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[求助]
一个信号很低的化合物微谱求助 已有1人参与
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溶剂：MeOD， 碳谱数据：14.52,14.71,15.45,16.23,16.42,22.48,22.67,24.86,25.05,25.60,26.99,27.19,30.13,32.01,32.20,36.47,38.75,39.30,41.06,41.52,46.60,51.32,51.50,55.50,61.00,75.12,75.27,89.74,94.21,94.36,105.52,122.21,143.41,169.98,176.63. 会不会是不纯，把信号很低的杂志峰算进去了？请高手帮忙，谢谢！ |
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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与，应助指数 +1
--木木: 金币+12, ★★★很有帮助 2014-11-04 20:46:44
感谢参与，应助指数 +1
--木木: 金币+12, ★★★很有帮助 2014-11-04 20:46:44
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Structures of Six New Echinocystic Acid Glycosides Isolated from the Herb Tsuneatsu NAGAO,Yukiko IWASE and Hikaru OKABE Structure 13C NMR Structure & 13C NMR 碳谱模拟图 16 . 3-O-β-D-glucopyranosyl-3β,16α-dihydroxyolean-12-en-28-oic acid-28-O-α-L-arabinopyranoside C37H60O9 相似度:64.8% Chinese Chemical Letters 1996 7 1005-1008 TWO NEW TRITERPENOID SAPONINS FROM ASTER LINGULATUS BIN HU,YU SHAO,GUO WEI QIN,CHI TANG HO,CHEE KOK CHIN AND ROBERT T,ROSEN Structure 13C NMR Structure & 13C NMR 碳谱模拟图 17 . 3-O-β-D-glucopyranosyl-echinocystic acid methyl ester 相似度:64.8% Journal of Natural Products 1995 Vol 58 837-842 Echinocystic Acid Saponins from Aster yunnanensis Yu Shao, Bing-Nan Zhou, Kan Ma, Hou-Ming Wu Structure 13C NMR Structure & 13C NMR 碳谱模拟图 18 . Coryternic acid 3-O-β‑D-glucuronopyranoside C37H56O11 相似度:64.8% Planta Medica 2011 77 1555-1558 New Triterpenoids from the Tubers of Corydalis ternata:Structural Elucidation and Bioactivity Evaluation Ki Hyun Kim, Il Kyun Lee, Sang Un Choi, Jei Hyun Lee, Eunjung Moon, Sun Yeou Kim, Kang Ro Lee Structure 13C NMR Structure & 13C NMR 碳谱模拟图 19 . oleanolic acid 3-β-O-β-glucoside 相似度:63.8% Phytochemistry 2003 1201-1205 Further saponins from Taverniera aegyptiaca Zedan Z. Ibraheim, Hashem A. Hassanean, Daoud W. Bishay Structure 13C NMR Structure & 13C NMR 碳谱模拟图 20 . 3-O-[β-D-galactopyranosyl-(1→2)-[α-L-arabinopyranosyl-(1→3)]-β-D-glucopyranosyluronic acid]-gypsogenin C24H42O17 相似度:63.8% Chemical & Pharmaceutical Bulletin 1989 37 895-900 Studies on the Constituents of Luffa operculata COGN. II. : Isolation and Structure Elucidation of Saponins in the Herb Hikaru OKABE,Tsuneatsu NAGAO,Shizuko HACHIYAMA and Tatsuo YAMAUCHI Structure 13C NMR Structure & 13C NMR 碳谱模拟图 21 . β-D-galactopyranosyl oleanolate C36H58O8 相似度:63.8% Molecules 2008 13 1472-1486 Facile Synthesis of Oleanolic Acid Monoglycosides and Diglycosides Yu Sha, Mao-Cai Yan, Jiao Liu, Yang Liu and Mao-Sheng Cheng Structure 13C NMR Structure & 13C NMR 碳谱模拟图 22 . prosapogenin C36H58O8 相似度:63.8% Journal of Asian Natural Products Research 2001 3 213-217 Eclalbatin, a Triterpene Saponin from Eclipta Alba R. K. UPADHYAY, M. B. PANDEY, R. N. JHA and V. B. PANDEY Structure 13C NMR Structure & 13C NMR 碳谱模拟图 23 . 28-O-β-D-glucopyranosyl-ester-oleanolic acid 相似度:63.8% Phytochemistry 1997 46 1267-1270 13C NMR analysis of monodesmosidic saponinis from Gomphrena macrocephala Maria Cláudia Marx Young, Adriana Potomati, Edison Paulo Chu, Mitsue Haraguchi, Massao Yamamoto, Toshie Kawano Structure 13C NMR Structure & 13C NMR 碳谱模拟图 24 . oleanolic acid-3-O-β-glucuronopyranoside 相似度:63.8% Journal of Shenyang Pharmaceutical University 2005 22 181-182 Chemical constituents of the seeds of Acanthopanax senticosus(Rupr. et Maxim) Harms ZHANG Jie, LI Wen, GAO Hui-Yuan, WU Bin, WU Li-jun Structure 13C NMR Structure & 13C NMR 碳谱模拟图 25 . soyasapogenol B-3-O-β-glc A 相似度:63.8% Natural Product Research and Development 2008 20 1005-1007 Chemical Constituents from the Aerial Part of Medicago sativa L. 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I. : The Structures of Dubiosides A, B and C, the Quillaic Acid Glucuronide Saponins Isolated from the Tuber Tsuneatsu NAGAO,Hikaru OKABE,Kunihide MIHASHI and Tatsuo YAMAUCHI Structure 13C NMR Structure & 13C NMR 碳谱模拟图 29 . 3-O-[ 6'-O-methyl-β-D-glucuronopyranosyl]oleanolic acid methyl ester 相似度:63.1% Archives of Pharmacal Research 1993 16 104-108 Triterpenoid saponins from the root barks ofAralia elata Sam Sik Kang, Ju Sun Kim, Ok Kyung Kim and Eun Bang Lee Structure 13C NMR Structure & 13C NMR 碳谱模拟图 |
2楼2014-11-04 20:09:49