242
254. Zhu H, Tu P (2004) A new triterpenoid saponin and two neolignans from Ligularia veitchiana. Z Naturforsch 59b:1063
255. Zhang J, Jiang W, Cao HJ, Qu Y, Liao ZX, Liu C, Sun JY (2018) Two new monoterpene lactones from Ligularia rumicifolia (J.R. Drumm.) S.W. Liu and their anti-proliferative activities. Phytochem Lett 28:55
256. Chen JJ, Li WX, Gao K, Jin XJ, Yao XJ (2012) Absolute structures of monoterpenoids with
a delta-lactone-containing skeleton from Ligularia hodgsonii. J Nat Prod 75:1184
257. Liu X, Li J, Li J, Liu Q, Xun M (2019) A new flavonoid from Ligularia fischeri. Chem Nat
Comp 55:638
258. Hussain SH, Latif A, Cox R, Simpson TJ, Ali M, Arfan M, Uddin G (2014) Phytochemicals
from the aerial parts of Ligularia thomsonii and their radical scavenging activity. Phytochem
Lett 7:6
259. Liu Q, Shen L, Wang TT, Chen CJ, Qi WY, Gao K (2010) Novel modified furanoeremophilanetype sesquiterpenes and benzofuran derivatives from Ligularia veitchiana. Food Chem 122:55
260. Ma B, Gao K, Shi YP, Jia ZJ (1997) Phenol derivatives from Ligularia intermedia.
Phytochemistry 46:915
261. Hua L, Chen J, Gao K (2012) A new pyrrolizidine alkaloid and other constituents from the
roots of Ligularia achyrotricha (Diels) Ling. Phytochem Lett 5:541
262. Zhao Y, Jia Z, Yang L (1994) Sinapyl alcohol derivatives and other constituents from
Ligularia nelumbifolia. Phytochemistry 37:1149
263. Zhao Y, Jia ZJ, Wang L, Wang JG (1993) Sinapyl alcohol derivatives and other constituents
from the roots of Ligularia nelumbifolia. Chin Chem Lett 4:895
264. Toyoda K, Yaoita Y, Kikuchi M (2005) Three new dimeric benzofuran derivatives from the
roots of Ligularia stenocephala Matsum. et Koidz. Chem Pharm Bull 53:1555
265. Jia ZJ, Zhao Y (1994) Four new furans from the roots of Ligularia przewalskii. J Nat
Prod 57:146
266. Kuroda C, Kikuchi K, Torihata A, Takeshita K, Gong X, Shen Y, Hirota H, Onuki H, Hanai
R (2007) Chemical and genetic diversity of Ligularia latihastata and Ligularia villosa in
Yunnan province of China. Chem Biodivers 4:2210
267. Murae T, Tanahashi Y, Takahashi T (1968) 5,6-Dimethoxy-2-isopropenylbenzofuran from
Ligularia stenocephala Matsum. et Koidz. Tetrahedron 24:2177
268. Yan FL, Wang AX, Jia ZJ (2004) Benzofuran derivatives from Ligularia stenocephala. J Chin
Chem Soc 51:863
269. Gao K, Wang WS, Jia ZJ (1998) Coniferyl and sinapyl alcohol derivatives from Ligularia
duciformis. Phytochemistry 47:269
270. Zhao Y, Hao X, Lu W, Cai J, Yu H, Sevénet T, Guéritte F (2002) Syntheses of two cytotoxic sinapyl alcohol derivatives and isolation of four new related compounds from Ligularia
