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[求助]
求助化合物微谱搜索
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求助几个个化合物的微谱查询，碳谱数据如下： 化合物1: 30.7,54.8,56.4,56.8,64.6,89.8,110.5,113.6,116.2,119.0,119.8,129.9,130.9,134.1,145.8,147.7,149.2,151.8 化合物2： 56.5,56.6,62.2,62.3,62.6,62.7,106.9,110.2,112.8,115.4,121.3,124.8,139.6,145.6,149.2,149.4,150.9,153.4,154.0,163.7,179.7 化合物3： 26.5,29.3,30.8,32.3,37.0,49.6,49.7,49.9,64.4,72.4,101.1, 119.9,200.9,211.6 化合物4： 31.1,34.0,53.6,54.5,54.9,60.4,63.1,87.1,108.6,112.2,114.3,116.1,117.8,128.0,132.9,135.1,143.3,145.6,145.6,147.2 溶剂为甲醇，请各位帮忙了！ |
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wangkaibo123
荣誉版主 (职业作家)
kerry
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专家经验: +726 - PhEPI: 3
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【答案】应助回帖
★
感谢参与，应助指数 +1
PSA: 金币+1, 3u 2013-08-30 15:04:29
感谢参与，应助指数 +1
PSA: 金币+1, 3u 2013-08-30 15:04:29
|
1 查询模式：模糊查询 碳谱数据输入： 按从小到大顺序输入，数字间用英文半角逗号(,)分隔例如： 21.4,30.4,37.4,73.2,73.7,125.6,126.6,139.6,140.2,168.2 溶剂选项： 匹配容差： (数字格式，可自行设定) 相似度： %(相似度>=50%) 查询结果：共查到1172个化合物(查询结果仅供参考) 1 . balanophonin C20H20O6 相似度:85% Chemistry of Natural Compounds 2009 45 536-538 CHEMICAL CONSTITUENTS FROMTHE STEM BARK OF Trewia nudiflora Shao-Hua Wu, Yue-Mao Shen, You-Wei Chen, Zhi-Ying Li, Li-Yuan Yang, and Shao-Lan Li Structure 13C NMR 碳谱模拟图 2 . 2,3-dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-hydroxymethyl-7-methoxybenzofuran-5-(trans)propenicacid C20H20O7 相似度:85% Phytochemistry 1996 43 1349-1354 Dihydrobenzofuran lignans from Boreava orientalis Akiyo Sakushima, Maksut Cokun, Takashi Maoka, Sansei Nishibe Structure 13C NMR 碳谱模拟图 3 . cimicifugic acid C20H20O7 相似度:85% Acta Pharmaceutica Sinica 2002 Vol 37 535-538 STUDIES ON THE PHENOLIC ACID CONSTITUENTS FROM CHINESE MEDICINE “SHENG-MA”,RHIZOME OF CIMICIFUGA FOETIDA L. ZHAO Xiao-hong; CHEN Di-hua; SI Jian-yong; PAN Rui-le; SHEN Lian-gang Structure 13C NMR 碳谱模拟图 4 . glycosmisic acid 相似度:85% Chinese Traditional and Herbal Drugs 2010 41 509-514 A new lignan from Gardenia jasminoides YU Yang; GAO Hao; DAI Yi; LI Xiao-xia; LI Jia-ming; YAO Xin-sheng Structure 13C NMR 碳谱模拟图 5 . balanophonin 相似度:85% Journal of the Chinese Chemical Society 2003 50 1271-1274 Neolignans from the Parasitic Plants. Part 1. Aeginetia indica Jiau-Ching Ho, Chiu-Ming Chen and Lie-Ching Row Structure 13C NMR 碳谱模拟图 6 . avellanedae A C20H20O7 相似度:85% Fitoterapia 2012 83 1484-1488 Anti-inflammatory constituents from Tabebuia avellanedae Maorong Suo, Hasegawa Isao, Hikaru Kato, Fumihide Takano, Tomihisa Ohta Structure 13C NMR 碳谱模拟图 7 . 