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[求助]
求助一个化合物的C谱数据 谢谢了
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CDCL3 400MZ: 32.68,55.43,98.89,99.99,106.62,120.94,126.04,126.83,128.41,129.29,130.26,130.37,137.82,155.17,158.33 |
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kaola0916
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【答案】应助回帖
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感谢参与,应助指数 +1
wei537113: 金币+15, ★★★很有帮助 2012-06-14 13:37:49
感谢参与,应助指数 +1
wei537113: 金币+15, ★★★很有帮助 2012-06-14 13:37:49
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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 32.68,55.43,98.89,99.99,106.62,120.94,126.04,126.83,128.41,129.29,130.26,130.37,137.82,155.17,158.33 溶剂选项: 全部 CDCl3 CD3CD2OD CD2Cl2 C5D5N C3D7NO CD3SOCD3 C4D8O (CH3)4Si C4D8O2 CD3COOD C4D8O2 H2O D2O CF3COOD CD3OD ND3 CD3COCD3 C6D6 CD3CN 查询空值 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952个化合物(查询结果仅供参考) -------------------------------------------------------------------------------- 1 . dalparvinene B C16H16O3 相似度:87.5% Fitoterapia 2011 82 1169-1174 Cytotoxicity of chemical constituents from the stems of Dalbergia parviflora Uraiwan Songsiang, Chariya Hahnvajanawong, Chavi Yenjai Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 2 . 4-Hydroxy-2-methoxydihydrochalcone C16H16O3 相似度:66.6% Phytochemistry 1995 38 745-749 Flavonoids of dragon's blood from Dracaena cinnabari Mohamed Masaoud, Helmut Ripperger, Andrea Porzel, Günter Adam Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 3 . (Z)-4-(2-Amino-4-oxo-1H-imidazol-5(4H)-ylidene)-2-phenyl-4,5,6,7-tetrahydropyrrolo[2,3-c]azepin-8(1H)-one C17H15N5O2 相似度:66.6% Bioorganic & Medicinal Chemistry 2012 20 1475-1481 Synthesis and evaluation of debromohymenialdisine-derived Chk2 inhibitors Rahman Shah Zaib Saleem,Theresa A. Lansdell,Jetze J. Tepe Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 4 . Comound 1a 相似度:66.6% Magnetic Resonance in Chemistry 2009 47 84-86 NMR analysis of a series of substituted pyrazolo[3, 4-d] pyrimidines-4-amines (pages 84–86) Lígia M. Rodrigues, Aravind Sivasubramanian, Elisa M. Pinto, Ana M. F. Oliveira-Campos, Julio A. Seijas and M. Pilar Vázquez-Tato Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 5 . 2-[(2E)-3-(4-methoxyphenyl)-2-propen-1-yl]phenol 相似度:66.6% Bioorganic & Medicinal Chemistry 2009 17 7156-7173 Synthesis and biological evaluation of flavan-3-ol derivatives as positive modulators of GABAA receptors Kenneth N. Mewett, Sebastian P. Fernandez, Anmol K. Pasricha, Alice Pong, Steven O. Devenish, David E. Hibbs, Mary Chebib, Graham A.R. Johnston, Jane R. Hanrahan Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 6 . 2-[(E)-3-(4-methoxyphenyl)-2-propen-1-yl]-5-(phenylmethoxy)phenol 相似度:63.1% Bioorganic & Medicinal Chemistry 2009 17 7156-7173 Synthesis and biological evaluation of flavan-3-ol derivatives as positive modulators of GABAA receptors Kenneth N. Mewett, Sebastian P. Fernandez, Anmol K. Pasricha, Alice Pong, Steven O. Devenish, David E. Hibbs, Mary Chebib, Graham A.R. Johnston, Jane R. Hanrahan Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 7 . (Z)-4-(2-(Methylamino)-4-oxo-1H-imidazol-5(4H)-ylidene)-2-phenyl-4,5,6,7-tetrahydropyrrolo[2,3-c]azepin-8(1H)-one C18H17N5O2 相似度:62.5% Bioorganic & Medicinal Chemistry 2012 20 1475-1481 Synthesis and evaluation of debromohymenialdisine-derived Chk2 inhibitors Rahman Shah Zaib Saleem,Theresa A. Lansdell,Jetze J. Tepe Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 8 . 