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ly_tryh铁杆木虫 (著名写手)
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[求助]
解谱求助（只有碳谱），谢谢了。 已有2人参与
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像是不饱和脂肪酸甘油酯，但是查文献和常见的哪几种（油酸、亚油酸、棕榈酸等）数据对不上，感觉像是有杂质（不知道杂质是不是三萜，16.2,16.4,17.9,18.0,18.2,19.3,19.3,21.2,23.3,23.8,26.0,27.8,31.0,31.5,32.1,36.6,37.9,38.0,38.3,40.6,42.1,42.4,45.3,53.3,55.0,60.7等，有的标图上了），但是判断不清那些是有用的。 特别是比较迷惑的116.5的信号。还有就是为什么羰基信号那么低？ 没有思路啊，急求各位解谱高手帮忙啊。  Document 1_副本.jpg |
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ly_tryh: 金币+5, ★有帮助, 谢谢，不过想解的是主要物质。 2014-08-11 08:41:33
ly_tryh: 金币+5, ★有帮助, 谢谢，不过想解的是主要物质。 2014-08-11 08:41:33
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Schilling, David G.I. Kingston Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 15 . 3??-hydroxy-urs-11-en-13??(28)-olide C30H46O3 ?????:76.6% Chinese Traditional and Herbal Drugs 2012 43 444-447 Chemical constituents from leaves of Ilex cornuta ZHOU Si-xiang; YAO Zhi-rong; LI Jun; TU Peng-fei Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 16 . 3??-hydroxyurs-28,13-olide ?????:73.3% Chemical & Pharmaceutical Bulletin 1983 31 1567-1571 Triterpenoids of the Bark of Pieris japonica D. DON (Japanese Name : Asebi). 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Choudhary Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 22 . 3??-hydroxy-urs-11-en-28,13??-olide ?????:73.3% Chemistry of Natural Compounds 2013 49 381-382 Phytochemical constituents of Comastoma pedunculatum Li Tang, Xiao-Ming Xu, Ying Liu, Yi-Run Wang, Chun-Lin Long, Jin-Chao Feng Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 23 . 3??-hydroxyurs-11??,12??-epoxy-13??,28-olide ?????:73.3% The Chinese Pharmaceutical Journal 2000 52 69-77 Constituents of the Leaves of Erythrina arborescens ?S???(Keh-Feng Huang), ?????(Ping-Chuan Tseng), ????O(Ling-Ping Wu), ??????(Shiow-Ling Liou) Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 24 . 3??,13??-dihydroxyurs-11-en-28-oic acid ?????:73.3% Molecules 2014 19 9515-9534 Studies on Cytotoxic Constituents from the Leaves of Elaeagnus oldhamii Maxim. in Non-Small Cell Lung Cancer A549 Cells Chi-Ren Liao, Yueh-Hsiung Kuo, Yu-Ling Ho, Ching-Ying Wang, Chang -Syun Yang, Cheng-Wen Lin and Yuan-Shiun Chang Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 25 . 3??-Hydroxyurs-11-en-13??(28)-olide ?????:73.0% Phytochemical Analysis 2005 16 364-369 Chemical composition of the epicuticular wax from the fruits of Eucalyptus globulus Susana I. 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(3??,18??,20??)-3-acetoxy-N-hydroxy-11-oxo-olean-12-en-29-amide ?????:70.9% Bioorganic & Medicinal Chemistry 2010 18 7522-7541 Synthesis of novel 3-amino and 29-hydroxamic acid derivatives of glycyrrhetinic acid as selective 11??-hydroxysteroid dehydrogenase 2 inhibitors Christian Stanetty, Laszlo Czollner, Iris Koller, Priti Shah, Rawindra Gaware, Thierry Da Cunha, Alex Odermatt, Ulrich Jordis, Paul Kosma, Dirk Claßen-Houben Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 30 . uvaol ?????:70.3% Modern Chinese Medicine 2011 13(1) 23-25 Isolation and Identification of Chemical Constituents from RosmarinusOfficinalis L1 WANG Hui, , GAO Hui-yuan, ZHANG Zhen-qiu, WULi-jun Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 31 . 3-acetoxy oleanolic acid ?????:70.3% Journal of Shenyang Pharmaceutical University 2011 28 417-419 Isolation and identification of chemical constituents from stems of Stauntonia brachyanthera Hand. - Mazz. 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Bazzocchi,Jan West Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 37 . 2??,3??-dihydroxy-11??,12??-epoxy-urs-28,13??-olide C30H46O5 ?????:70% Journal of Asian Natural Products Research 2013 15 962-968 Three new ursane-type triterpenoids from the aerial parts of Isodon excisoides Ke Jiao, Huo-Yun Li, Peng Zhang, Hui-Fang Pi, Han-Li Ruan & Ji-Zhou Wu Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 38 . ferna-9(11)-en-19a-ol ?????:70% Natural Medicines 1998 52 409-413 Pharmacognostical Studies on "Ku-tui-po" III. : Constituents of the Rhizomes of Davallia solida Tanaka Yasuko,Kitajima Jun-ichi,Ageta Hiroyuki Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 39 . ilelatifol D ?????:70% Natural Medicines 2000 54 297-305 Acyl-CoA : Cholesterol Acyltransferase(ACAT) Inhibitors from Ilex spp. Nishimura Keiichi,Miyase Toshio,Noguchi Hiroshi,Chen Xin-Min Structure 13C NMR Structure & 13C NMR ??????? -------------------------------------------------------------------------------- 40 . 13??-???-11-?-????? ?????:70% 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 Structure & 13C NMR ??????? |
2楼2014-08-08 21:29:48
ly_tryh
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3楼2014-08-13 12:24:51
知識無價
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4楼2014-08-14 17:29:14