[1]. Sugiyama, Takuji; Narukawa, Yuji; Shibata, Shunsuke; Masui, Ryo; Kiuchi, Fumiyuki (2018). Three new 5,6,7,8-tetrahydroxy-5,6,7,8-tetrahydrochromone derivatives enantiomeric to agarotetrol from agarwood. Journal of Natural Medicines. 2018 Jun;72(3):667-674