主题：【悬赏帖】求助文献5篇，谢谢！

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Helvetica Chimica Acta Volume 97, Issue 4, pages 499–506, April 2014
Further Biphenyl Lignans with a Tetrahydrofuran Moiety from Gymnotheca chinensis
Shiji Xiao1,2, Dahai He1, Dongmei Fang1, Fang Chen2, Lisheng Ding1,* andYan Zhou1,*
http://onlinelibrary.wiley.com/doi/10.1002/hlca.201300208/abstract
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Phytochemistry Letters Volume 8, May 2014, Pages 38–40
Two new lignans from Gymnotheca chinensis Decne
Shi-Ji Xiaoa, b, Yuan-Zhi Laoc, Fang Chenb, Hong-Xi Xuc, Li-Sheng Dinga, , , Yan Zhoua, ,
http://www.sciencedirect.com/science/article/pii/S1874390014000226
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Tetrahedron Letters Volume 55, Issue 17, 23 April 2014, Pages 2869–2871
Two novel norlignans from Gymnotheca chinensis
Shi-Ji Xiaoa, b, Xin-Xiang Leic, Bing Xiaa, Hong-Ping Xiaoc, Da-Hai Hea, Dong-Mei Fanga, Hua-Yi Qia, Fang Chenb, Li-Sheng Dinga, , , Yan Zhoua, ,
http://www.sciencedirect.com/science/article/pii/S0040403914005127
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Biochemical Systematics and Ecology, Volume 56, October 2014, Pages 95-98
Secondary metabolites from Saururus chinensis and their chemotaxonomic significanceOriginal Research Article
Tao Zhuang, Jing-Yu Liang, Jian-Bo Sun, Yi Wu, Li-Ru Huang, Wei Qu
http://www.sciencedirect.com/science/article/pii/S0305197814001276
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Two novel polycyclic spiro lignans from Gymnotheca involucrata
Tetrahedron Letters, Volume 55, Issue 43, 22 October 2014, Pages 5949-5951
Shi-Ji Xiao, Xin-Xiang Lei, Bing Xia, Dan-Qing Xu, Hong-Ping Xiao, Hong-Xi Xu, Fang Chen, Li-Sheng Ding, Yan Zhou
http://www.sciencedirect.com/science/article/pii/S0040403914015457