methyl-8-oxobicyclo [4.3.0]-2-nonene-4,5-diol (3), (4S,5S)-4,5-dihydroxy-2-methyl-cyclohex-2-enone (4), and (3aS,4R,5S,7aR)-7,9-dioxa-3-methyl-8-oxobicyclo-[4.3.0]-2-nonene-4,5-diol (5). 8,9) In this paper, we report the isolation, structural elucidation, and biological activities of the novel theobroxide-related compound, 4,5-dihydroxy-3-methyl-cyclohex-2-enone (1).…”