Four new eremophilane type sesquiterpenoids, a new bakkane type sesquiterpenoid, and a new secoeremophilane type sesquiterpenoid were isolated from Ligularia brassicoides Hand.-Mass. (Asteraceae) collected in China, and were an epoxy lactone derived from 6-acyloxyeuryopsin 1, 6-acyloxy-9oxoeuryopsin 2, 6-acyloxy-9-oxofuranoeremophilane 3, 6-acyloxyeuryopsin 4, 6-acyloxy bakkane type epoxy lactone 5, and secovirgaurenol 6-O-(2'-hydroxymethyl)acrylate (6), respectively. All but one had a 2'-hydroxymethylacryloyloxy group at C-6. This is the first study to describe the chemical constituents of this species. (C) 2014 Elsevier Ltd. All rights reserved.
; SOUTHWESTERN SICHUAN
; HENGDUAN MOUNTAINS
; YUNNAN PROVINCE
1.Tokushima Bunri Univ, Fac Pharmaceut Sci, Tokushima 7708514, Japan 2.Nihon Univ, Coll Humanities & Sci, Dept Chem, Setagaya Ku, Tokyo 1568550, Japan 3.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China 4.Rikkyo Univ, Dept Chem, Toshima Ku, Tokyo 1718501, Japan 5.Rikkyo Univ, Res Ctr Smart Mol, Toshima Ku, Tokyo 1718501, Japan