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fengfajin

新虫 (小有名气)

[求助] 急求微谱,最后2个了,谢谢帮忙 已有1人参与

因为你们的帮助,我的论文才得以完成,在此谢过帮忙的虫友们,因为今天只有一次该板块发帖的机会了,在此一并求助最后2个化合物,多加10个金币答谢

化合物fj32
13 NMR(CDCl3, 100MHz)
碳谱数据如下:
16.97,17.25,17.90,18.59,21.34,23.08,23.42,23.85,28.85,31.40,31.76,32.51,33.58,37.93,38.52,38.53,39.34,39.57,40.19,43.16,46.92,47.89,53.31,55.55,69.24,84.24,123.36,141.20

化合物fj25a
13 NMR(C5D5N, 100MHz)
碳谱数据如下:
17.98,18.39,18.59,19.30,21.71,22.65,24.89,25.96,28.23,29.74,32.77,33.40,34.10,35.87,36.93,37.87,39.33,40.29,42.01,42.32,45.28,48.61,49.28,51.66,56.48,69.28,84.33,129.82,138.26,179.42
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seuseasoar

至尊木虫 (知名作家)

【答案】应助回帖

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fengfajin: 金币+15, ★★★★★最佳答案, 太完美了这个,等了许久,哈哈 2015-05-07 17:49:16
22222

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Medicinal Foodstuffs. XXVI. Inhibitors of Aldose Reductase and New Triterpene and Its Oligoglycoside, Centellasapogenol A and Centellasaponin A, from Centella asiatica (Gotu Kola)
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    相似度:76.6%
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4 .     3α-hydroxyolean-11-en-28,13β-olide
C30H47O3     相似度:76.6%
Journal of Natural Products          2000          63          1611-1614
Oleanane Triterpenes from Junellia tridens
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Structure      13C NMR    Structure & 13C NMR     碳谱模拟图
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Fern Constituents : Triterpenoids Isolated from Leaflets of Cyathea spinulosa
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6 .     2α-hydroxybetulinic acid
    相似度:76.6%
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7 .     2α-hydroxy betulinic acid
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Chinese Journal of Natural Medicines          2003          1          82-84
Chemical Constituents of Chaenomeles sinensis(Thouin)Koehne
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尼赫
3楼2015-05-07 11:45:13
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seuseasoar

至尊木虫 (知名作家)

【答案】应助回帖

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感谢参与,应助指数 +1
fengfajin: 金币+15, 有帮助 2015-05-07 17:49:25
1 .     2α,3β-dihydroxyursa-12-en-28-oic acid
    相似度:80%
Journal of Chinese Pharmaceutical Sciences          2000          9          128-130
A New Phenylpropanoid and Triterpenoids from Prunella vulgaris
Wang Zhuju, Zhao Yuying, Wang Bin, Li Jiexiu, Ai Tiemin and Chen Yayan
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图
2 .     1β,3β-dihydroxyurs-12-en-28-oic acid
    相似度:80%
China Journal of Chinese Materia Medica          2009          34          3047-3050
Triterpenoid constituents in fruits of Psidum guajava
SHU Jicheng, CHOU Guixin, WANG Zhengtao
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图
3 .     2α,3β-dihydroxylup-12-en-28-oic acid
    相似度:80%
Magnetic Resonance in Chemistry          2007          45          279-281
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Structure      13C NMR    Structure & 13C NMR     碳谱模拟图
4 .     2α-hydroxyursolic acid
    相似度:80%
Chinese Pharmaceutical Journal          2003          38          497-499
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GUO Hong-li, ZHOU Jin-yun
Structure      13C NMR    Structure & 13C NMR     碳谱模拟图
5 .     2α,3β-dihydroxyurs-12-en-28-oic acid
    相似度:80%
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XIAO Yan-hua;ZHANG Ai-lian; ZHANG Guo-lin
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C30H48O4     相似度:80%
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Ursolic acid: a potent Inhibitor of superoxides produced in the cellular system
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C30H48O3     相似度:80%
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    相似度:80%
Acta Pharmaceutica Sinica          2012          47          77-83
Triterpenes from Callicarpa integerrima Champ
ZHU Chen-chen; GAO Li; ZHAO Zhong-xiang; LIN Chao-zhan
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    相似度:80%
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    相似度:80%
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尼赫
2楼2015-05-07 11:43:57
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