山橘脂酸 相似度:85% Chinese Pharmaceutical Journal 2012 47 1029-1031 Study on Chemical Constituents of Alocasia macrorrhiza(L.) Schott ZHU Ling-hua; HUANG Xiao-sheng; YE Wen-cai; ZHOU Guang-xiong Structure 13C NMR 碳谱模拟图 8 . rel-(7R,7'E,8S)-4,9-Dihydroxy-3,3',5-trimethoxy-4',7-epoxy-8,5'-neolign-7'-en-9'-oic Acid C21H22O8 相似度:83.3% Helvetica Chimica Acta 2010 93 2467-2477 Neolignans and Caffeoyl Derivatives from Selaginella moellendorffii Yue-Hu Wang, Qian-Yun Sun, Fu-Mei Yang, Chun-Lin Long, Fu-Wei Zhao, Gui-Hua Tang, Hong-Mei Niu, Huan Wang, Qiao-Qin Huang, Jin-Jin Xu and Li-Juan Ma Structure 13C NMR 碳谱模拟图 9 . diospyrosin C20H18O5 相似度:80% Chemistry & Biodiversity 2008 Vol. 5 2442 Study of Antimalarial Activity of Chemical Constituents from Diospyros quaesita Cui-Ying Ma, Sebisubi Fred Musoke, Ghee Teng Tan, Kongmany Sydara, Somsanith Bouamanivong, Bounhoong Southavong, D. Doel Soejarto, Harry H. S. Fong, and Hong-Jie Zhang Structure 13C NMR 碳谱模拟图 10 . balanophonin 相似度:80% Chinese Traditional and Herbal Drugs 2010 41 509-514 A new lignan from Gardenia jasminoides YU Yang; GAO Hao; DAI Yi; LI Xiao-xia; LI Jia-ming; YAO Xin-sheng Structure 13C NMR 碳谱模拟图 |
2楼2013-08-29 22:10:11
wangkaibo123
荣誉版主 (职业作家)
kerry
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专家经验: +726 - PhEPI: 3
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【答案】应助回帖
★
PSA: 金币+1, 3u 2013-08-30 15:04:38
PSA: 金币+1, 3u 2013-08-30 15:04:38
|
2 查询模式：模糊查询 碳谱数据输入： 按从小到大顺序输入，数字间用英文半角逗号(,)分隔例如： 21.4,30.4,37.4,73.2,73.7,125.6,126.6,139.6,140.2,168.2 溶剂选项： 匹配容差： (数字格式，可自行设定) 相似度： %(相似度>=50%) 查询结果：共查到268个化合物(查询结果仅供参考) 1 . nobiletin C9H12O2 相似度:90.4% Molecules 2013 18 4766-4775 Chemical Constituents of the Root of Jasminum giraldii Zhenggang Yue, Hui Qin, Yuhua Li, Yang Sun, Zhipeng Wang, Tiehong Yang, Li Liu, Minchang Wang, Feng Feng and Qibing Mei Structure 13C NMR 碳谱模拟图 2 . nobiletin 相似度:80.9% Acta Botanica Sinica 1996 38 161-166 Chemical Constituents from Roots of Jatropha curcas Kong Ling-yi, Min Zhi-da and Shi Jian-xia Structure 13C NMR 碳谱模拟图 3 . Nobiletin 相似度:76.1% Lishizhen Medicine and Materia Medica Research 2010 21 2469-2470 Study on the Compounds of Polymethoxylated Flavonoids in Fructus Aurantii Immaturus HAN Jin-dan; WANG Kui-wu; SHEN Lian-qing Structure 13C NMR 碳谱模拟图 4 . 3,5,6,7,8,3',4'-Heptamethoxyflavone 相似度:72.7% Journal of Chinese Pharmaceutical Sciences 2006 15 15-20 Flavanoids from Clematis hexapetala DONG Cai-xia; WU Ke-si; SHI She-po; and TU Peng-fei Structure 13C NMR 碳谱模拟图 5 . 5,3'-dihydroxy-3,6,7,8,4'-pentamethoxyflavone 相似度:71.4% Journal of Natural Products 1994 Vol 57 1012 Antimitotic and Cytotoxic Flavonols from Zieridium pseudobtusifolium and Acronychia porteri Johannes J. Lichius, Odile Thoison, Alain Montagnac, Mary Païs, Françoise Guéritte-Voegelein, Thierry Sévenet, Jean-Pierre Cosson, Abdul Hamid A. Hadi Structure 13C NMR 碳谱模拟图 6 . isoimerubrine 相似度:66.6% Chemical & Pharmaceutical Bulletin 1993 41 1418-1422 Structures and Solid State Tautomeric Forms of Two Novel Antileukemic Tropoloisoquinoline Alkaloids, Pareirubrines A and B, from Cissampelos pareira Hiroshi MORITA,Kouji MATSUMOTO,Koichi TAKEYA,Hideji ITOKAWA and Yoichi IITAKA Structure 13C NMR 碳谱模拟图 7 . 