236
114. Saito Y, Iga S, Nakashima K, Okamoto Y, Gong X, Kuroda C, Tori M (2015) Terpenoids from
Ligularia virgaurea collected in China: the first example of two bakkane derivatives with an
anhydride-type ring C and nineteen new chemical constituents. Tetrahedron 71:8428
115. Saito Y, Hidaka M, Fukuda A, Okamoto Y, Nakashima K, Tori M, Hanai R, Gong X,
Watanabe E, Kuroda C (2017) Intra-specific diversity of the chemical composition of
Ligularia lamarum in the Hengduan Mountains, China: The structures of four new eremophilanes and a new seco-eremophilane. Phytochem Lett 20:139
116. Huang LH, Xu YJ, Liu HL, Liu XQ, Shang JN, Han GT, Yao MJ (2011) Eremophilane-type
sesquiterpene lactones from Ligularia hodgsonii Hook. Phytochemistry 72:514
117. Saito Y, Sasaki Y, Ohsaki A, Okamoto Y, Gong X, Kuroda C, Tori M (2014) Structures of six
new compounds from Ligularia brassicoides. Tetrahedron 70:9726
118. Wu QX, Wei QY, Shi YP (2006) Sesquiterpenes with various carbon skeletons from Ligularia
virgaurea ssp. oligocephala. Pharmazie 61:241
119. Fu B, Zhu QX, Yang XP, Jia ZJ (2002) A new bisesquiterpene from Ligularia macrophylla.
Chin Chem Lett 13:249
120. Hanai R, Watanabe S, Matsushima M, Nagano H, Kuroda C, Gong X (2019) Diversity in eremophilane components of Ligularia dictyoneura in Yunnan and Sichuan provinces of China.
Nat Prod Commun 14: doi: https://doi.org/10.1177/1934578X19878935
121. Wang WJ, Zhan R, Chen Y (2019) Two new eremophilane sesquiterpenoids from Ligularia
dictyoneura. Nat Prod Res doi: https://doi.org/10.1080/14786419.2018.1556652
122. Ishii H, Tozyo T, Nakamura M, Minato H (1970) Studies on sesquiterpenoids–
XIX. Structure and absolute configuration of liguloxide, liguloxidol and liguloxidol acetate.
Tetrahedron 26:2911
123. Ishizaki Y, Tanahashi Y, Takahashi T, Tori K (1969) Furanoeremophilan-14β,6α-olide, a new
furanosesquiterpene lactone from Ligularia hodgsonii Hook.f. The structure and nuclear
Overhauser effects. J Chem Soc Chem Commun:551
124. Ishizaki Y, Tanahashi Y, Moriyama Y, Takahashi T, Koyama H (1974) Sesquiterpenes from
the roots of Ligularia hodgsonii. Phytochemistry 13:674
125. Ishizaki Y, Tanahashi Y, Tsuyuki T, Takahashi T, Tori K (1979) Furanoeremophilan-14β,6αolide. A new furanosesquiterpene lactone of an eremophilane-type from Ligularia hodgsonii
Hook.f. Bull Chem Soc Jpn 52:1182
126. Kuroda C, Kobayashi R, Nagata A, Nakadozono Y, Itoh T, Okamoto Y, Tori M, Hanai R,
Gong X (2017) Terpenoids and phenylpropanoids in Ligularia duciformis, L. kongkalingensis, L. nelumbifolia, and L. limprichtii. Molecules 22:2062
127. Hanai R, Yamada H, Suzuki Y, Nagano H, Kawahara T, Yu JJ, Gong X, Kuroda C (2012)
Chemical constituents of Ligularia nelumbifolia and L. subspicata hybrid collected in
Shangri-La county, Yunnan province of China. Nat Prod Commun 7:1565
128. Shimizu A, Hanai R, Okamoto Y, Tori M, Yu JJ, Gong X, Kuroda C (2016) Chemical constituents in hybrids of Ligularia tongolensis and L. cymbulifera: chemical introgression in
L. tongolensis. Chem Biodivers 13:837
129. Bohlmann F, Grenz M (1979) Ein neues Furanoeremophilan-Derivat aus Ligularia macrophylla. Phytochemistry 18:491
130. Kuroda C, Inagaki K, Okamoto Y, Tori M, Hanai R, Yamada H, Nagano H, Gong X (2017)
Chemical diversity in Ligularia oligonema. Nat Prod Commun 12:1161
131. Bohlmann F, Zdero C (1980) New furanoeremophilane derivatives from Ligularia thyrsoidea. Phytochemistry 19:1550
132. Chen HM, Zhang KQ, Cai MS, Jia ZJ (1997) Terpenes from Ligularia intermedia. Ind J
Chem 36B:1198
133. Chen HM, Zhang KQ, Cai MS, Jia ZJ (1997) Terpenes from Ligularia intermedia. Ind J
Chem 37B:720
M. Tori and C. Kuroda
114. Saito Y, Iga S, Nakashima K, Okamoto Y, Gong X, Kuroda C, Tori M (2015) Terpenoids from
Ligularia virgaurea collected in China: the first example of two bakkane derivatives with an
anhydride-type ring C and nineteen new chemical constituents. Tetrahedron 71:8428
115. Saito Y, Hidaka M, Fukuda A, Okamoto Y, Nakashima K, Tori M, Hanai R, Gong X,
Watanabe E, Kuroda C (2017) Intra-specific diversity of the chemical composition of
Ligularia lamarum in the Hengduan Mountains, China: The structures of four new eremophilanes and a new seco-eremophilane. Phytochem Lett 20:139
