H. Tsujimori et K. Mori, Synthesis and absolute configuration of hongoquercin B, a sesquiterpene-substituted orsellinic acid isolated as a fungal metabolite, BIOS BIOT B, 64(7), 2000, pp. 1410-1415
(+)-Hongoquercin B (1), a weakly antibacterial fungal metabolite, was synth
esized by starting from (S)-3-hydroxy-2,2-dimethylcyclohexanone, and its ab
solute configuration was determined as depicted by structure 1.