5,3'-dihydroxy-3,6,7,8,4'-pentamethoxyflavone C20H20O9 相似度:66.6% Journal of Natural Products 1995 Vol 58 475-482 Antitumor Agents, 154. Cytotoxic and Antimitotic Flavonols from Polanisia dodecandra Qian Shi, Ke Chen, Leping Li, Jer-Jang Chang, Cari Autry, Mutsuo Kozuka, Takao Konoshima, James R. Estes, Chii M. Lin, Ernest Hamel, Andrew T. McPhail, Donald R. McPhail, Kao-Hsiung Lee Structure 13C NMR 碳谱模拟图 8 . 3'-Formyl-5-hydroxy-3,6,7,8,4'-pentamethoxy-flavone C21H20O9 相似度:66.6% Bioorganic & Medicinal Chemistry 2011 19 186-196 Synthesis of antiproliferative flavones from calycopterin, major flavonoid of Calycopteris floribunda Lamk. Guy Lewin, Narayan Bhat Shridhar, Geneviève Aubert, Sylviane Thoret, Joëlle Dubois,Thierry Cresteil Structure 13C NMR 碳谱模拟图 9 . 3'-demethylnobiletin C20H20O8 相似度:66.6% Bioorganic & Medicinal Chemistry Letters 2011 21 4540-4544 Nobiletin metabolites: Synthesis and inhibitory activity against matrix metalloproteinase-9 production Tetsuta Oshitari, Yuji Okuyama, Yoshiki Miyata, Hiroshi Kosano, Hideyo Takahashi, Hideaki Natsugari Structure 13C NMR 碳谱模拟图 10 . 3-(3',4'-dimethoxyphenyl)-5,6,7-trimethoxychromen-4-one C20H20O7 相似度:66.6% Natural Product Research and Development 2010 22 956-960 Synthesis of the Natural Product 5,6,7,3 ,4 -Pentamethoxyisoflavone REN Wan-li; CHEN Rui; JIN Ye; ZHANG Tao; LI Hong-qi Structure 13C NMR 碳谱模拟图 11 . 3-hydroxy-5,6,7,8,3',4'-hexamethoxyflavone 相似度:66.6% Journal of the Chinese Chemical Society 1998 45 89-91 Isolation and Characterization of an Antibacterial Substance from Citrus Plant Chihiro Ito;Kazuko Fujiwara;Meisaku Koizumi;Hiroshi Furukawa Structure 13C NMR 碳谱模拟图 12 . 5-hydroxy-3,6,7,8,3',4'-hexamethoxyflavone 相似度:66.6% Food Chemistry 2011 127 394-403 Chemical composition and biological activity of Citrus jambhiri Lush Dalia Hamdan, Mahmoud Zaki El-Readi, Ahmad Tahrani, Florian Herrmann, Dorothea Kaufmann, Nawal Farrag, Assem El-Shazly, Michael Wink Structure 13C NMR 碳谱模拟图 13 . casticin 相似度:66.6% Phytotherapy Research 2007 21 391-394 Diterpenoids and flavonoids from the fruits of Vitex agnus-castus and antioxidant activity of the fruit extracts and their constituents Zsuzsanna Hajdú, Judit Hohmann, Peter Forgo, Tamás Martinek, Máté Dervarics, István Zupkó, György Falkay, Daniel Cossuta and Imre Máthé Structure 13C NMR 碳谱模拟图 14 . 3',4,4',5,6-Pentamethoxyaurone C20H20O7 相似度:66.6% Journal of Agricultural and Food Chemistry 2007 55 700-705 Synthesis and Insect Antifeedant Activity of Aurones against Spodoptera litura Larvae Masanori Morimoto, Hiromi Fukumoto, Toki Nozoe, Ai Hagiwara, and Koichiro Komai Structure 13C NMR 碳谱模拟图 15 . 5-Hydroxy-6,7,8,3',4'-pentamethoxyflavone 相似度:66.6% Journal of Agricultural and Food Chemistry 1997 45 364-368 Two New Polymethoxylated Flavones, a Class of Compounds with Potential Anticancer Activity, Isolated from Cold Pressed Dancy Tangerine Peel Oil Solids Jie Chen, Antonio M. Montanari, and Wilbur W. Widmer Structure 13C NMR 碳谱模拟图 |