116. Huang LH, Xu YJ, Liu HL, Liu XQ, Shang JN, Han GT, Yao MJ (2011) Eremophilane-type
sesquiterpene lactones from Ligularia hodgsonii Hook. Phytochemistry 72:514
117. Saito Y, Sasaki Y, Ohsaki A, Okamoto Y, Gong X, Kuroda C, Tori M (2014) Structures of six
new compounds from Ligularia brassicoides. Tetrahedron 70:9726
118. Wu QX, Wei QY, Shi YP (2006) Sesquiterpenes with various carbon skeletons from Ligularia
virgaurea ssp. oligocephala. Pharmazie 61:241
119. Fu B, Zhu QX, Yang XP, Jia ZJ (2002) A new bisesquiterpene from Ligularia macrophylla.
Chin Chem Lett 13:249
120. Hanai R, Watanabe S, Matsushima M, Nagano H, Kuroda C, Gong X (2019) Diversity in eremophilane components of Ligularia dictyoneura in Yunnan and Sichuan provinces of China.
Nat Prod Commun 14: doi: https://doi.org/10.1177/1934578X19878935
121. Wang WJ, Zhan R, Chen Y (2019) Two new eremophilane sesquiterpenoids from Ligularia
dictyoneura. Nat Prod Res doi: https://doi.org/10.1080/14786419.2018.1556652
122. Ishii H, Tozyo T, Nakamura M, Minato H (1970) Studies on sesquiterpenoids–
XIX. Structure and absolute configuration of liguloxide, liguloxidol and liguloxidol acetate.
Tetrahedron 26:2911
123. Ishizaki Y, Tanahashi Y, Takahashi T, Tori K (1969) Furanoeremophilan-14β,6α-olide, a new
furanosesquiterpene lactone from Ligularia hodgsonii Hook.f. The structure and nuclear
Overhauser effects. J Chem Soc Chem Commun:551
124. Ishizaki Y, Tanahashi Y, Moriyama Y, Takahashi T, Koyama H (1974) Sesquiterpenes from
the roots of Ligularia hodgsonii. Phytochemistry 13:674
125. Ishizaki Y, Tanahashi Y, Tsuyuki T, Takahashi T, Tori K (1979) Furanoeremophilan-14β,6αolide. A new furanosesquiterpene lactone of an eremophilane-type from Ligularia hodgsonii
Hook.f. Bull Chem Soc Jpn 52:1182
126. Kuroda C, Kobayashi R, Nagata A, Nakadozono Y, Itoh T, Okamoto Y, Tori M, Hanai R,
Gong X (2017) Terpenoids and phenylpropanoids in Ligularia duciformis, L. kongkalingensis, L. nelumbifolia, and L. limprichtii. Molecules 22:2062
127. Hanai R, Yamada H, Suzuki Y, Nagano H, Kawahara T, Yu JJ, Gong X, Kuroda C (2012)
Chemical constituents of Ligularia nelumbifolia and L. subspicata hybrid collected in
Shangri-La county, Yunnan province of China. Nat Prod Commun 7:1565
128. Shimizu A, Hanai R, Okamoto Y, Tori M, Yu JJ, Gong X, Kuroda C (2016) Chemical constituents in hybrids of Ligularia tongolensis and L. cymbulifera: chemical introgression in
L. tongolensis. Chem Biodivers 13:837
129. Bohlmann F, Grenz M (1979) Ein neues Furanoeremophilan-Derivat aus Ligularia macrophylla. Phytochemistry 18:491
130. Kuroda C, Inagaki K, Okamoto Y, Tori M, Hanai R, Yamada H, Nagano H, Gong X (2017)
Chemical diversity in Ligularia oligonema. Nat Prod Commun 12:1161
131. Bohlmann F, Zdero C (1980) New furanoeremophilane derivatives from Ligularia thyrsoidea. Phytochemistry 19:1550
132. Chen HM, Zhang KQ, Cai MS, Jia ZJ (1997) Terpenes from Ligularia intermedia. Ind J
Chem 36B:1198
133. Chen HM, Zhang KQ, Cai MS, Jia ZJ (1997) Terpenes from Ligularia intermedia. Ind J
Chem 37B:720
M. Tori and C. Kuroda