Two New ent-Kaurane Diterpenoids from the Roots of Fritillaria thunbergii

Department of Korean Medicine, Dongguk University, Gyeongju-si, Gyeongbuk 780-714, KoreaReceived December 13, 2012, Accepted February 27, 2013Key Words : Fritillaria thunbergii , Liliaceae, ent-kaurane diterpenoidFritillaria thunbergii (Liliaceae) is a perennial herb that iswidely distributed in mountainous regions of northeastAsia.