3楼2013-08-29 22:13:51
4楼2013-08-30 05:55:07
wangkaibo123
荣誉版主 (职业作家)
kerry
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专家经验: +726 - PhEPI: 3
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5楼2013-08-30 14:31:28
6楼2013-08-30 18:43:47
wangkaibo123
荣誉版主 (职业作家)
kerry
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专家经验: +726 - PhEPI: 3
- 应助: 1928 (讲师)
- 贵宾: 0.598
- 金币: 7869.1
- 散金: 10156
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【答案】应助回帖
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3 查询模式：模糊查询 碳谱数据输入： 按从小到大顺序输入，数字间用英文半角逗号(,)分隔例如： 21.4,30.4,37.4,73.2,73.7,125.6,126.6,139.6,140.2,168.2 溶剂选项： 匹配容差： (数字格式，可自行设定) 相似度： %(相似度>=50%) 查询结果：共查到48个化合物(查询结果仅供参考) 1 . grasshopper ketone 相似度:92.8% Archives of Pharmacal Research 2008 31 1094-1097 Chemical constituents from the flower of Datura metel L. Hai-xue Kuang, Bing-you Yang, Yong-gang Xia and Wei-sheng Feng Structure 13C NMR 碳谱模拟图 2 . grasshopper ketone C13H20O3 相似度:92.8% Chemistry of Natural Compounds 2013 49 340-342 Chemical constituents of Euonymus alatus Zhao-hui Yan, Zhu-zhen Han, Xian-qing Hu, Qing-xin Liu, Wei-dong Zhang, Run-hui Liu, Hui-liang Li Structure 13C NMR 碳谱模拟图 3 . (3S,5R,8R)-3,5-dihydroxymegastigma-6,7-dien-9-one 相似度:92.8% Archives of Pharmacal Research 2011 34 533-542 Isolation of megastigmane sesquiterpenes from the silkworm (Bombyx mori L.) droppings and their promotion activity on HO-1 and SIRT1 Ji-Hae Park, Do-Gyeong Lee, Seung-Woo Yeon, Hyuk-Sang Kwon and Jong-Hee Ko, et al. Structure 13C NMR 碳谱模拟图 4 . 3S,5R-dihydroxy-6R,7-megstigmadien-9-one C13H20O3 相似度:92.8% Chinese Journal of Natural Medicines 2011 9 115-119 Chemical Constituents of Toona ciliata var. pubescens LIU Yu-Bo, CHENG Xiang-Rong, QIN Jiang-Jiang, YAN Shi-Kai, JIN Hui-Zi *, ZHANG Wei-Dong Structure 13C NMR 碳谱模拟图 5 . grasshopper ketone C13H20O3 相似度:78.5% Natural Product Sciences 2007 13 365-368 Apocarotenoids from an Association of Two Marine Sponges Shinde, Pramod B.; Kim, Mi-Ae; Son, Byeng-Wha; Lee, Chong-O.; Jung, Jee-H. Structure 13C NMR 碳谱模拟图 6 . compound 5 相似度:71.4% Journal of Natural Products 2004 67 1492-1495 Isolation and Phytotoxicity of Apocarotenoids from Chenopodium album Marina DellaGreca, Cinzia Di Marino, Armando Zarrelli, and Brigida D'Abrosca Structure 13C NMR 碳谱模拟图 7 . compound 5a 相似度:71.4% Chemical & Pharmaceutical Bulletin 1987 35 1109-1117 Studies on the Glycosides of Epimedium grandiflorum MORR. Var. thunbergianum (MIQ.) NAKAI. I TOSHIO MIYASE,AKIRA UENO,NOBUO TAKIZAWA,HIROMI KOBAYASHI and HIROKO KARASAWA Structure 13C NMR 碳谱模拟图 8 . apo-9'-fucoxanthinone C15H22O4 相似度:71.4% Natural Product Sciences 2007 13 365-368 Apocarotenoids from an Association of Two Marine Sponges Shinde, Pramod B.; Kim, Mi-Ae; Son, Byeng-Wha; Lee, Chong-O.; Jung, Jee-H. Structure 13C NMR 碳谱模拟图 9 . Grasshopper ketone 相似度:71.4% Journal of Asian Natural Products Research 2012 14 503-507 