2-(3-methoxyphenyl)quinoline 相似度:62.5% Journal of Heterocyclic Chemistry 2004 41 409-411 Consecutive isomerization and cyclization of 3-(2-aminophenyl)-1-arylprop-2-yn-1-ols leading to 2-arylquinolines in the presence of potassium hydroxide Chan Sik Cho,Na Young Lee,Tae-Jeong Kim and Sang Chul Shim Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 9 . Compound 6 C19H18O3 相似度:62.5% Bioorganic & Medicinal Chemistry Letters 2007 17 461-464 Syntheses of hydroxy substituted 2-phenyl-naphthalenes as inhibitors of tyrosinase Suhee Song, Hyojin Lee, Youngeup Jin, Young Mi Ha, Sungjin Bae, Hae Young Chung, Hongsuk Suh Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 10 . cis-3,5-dimethoxyphenyl-2'-methoxyphenyl ethene 相似度:62.5% Magnetic Resonance in Chmesitry 2001 39 768-770 Complete assignment of the 1H and 13C NMR spectra of resveratrol derivatives Dongsoo Koh, Kwan Ha Park, Jihyun Jung, Heejung Yang, K.Hun Mok and Yoongho Lim Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 11 . 1-(methoxymethoxy)-2-[(E)-3-(4-methoxyphenyl)-2-propen-1-yl]benzene 相似度:62.5% Bioorganic & Medicinal Chemistry 2009 17 7156-7173 Synthesis and biological evaluation of flavan-3-ol derivatives as positive modulators of GABAA receptors Kenneth N. Mewett, Sebastian P. Fernandez, Anmol K. Pasricha, Alice Pong, Steven O. Devenish, David E. Hibbs, Mary Chebib, Graham A.R. Johnston, Jane R. Hanrahan Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 12 . Welwitschin A C18H20O4 相似度:62.5% Journal of Natural Medicines 2011 65 313-321 Chemical studies on the roots of Uvaria welwitschii Masataka Moriyasu ,Noriyoshi Nakatani ,Momoyo Ichimaru ,Yumi Nishiyama ,Atsushi Kato ,Simon G. Mathenge ,Francis D. Juma ,Patrick B. Chalo Mutiso Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 13 . 1-Cyclohexyl-3-(2-phenylquinazolin-4-yl) thiourea C21H22N4S 相似度:61.1% Molecules 2001 6 588-602 One-Pot Quinazolin-4-yl-thiourea Synthesis via N-(2-Cyanophenyl) benzimidoyl isothiocyanate W. Fathalla, M. Čajan, J. Marek and P. Pazdera Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 14 . 1-cyclohexyl-3-(2-phenylquinazolin-4-yl)thiourea C21H22N4S 相似度:61.1% Journal of Heterocyclic Chemistry 2002 39 1145-1152 Reactivity study on morpholine-1-carbothioic acid (2-phenyl-3H-quinazolin-4-ylidene) amide Walid Fathalla, Pavel Pazdera, Michal Čajan and Jaromír Marek Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 15 . 6-[5-(7-Cyanopyrazolo[1,5-a]pyrimidin-6-yl)-3,4-dimethylthieno[2,3-b]thiophen-2-yl]-2-phenylpyrazolo[1,5-a]pyrimidine-7-carbonitrile C34H20N8S2 相似度:60% Molecules 2009 14 1904-1914 Synthesis and Analysis of Some Bis-Heterocyclic Compounds Containing Sulphur Yahia Nasser Mabkhoot Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 16 . (Z)-3,5-Dimethoxystilbene C16H16O2 相似度:60% Journal of Asian Natural Products Research 2005 7 259-264 A new diterpenoid and active stilbenes from Pinus armandii heartwood YOU-XING ZHAO, LU ZHOU, LIN GUO, XIAO-DONG LUO and JUN ZHOU Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 17 . dalparvinene C17H18O4 相似度:60% Fitoterapia 2009 80 427-431 Bioactive constituents from the stems of Dalbergia parviflora Uraiwan Songsiang, Suchana Wanich, Siripit Pitchuanchom, Siwames Netsopa,Komphet Uanporn, Chavi Yenjai Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 18 . 