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17.2,17.5,19.9,21.4,25.1,25.6,27.3,28.9,29.0,29.8,31.0,35.2,39.9,40.5,41.0,41.7,42.4,44.2,47.5,48.5,56.9,69.4,84.2,122.5,129.7,164.3,184.4,189.4
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xinhao7: 金币+10, ★★★★★最佳答案 2015-06-15 20:56:43
2α,3β,19α-Trihydroxy-28-norurs-12-ene
C29H48O3     相似度:75.8%
Chemical & Pharmaceutical Bulletin          2005          53(10)          1338-1341
Sesquiterpenes, Nortriterpenes and Other Constituents from Ligularia tongolensis
Yi Feng HAN,Jing PAN,Kun GAO,and Zhong Jian JIA
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图

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2 .     2α,3β,19α-trihydroxy-28-norurs-12-ene
C29H48O3     相似度:75.8%
Chemistry Letters          2005          34          892-893
Two New Nortriterpenes from Ligularia tongolensis
Yi Feng Han, Kun Gao and Zhong Jian Jia
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图

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3 .     maslinic acid
    相似度:70%
China Journal of Chinese Materia Medica          2009          34          2610-2612
Chemical constituents of roots of Boehme rianivea
XU Qiongming, CHEN Guoqing, FAN Jinying, ZHANGMengjia, LIXia, YANG Shilin, LIxiaoran
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图

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4 .     corosolic acid
C30H48O4     相似度:70%
China Journal of Chinese Materia Medica          2006          31          1875-1879
Triterpenes from herb of Potentilla chinesis
LIU Pu, DUAN Hongquan, PAN Qin, ZHANG Yanwen, YAO Zhi
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图

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5 .     2α,3β,19α-trihydroxy-olean-12-en-17-oic acid
C30H48O5     相似度:70%
Indian Journal of Chemistry Section B          1999          38B          521-524
Two new O-β-D-glycosides from the stem bark of Cassia javanica
Rashmi Sanghi, Rahul Singh & J Singh
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图

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6 .     2α-hydroxy-oleanolic acid
    相似度:70%
China Journal of Chinese Materia Medica          2015          40          679−685
Chemical constituents of Osmanthus fragrans
YIN Wei, SONG Zu-rong, LIU Jin-qi, ZHANG Guo-sheng
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图

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7 .     maslinic acid
    相似度:70%
Chinese Joumal of Experimental Traditional Medical Fomulae          2011          17          114-117
Studies on Chemical Constituents of Grewia biloba Ⅱ
LIU Jian-qun, PAN Jing-hang, ZHANG Rui, SHU Ji-cheng, LIU Hong-ning
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图

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8 .     2α-hydroxy-oleanolic acid
C30H48O4     相似度:68.9%
China Pharmacy          2011          22          2931-2933
Chemical Constituents of Ligustrum lucidum
ZHANG Ting-fang, DAI Yi, YAO Xin-sheng
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图

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9 .     (2α,3α,12α,17R)-12-methoxy-19(18→17)-abeo-28-norolean-13(18)-ene-2,3,23,24-tetrol
C30H50O5     相似度:67.8%
Helvetica Chimica Acta          2007          Vol. 90          601
Four New Nortriterpenoids from Phlomis umbrosa
Pu Liu, Zhi Yao, Hui-Qiang Li, and Hong-Quan Duan
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图
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