Grasshopper ketone 3-O-primveroside from Sinocrassula indica Hai-Hui Xie and Masayuki Yoshikawa Structure 13C NMR 碳谱模拟图 10 . compound Ⅶ C13H20O3 相似度:71.4% Tetrahedron 1988 44 4703-4711 Structures of potent antiulcerogenic compounds from cinnamomum cassia Yusei Shiraga, Kanemichi Okano, Toshiaki Akira, Chikara Fukaya, Kazumasa Yokoyama, Shigeo Tanaka, Hiroshi Fukui, Mamoru Tabata Structure 13C NMR 碳谱模拟图 11 . grasshopper ketone 相似度:71.4% Chinese Traditional and Herbal Drugs 2013 44 272-276 Chemical constituents in Amaranthus spinosus LI Jie, CHEN Quan-cheng, LIN Ting, XU Yang, HUANG Xue-min, ZOU Xiu-hong, CHEN Hai-feng Structure 13C NMR 碳谱模拟图 12 . grasshopper ketone 相似度:71.4% Journal of Shenyang Pharmaceutical University 2012 29 337-339 Isolation and identification of chemical constituents from leaves of Gynura procumbens(Lour.)Merr. ZHANG Ying; JIANG Kun; YANG Li-jun; TAN Jun-jie; MENG Da-li; TAN Chang-heng Structure 13C NMR 碳谱模拟图 13 . compound A C15H22O3 相似度:66.6% Tetrahedron Letters 2001 42 7307-7310 Novel synthesis of the allene moiety of carotenoids via biomimetic photosensitized oxygenation Masayuki Nakano, Noriyuki Furuichi, Hajime Mori, Shigeo Katsumura Structure 13C NMR 碳谱模拟图 14 . 5-Acetyloxy-3,9a-dihydroxy-9a-homomegastigma-6,7- dien-9-one C16H24O5 相似度:62.5% Phytochemistry 1993 34 733-736 Norisoprenoids from Centaurea aspera and C. salmantica Isabel Fernández, José R. Pedro, Rita Vidal Structure 13C NMR 碳谱模拟图 15 . Staphylionoside D C19H30O8 相似度:57.8% Chemistry of Natural Compounds 2011 47 122-123 Chemical constituents of Litsea szemaois Yun-Song Wang, Rong Huang and Jing-Hua Yang Structure 13C NMR 碳谱模拟图 |
7楼2013-08-30 19:14:25
wangkaibo123
荣誉版主 (职业作家)
kerry
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专家经验: +726 - PhEPI: 3
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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
alsjione: 金币+30, ★★★★★最佳答案 2013-08-30 19:30:49
alsjione: 金币+30, ★★★★★最佳答案 2013-08-30 19:30:49
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????????????? ??????????? ????С??????????????????????????(,)??????磺 21.4,30.4,37.4,73.2,73.7,125.6,126.6,139.6,140.2,168.2 ?????? ?????? (???????????????趨) ?????? %(?????>=50%) ???????????鵽486????????(???????????ο?) 1 . dihydrodehydrodiconifenyl alcohol ?????:100% Journal of Asian Natural Products Research 2008 10 499-502 One new dihydrobenzofuran lignan from Vitex trifolia Qiong Gu, Xue-Mei Zhang, Jun Zhou, Sheng-Xiang Qiu and Ji-Jun Chen Structure 13C NMR ??????? 2 . (7S,8R)-Dihydrodehydrodiconiferyl alcohol ?????:100% Archives of Pharmacal Research 2011 Vol 34, No 8 1289-1296 Phenolic Constituents of Acorus gramineus Cheol Hyeong Park, Ki Hyun Kim, Il Kyun Lee, Seung Young Lee, Sang Un Choi, Jei Hyun Lee, and Kang Ro Lee Structure 13C NMR ??????? 3 . dihydrodehydrodiconifery alcohol C20H24O6 ?????:100% Chinese Traditional and Herbal Drugs 2005 36 1142-1144 ????????????????