4'-hydroxy-7-methoxy-flavan-3-ol C16H16O4 相似度:60% Phytochemistry 2000 54 891-896 Minor phenolics from Crinum bulbispermum bulbs M.A. Ramadan, M.S. Kamel, K. Ohtani, R. Kasai, K. Yamasaki Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 19 . 3-methoxy-5-hydroxystilbene (Z) 相似度:60% Phytochemistry 1998 47 1117-1123 Stilbenes, monoterpenes, diarylheptanoids, labdanes and chalcones from Alpinia katsumadai Koon-Sin Ngo, Geoffrey D. Brown Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 20 . 3-hydroxyflavone 相似度:60% Journal of Natural Products 1990 Vol 53 638 Studies on Cytotoxic Constituents in Pericarps of Mallotus japonicus, V. Three New Phloroglucinol Derivatives, Butyrylmallotochromanol, Isobutyrylmallotochromanol, and Mallotojaponol Munehisa Arisawa, Akio Fujita, Naokata Morita Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 21 . (E)-4-hydroxy-3-methoxystibene C15H16O2 相似度:60% Phytochemistry 1992 31 3801-3806 Structure-fungicidal properties of some 3- and 4-hydroxylated stilbenes and bibenzyl analogues T.P. Schultz, W.D. Boldin, T.H. Fisher, D.D. Nicholas, K.D. Mcmurtrey, K. Pobanz Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 22 . 3-Benzoxyl-6-methyl-7-methoxy-9-hydroxymethyl-phenanthren 相似度:60% Chemical Research in Chinese Universities 2008 24 445-448 Synthesis of 3-Benzyloxy-6-methyl-7-methoxyphenanthrene-9-carboxaldehyde with Utilize Intramolecular Heck Reaction as the Key Step SONG Yan-ling, ZHAI Xin, SUN Zhi-feng, KIM Sang-hee and GONG Ping Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 23 . 11H-indeno[1,2-c]-isoquinoline C16H11N 相似度:60% Helvetica Chimica Acta 1978 61 444-448 Photolysis and Pyrolysis of N-Methyl Isoindole Wolfgang Rettig and Jakob Wirz Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 24 . (E)-2-((E)-4-(4-methoxybenzyloxy)but-2-enylidene)butane-1,4-diol C16H22O4 相似度:60% Organic Letters 2006 Vol. 8, No. 21 4883-4885 Total Synthesis of (±)-Clavubicyclone Hisanaka Ito,Shunta Takeguchi, Takahiro Kawagishi, and Kazuo Iguchi Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 25 . N-(4-Methoxyphenyl)-6-phenylpyrimidin-4-amine C17H15N3O 相似度:60% Molecules 2011 16 5550-5560 An Electrochemical Synthesis of Functionalized Arylpyrimidines from 4-Amino-6-Chloropyrimidines and Aryl Halides Stéphane Sengmany, Erwan Le Gall and Eric Léonel Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 26 . 4-trifluoromethyl-6-biphenyl-2-acetylaminopyrimidine C19H14F3N3O 相似度:60% Journal of Heterocyclic Chemistry 2008 45 483-487 One-pot synthesis of N2-aminoprotected 6-substituted and cycloalka[d] 4-trifluoromethyl-2-acetylaminopyrimidines Helio G. Bonacorso,Adriana Ferla,Cleber A. Cechinel,Nilo Zanatta and Marcos A. P. Martins Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 27 . 7-acetyl-2,6-diphemyl-2H-pyrrolo[2,1-c][1,2,4]triazole C19H15N3O 相似度:60% Journal of Heterocyclic Chemistry 2007 44 393-401 A new series of non-classical type C heteropentalenes: 2H-pyrrolo[2,1-c][1,2,4]triazoles Dietrich Moderhack and Jan-Christoph Schneider Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 28 . 