nelumbifolia. J Nat Prod 65:902
271. Zhao Y, Peng HR, Jia ZJ (1995) Six sinapyl alcohol derivatives from Ligularia nelumbifolia.
Chin Chem Lett 6:387
272. Gao K, Jia ZJ (2000) Two new compounds from Ligularia duciformis. Indian J Chem 39B:160
273. Li YS, Wang ZT, Zhang M, Luo SD, Chen JJ (2005) A new pinoresinol-type lignan from
Ligularia kanaitzensis. Nat Prod Res 19:125
274. Gao X, Jia ZJ (2008) A new 8-O-4′-type neolignan from Ligularia narynensis. Chin Chem
Lett 19:71
275. Tori M (2016) Terpenoid composition and base sequences of Ligularia virgaurea (Asteraceae)
grown in the Hengduan mountain area in China and a comment on drawing structures. Chem
Pharm Bull 64:193
276. Tori M (2016) Diversity of plants belonging to the genus Ligularia (Asteraceae) based on
terpenoids and synthetic studies on some terpenoids. Yakugaku Zasshi 136:309
277. Bagal SK, Adlington RM, Baldwin JE, Marquez R, Cowley A (2003) Biomimetic synthesis
of biatractylolide and biepiasterolide. Org Lett 5:3049
278. Bagal SK, Adlington RM, Marquez R, Cowley A, Baldwin JE (2003) Studies towards the
biomimetic synthesis of bisesquiterpene lactones. Tetrahedron Lett 44:4993
M. Tori and C. Kuroda
254. Zhu H, Tu P (2004) A new triterpenoid saponin and two neolignans from Ligularia veitchiana. Z Naturforsch 59b:1063
255. Zhang J, Jiang W, Cao HJ, Qu Y, Liao ZX, Liu C, Sun JY (2018) Two new monoterpene lactones from Ligularia rumicifolia (J.R. Drumm.) S.W. Liu and their anti-proliferative activities. Phytochem Lett 28:55
256. Chen JJ, Li WX, Gao K, Jin XJ, Yao XJ (2012) Absolute structures of monoterpenoids with
a delta-lactone-containing skeleton from Ligularia hodgsonii. J Nat Prod 75:1184
257. Liu X, Li J, Li J, Liu Q, Xun M (2019) A new flavonoid from Ligularia fischeri. Chem Nat
Comp 55:638
258. Hussain SH, Latif A, Cox R, Simpson TJ, Ali M, Arfan M, Uddin G (2014) Phytochemicals
from the aerial parts of Ligularia thomsonii and their radical scavenging activity. Phytochem
Lett 7:6
259. Liu Q, Shen L, Wang TT, Chen CJ, Qi WY, Gao K (2010) Novel modified furanoeremophilanetype sesquiterpenes and benzofuran derivatives from Ligularia veitchiana. Food Chem 122:55
260. Ma B, Gao K, Shi YP, Jia ZJ (1997) Phenol derivatives from Ligularia intermedia.
Phytochemistry 46:915
261. Hua L, Chen J, Gao K (2012) A new pyrrolizidine alkaloid and other constituents from the
roots of Ligularia achyrotricha (Diels) Ling. Phytochem Lett 5:541
262. Zhao Y, Jia Z, Yang L (1994) Sinapyl alcohol derivatives and other constituents from
Ligularia nelumbifolia. Phytochemistry 37:1149
263. Zhao Y, Jia ZJ, Wang L, Wang JG (1993) Sinapyl alcohol derivatives and other constituents
from the roots of Ligularia nelumbifolia. Chin Chem Lett 4:895
264. Toyoda K, Yaoita Y, Kikuchi M (2005) Three new dimeric benzofuran derivatives from the
roots of Ligularia stenocephala Matsum. et Koidz. Chem Pharm Bull 53:1555
265. Jia ZJ, Zhao Y (1994) Four new furans from the roots of Ligularia przewalskii. J Nat
Prod 57:146
266. Kuroda C, Kikuchi K, Torihata A, Takeshita K, Gong X, Shen Y, Hirota H, Onuki H, Hanai
R (2007) Chemical and genetic diversity of Ligularia latihastata and Ligularia villosa in
Yunnan province of China. Chem Biodivers 4:2210
267. Murae T, Tanahashi Y, Takahashi T (1968) 5,6-Dimethoxy-2-isopropenylbenzofuran from
Ligularia stenocephala Matsum. et Koidz. Tetrahedron 24:2177
268. Yan FL, Wang AX, Jia ZJ (2004) Benzofuran derivatives from Ligularia stenocephala. J Chin
Chem Soc 51:863
269. Gao K, Wang WS, Jia ZJ (1998) Coniferyl and sinapyl alcohol derivatives from Ligularia
duciformis. Phytochemistry 47:269
270. Zhao Y, Hao X, Lu W, Cai J, Yu H, Sevénet T, Guéritte F (2002) Syntheses of two cytotoxic sinapyl alcohol derivatives and isolation of four new related compounds from Ligularia
nelumbifolia. J Nat Prod 65:902
271. Zhao Y, Peng HR, Jia ZJ (1995) Six sinapyl alcohol derivatives from Ligularia nelumbifolia.
Chin Chem Lett 6:387
272. Gao K, Jia ZJ (2000) Two new compounds from Ligularia duciformis. Indian J Chem 39B:160
273. Li YS, Wang ZT, Zhang M, Luo SD, Chen JJ (2005) A new pinoresinol-type lignan from
Ligularia kanaitzensis. Nat Prod Res 19:125
274. Gao X, Jia ZJ (2008) A new 8-O-4′-type neolignan from Ligularia narynensis. Chin Chem
Lett 19:71
275. Tori M (2016) Terpenoid composition and base sequences of Ligularia virgaurea (Asteraceae)
grown in the Hengduan mountain area in China and a comment on drawing structures. Chem
Pharm Bull 64:193
276. Tori M (2016) Diversity of plants belonging to the genus Ligularia (Asteraceae) based on
terpenoids and synthetic studies on some terpenoids. Yakugaku Zasshi 136:309
277. Bagal SK, Adlington RM, Baldwin JE, Marquez R, Cowley A (2003) Biomimetic synthesis
of biatractylolide and biepiasterolide. Org Lett 5:3049
278. Bagal SK, Adlington RM, Marquez R, Cowley A, Baldwin JE (2003) Studies towards the
biomimetic synthesis of bisesquiterpene lactones. Tetrahedron Lett 44:4993
M. Tori and C. Kuroda