о? Ф??,???,??????,?????,????,???? Structure 13C NMR ??????? 4 . 4-O-???????? ?????:95% Natural Product Research and Development 2013 25 345-348 Studies on the Chemical Constituents from Sambucus adnata Wall WU Hai-bo, ZHAO Yi-ning, LI Dong-mei, LV Xiang-wen, WANG Wen-shu Structure 13C NMR ??????? 5 . lawsonicin C20H24O6 ?????:90% Helvetica Chimica Acta 2003 Vol. 86 2164 Two New and a Known Compound from Lawsonia inermis Bina S. Siddiqui, M. Nadeem Kardar, S. Tariq Ali, and Shazia Khan Structure 13C NMR ??????? 6 . 3-O-demethyldihydrodehydrodiconiferyl alcohol ?????:90% Journal of the Chinese Chemical Society 1999 46 811-818 Lignans, Flavonoids and Phenolic Derivatives from Taxus mairei ????(Shung-Jim Yang);??????(Jim-Min Fang);?????(Yu-Shia Cheng) Structure 13C NMR ??????? 7 . (7R,8S)-3,5'-dimethoxy-4',7-epoxy-8,3'-neolignane-5,9,9'-triol C20H24O6 ?????:90% Fitoterapia 2012 83 883-887 Phenolics from Leontopodium leontopodioides inhibiting nitric oxide production Xin Li, Jian-Guang Luo, Xiao-Bing Wang, Jun Luo, Jun-Song Wang, Ling-Yi Kong Structure 13C NMR ??????? 8 . dihydrodehydrodiconiferyalcohol C20H24O6 ?????:90% Journal of Chinese Medicinal Materials 2008 31 985-987 Studies on the Chemical Constituents of Litsea lancifolia YANG Shu, LI Lai-wei, YANG Xiao-dong, ZHAO Jing-feng, Li LiIang Structure 13C NMR ??????? 9 . 4-???-3,5'-????????-4',7-????-8,3'-??????-9,9'-???? ?????:90% China Journal of Chinese Materia Medica 2013 38 1004-1007 Chemical constituents from Litsea greenmaniana JIANG Ming, LIN Sheng, GUO Qing-lan, JIANG Zhi-bo, WANG Su-juan, YANG Yong-chun, LIN Peng-cheng Structure 13C NMR ??????? 10 . 4-O-metbylcedrusin ?????:90% Chinese Traditional and Herbal Drugs 2013 44 1397-1399 Chemical constituents from flower buds of She Medicine Magnolia liliflora LIU Ting-ting, WU Hai-bo, WANG Wen-shu, LAN Xiao-cong Structure 13C NMR ??????? 11 . compound 2 ?????:85% Acta Pharmaceutica Sinica 2002 Vol 37 626-629 ISOLATION AND STRUCTURE IDENTIFICATION OF LIGAN GLYCOSIDES FROM PINE NEEDLES OF PINUS MASSONIANA LAMB BI Yue feng; ZHENG Xiao ke; FENG Wei sheng; ZHANG Yong zhong; JI Chun ru Structure 13C NMR ??????? 12 . dihydrodehydrodiconifery alcohol ?????:85% Natural Product Research and Development 2010 22 945-948 Lignans from the Stem of Schima superba XU Wen; ZHOU Guang-xiong; YAO Xin-sheng Structure 13C NMR ??????? 13 . (+)-dihdyrodehydrodiconiferyl alcohol ?????:85% Natural Product Research and Development 2008 20 257-261 Chemical Constituents of Keteleeria evelyniana FU Zhao-hui;ZHANG Yu-mei; TAN Ning-hua; CHU Hong-biao; JI Chang-jiu; Structure 13C NMR ??????? 14 . dihydrodehydrodiconiferyl alcohol ?????:85% Journal of the Chinese Chemical Society 1998 45 773-778 The Constituents from the Leaves of Magnolia coco ???a??(Hsi-Jung Yu);?????(Chien-Chih Chen);?x???M(Bor-Jinn Shieh) Structure 13C NMR ??????? |
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