232
28. Saito Y, Taniguchi M, Komiyama T, Ohsaki A, Okamoto Y, Gong X, Kuroda C, Tori M
(2013) Four new compounds from Ligularia virgaurea: isolation of eremophilane and
noreremophilane sesquiterpenoids and the absolute configuration of 2α-hydroxyeremophil-11en-9-one by CD spectrum and DFT calculation. Tetrahedron 69:8505
29. Nagano H, Iwazaki Y, Matsushima M, Sato M, Gong X, Shen Y, Hirota H, Kuroda C, Hanai R
(2007) High diversity of Ligularia dictyoneura in chemical composition and DNA sequence.
Chem Biodivers 4:2874
30. Wang C, Li J, Yang R, Zhau Y, Cheng Y, Zhang Z, He L (2014) Petasins from the rhizomes of
Ligularia fischeri and its derivatives. Rec Nat Prod 8:156
31. Shimizu A, Suzuki Y, Torihata A, Hanai R, Saito Y, Tori M, Gong X, Kuroda C (2012)
Complex diversity in Ligularia kanaitzensis. Nat Prod Commun 7:431
32. Okamoto Y, Taniguchi M, Terada K, Nakashima K, Gong X, Hanai R, Tori M, Kuroda C
(2016) Diversity in chemical constituents of Ligularia longihastata collected in China. Nat
Prod Commun 11:145
33. Okamoto Y, Fukui A, Hashida T, Shiojiri K, Kuroda C, Tori M, Gong X, Hanai R (2019)
Chemical composition of intergeneric hybrids between Ligularia and Cremanthodium collected in Sichuan province of China. Nat Prod Commun 14: doi: https://doi.org/10.117
7/1934578X19878931
34. Saito Y, Otsubo T, Iwamoto Y, Nakashima K, Okamoto Y, Gong X, Kuroda C, Tori M
(2015) Four new sesquiterpenoids from Ligularia subspicata collected in China: Isolation
of a bakkane-type lactone, an eremophilane-type lactone, and two orthoesters. Nat Prod
Commun 10:831
35. Torihata A, Hanai R, Gong X, Shen Y, Kuroda C (2007) Chemical and genetic differentiation of Ligularia tsangchanensis in Yunnan and Sichuan provinces of China. Chem
Biodivers 4:500
36. Nagano H, Hanai R, Yamada H, Matsushima M, Miura Y, Hoya T, Ozawa M, Fujiwara M,
Kodama H, Torihata A, Onuki H, Nezu Y, Kawai S, Yamazaki M, Hirota H, Saito Y, Tori M,
Ohsaki A, Gong X, Kuroda C (2012) Chemical and genetic study of Ligularia duciformis and
related species in Sichuan and Yunnan Provinces of China. Chem Biodivers 9:789
37. Kuroda C, Shibayama C, Inoue K, Okamoto Y, Tori M, Saito Y, Hanai R, Gong X (2016)
Chemical lineages of Ligularia fischeri. Nat Prod Commun 11:139
38. Shimizu A, Watanabe S, Hanai R, Okamoto Y, Tori M, Gong X, Kuroda C (2014) Chemical
and genetic studies on hybrid of Ligularia subspicata and Ligularia cyathiceps collected in
Yunnan province of China. Chem Biodivers 11:1438
39. Marco JA, Sanz JF, Garcia-Sarrion A, Rustaiyan A (1991) Germacrane esters from roots of
Ligularia persica. Phytochemistry 30:2325
40. Saito Y, Ichihara M, Takashima Y, Okamoto Y, Gong X, Hanai R, Kuroda C, Tori M (2017)
Chemical constituents of hybrids of Ligularia cyathiceps and L. lamarum/L. subspicata
collected in China: structures of subspicatins M, N, O 1 , and O 2 , and related compounds.
Phytochemistry 140:69
41. Ponomarenko LP, Kalinovsky AI, Berdyshev DV, Kuzmich AS, Menchinskaya ES, Pislyagin
EV, Kim NY, Glazunov VP, Dmitrenok PS, Silchenko AS, Avilov SA, Gorovoy PG, Stonik
VA (2016) Chemical constituents of Ligularia alticola Worosch. leaves and their biological
activities. Phytochem Lett 15:46
42. Tan A, Wang Z, Hong X, Li S, Hao X (2002) Study on the chemical constituents of Ligularia
dictyoneura. Chin Pharm Univ 33:104
43. Bohlmann F, Fritz U (1980) Isofukinone, an eremophilane from Ligularia speciosa.
Phytochemistry 19:2471
44. Saito Y, Ichihara M, Okamoto Y, Gong X, Kuroda C, Tori M (2014) Twelve new compounds
from Ligularia melanothyrsa; isolation of melanothrsins A-E, normelanothyrsin A, and other
eremophilane sesquiterpenoids. Tetrahedron 70:2621
M. Tori and C. Kuroda
28. Saito Y, Taniguchi M, Komiyama T, Ohsaki A, Okamoto Y, Gong X, Kuroda C, Tori M
(2013) Four new compounds from Ligularia virgaurea: isolation of eremophilane and
noreremophilane sesquiterpenoids and the absolute configuration of 2α-hydroxyeremophil-11en-9-one by CD spectrum and DFT calculation. Tetrahedron 69:8505
29. Nagano H, Iwazaki Y, Matsushima M, Sato M, Gong X, Shen Y, Hirota H, Kuroda C, Hanai R
(2007) High diversity of Ligularia dictyoneura in chemical composition and DNA sequence.
