麻烦谁帮我查下这个化合物是不是新的呢，要是有人分到过，麻烦发下这个文献名字好吗？啊
Scifinder 搜索后 是新化合物。恭喜LZ！
Jiang, Fuqiang; Zhang, Xuemei; Ma, Yunbao; Geng, Changan; Jiang, Zhiyong; Chen, Jijun.Chemical constituents of Swertia hispidicalyx. Zhongguo Zhongyao Zazhi(2011),36(16),2215-2218.CODEN: ZZZAE3ISSN:1001-5302.AN 2012:48864 CAPLUS
Tian, Luanyuan; Chen, Jiachun; Bai, Xue; Fang, Jinbo.Xanthones and iridoid glycosides from swertia punicea hemsl. Tianran Chanwu Yanjiu Yu Kaifa(2010),22(6),979-983.CODEN: TCYKE5ISSN:1001-6880.AN 2011:684865 CAPLUS
Wang, Hongling; Geng, Changan; Zhang, Xuemei; Ma, Yunbao; Jiang, Zhiyong; Chen, Jijun.Chemical constituents of Swertia macrosperma. Zhongguo Zhongyao Zazhi(2010),35(23),3161-3164.CODEN: ZZZAE3ISSN:1001-5302.AN 2011:534525 CAPLUS
以上是吡喃环的乙基变成双键的化合物文献
Scifinder 搜索后 是新化合物。恭喜LZ！
Jiang, Fuqiang; Zhang, Xuemei; Ma, Yunbao; Geng, Changan; Jiang, Zhiyong; Chen, Jijun.Chemical constituents of Swertia hispidicalyx. Zhongguo Zhongyao Zazhi(2011),36(16),2215-2218.CODEN: ZZZAE3ISSN:1001-5302.AN 2012:48864 CAPLUS
Tian, Luanyuan; Chen, Jiachun; Bai, Xue; Fang, Jinbo.Xanthones and iridoid glycosides from swertia punicea hemsl. Tianran Chanwu Yanjiu Yu Kaifa(2010),22(6),979-983.CODEN: TCYKE5ISSN:1001-6880.AN 2011:684865 CAPLUS
Wang, Hongling; Geng, Changan; Zhang, Xuemei; Ma, Yunbao; Jiang, Zhiyong; Chen, Jijun.Chemical constituents of Swertia macrosperma. Zhongguo Zhongyao Zazhi(2010),35(23),3161-3164.CODEN: ZZZAE3ISSN:1001-5302.AN 2011:534525 CAPLUS
以上是吡喃环的乙基变成双键的化合物文献