Chem Biodivers 4:2874
30. Wang C, Li J, Yang R, Zhau Y, Cheng Y, Zhang Z, He L (2014) Petasins from the rhizomes of
Ligularia fischeri and its derivatives. Rec Nat Prod 8:156
31. Shimizu A, Suzuki Y, Torihata A, Hanai R, Saito Y, Tori M, Gong X, Kuroda C (2012)
Complex diversity in Ligularia kanaitzensis. Nat Prod Commun 7:431
32. Okamoto Y, Taniguchi M, Terada K, Nakashima K, Gong X, Hanai R, Tori M, Kuroda C
(2016) Diversity in chemical constituents of Ligularia longihastata collected in China. Nat
Prod Commun 11:145
33. Okamoto Y, Fukui A, Hashida T, Shiojiri K, Kuroda C, Tori M, Gong X, Hanai R (2019)
Chemical composition of intergeneric hybrids between Ligularia and Cremanthodium collected in Sichuan province of China. Nat Prod Commun 14: doi: https://doi.org/10.117
7/1934578X19878931
34. Saito Y, Otsubo T, Iwamoto Y, Nakashima K, Okamoto Y, Gong X, Kuroda C, Tori M
(2015) Four new sesquiterpenoids from Ligularia subspicata collected in China: Isolation
of a bakkane-type lactone, an eremophilane-type lactone, and two orthoesters. Nat Prod
Commun 10:831
35. Torihata A, Hanai R, Gong X, Shen Y, Kuroda C (2007) Chemical and genetic differentiation of Ligularia tsangchanensis in Yunnan and Sichuan provinces of China. Chem
Biodivers 4:500
36. Nagano H, Hanai R, Yamada H, Matsushima M, Miura Y, Hoya T, Ozawa M, Fujiwara M,
Kodama H, Torihata A, Onuki H, Nezu Y, Kawai S, Yamazaki M, Hirota H, Saito Y, Tori M,
Ohsaki A, Gong X, Kuroda C (2012) Chemical and genetic study of Ligularia duciformis and
related species in Sichuan and Yunnan Provinces of China. Chem Biodivers 9:789
37. Kuroda C, Shibayama C, Inoue K, Okamoto Y, Tori M, Saito Y, Hanai R, Gong X (2016)
Chemical lineages of Ligularia fischeri. Nat Prod Commun 11:139
38. Shimizu A, Watanabe S, Hanai R, Okamoto Y, Tori M, Gong X, Kuroda C (2014) Chemical
and genetic studies on hybrid of Ligularia subspicata and Ligularia cyathiceps collected in
Yunnan province of China. Chem Biodivers 11:1438
39. Marco JA, Sanz JF, Garcia-Sarrion A, Rustaiyan A (1991) Germacrane esters from roots of
Ligularia persica. Phytochemistry 30:2325
40. Saito Y, Ichihara M, Takashima Y, Okamoto Y, Gong X, Hanai R, Kuroda C, Tori M (2017)
Chemical constituents of hybrids of Ligularia cyathiceps and L. lamarum/L. subspicata
collected in China: structures of subspicatins M, N, O 1 , and O 2 , and related compounds.
Phytochemistry 140:69
41. Ponomarenko LP, Kalinovsky AI, Berdyshev DV, Kuzmich AS, Menchinskaya ES, Pislyagin
EV, Kim NY, Glazunov VP, Dmitrenok PS, Silchenko AS, Avilov SA, Gorovoy PG, Stonik
VA (2016) Chemical constituents of Ligularia alticola Worosch. leaves and their biological
activities. Phytochem Lett 15:46
42. Tan A, Wang Z, Hong X, Li S, Hao X (2002) Study on the chemical constituents of Ligularia
dictyoneura. Chin Pharm Univ 33:104
43. Bohlmann F, Fritz U (1980) Isofukinone, an eremophilane from Ligularia speciosa.
Phytochemistry 19:2471
44. Saito Y, Ichihara M, Okamoto Y, Gong X, Kuroda C, Tori M (2014) Twelve new compounds
from Ligularia melanothyrsa; isolation of melanothrsins A-E, normelanothyrsin A, and other
eremophilane sesquiterpenoids. Tetrahedron 70:2621
M. Tori and C. Kuroda