1-(p-chlorophenyl)-3-methylaminoisoquinoline C16H13ClN2 相似度:60% Journal of Heterocyclic Chemistry 2006 43 235-238 Convenient synthesis of N-substituted 1-alkyl and 1-aryl-3-aminoisoquinolines Alicia S. Cánepa and Rodolfo D. Bravo Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 29 . 12H-benzo[5,6]chromeno[2,3-b]pyridin-12-one C16H9NO2 相似度:60% Heterocycles 2010 81 2555-2567 Synthesis of 1-Azaxanthones and 1-Azathioxanthones by Yb(OTf)3/TfOH Co-Catalyzed Intramolecular Friedel-Crafts Reaction Jie Li, Can Jin, and Weike Su Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 30 . 2-amino-1-benzylideneamino-4-(4-methoxyphenyl)-1H-imidazole 相似度:60% Heterocycles 2009 78 691-698 Synthesis of Nitrogen-Containing Heterocycles 12. Reactions of 2-Amino-1-benzylideneamino-1H-imidazoles with Dimethyl Acetylenedicarboxylate Yoshiko Miyamoto Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 31 . 4,6-diphenyl-1H-pyrimido[4,5-d]pyridazine-2,5-(1H,6H)-dione C18H12O2N4 相似度:60% Heterocycles 2009 78 937-946 A Convenient Route to New Pyrrolo[1,2-c]pyrimidone, Thiazolo[3,4-c]pyrimidone and Pyrimido[4,5-d]pyridazine Derivatives Nabila A. Kheder, Yahia N. Mabkhot, and Ahmad M. Farag Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 32 . 1,5-diphenyl-3-(3-thienyl)pyrazole C19H14N2S 相似度:60% Heterocycles 2006 68 1209-1215 Microwave-promoted Aromatization of 1,3,5-trisubstituted 4,5-Dihydro-1H-pyrazoles by Calcium Hypochlorite under Solvent-free Conditions Davood Azarifar* and Azadeh Gharshasbi Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 33 . 4-(2'-methoxyphenyl)-1-tritylpyrazole C29H24N2O 相似度:60% Heterocycles 2006 68 2247-2252 Synthesis of 4-Arylpyrazoles via PdCl2(dppf)-Catalyzed Cross Coupling Reaction with Grignard Reagents Hayato Ichikawa,* Yuuki Ohno, Yoshihide Usami, and Masao Arimoto Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 34 . Methyl 3-(1-difluoromethyl-2-oxo-1,2-dihydropyridin-4-yl)phenylacetate 相似度:60% Bioorganic & Medicinal Chemistry Letters 2010 20 896-902 Phenylacetic acid regioisomers possessing a N-difluoromethyl-1,2-dihydropyrid-2-one pharmacophore: Evaluation as dual inhibitors of cyclooxygenases and 5-lipoxygenase with anti-inflammatory activity Gang Yu, Morshed A. Chowdhury, Khaled R.A. Abdellatif, Ying Dong, P.N. Praveen Rao, Dipankar Das, Carlos A. Velázquez, Mavanur R. Suresh, Edward E. Knaus Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 35 . 2-(1-Difluoromethyl-2-oxo-1,2-dihydropyridin-4-yl)phenylacetic acid C14H11F2NO3 相似度:60% Bioorganic & Medicinal Chemistry Letters 2010 20 896-902 Phenylacetic acid regioisomers possessing a N-difluoromethyl-1,2-dihydropyrid-2-one pharmacophore: Evaluation as dual inhibitors of cyclooxygenases and 5-lipoxygenase with anti-inflammatory activity Gang Yu, Morshed A. Chowdhury, Khaled R.A. Abdellatif, Ying Dong, P.N. Praveen Rao, Dipankar Das, Carlos A. Velázquez, Mavanur R. Suresh, Edward E. Knaus Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 36 . Comound 2a 相似度:60% Magnetic Resonance in Chemistry 2009 47 84-86 NMR analysis of a series of substituted pyrazolo[3, 4-d] pyrimidines-4-amines (pages 84–86) Lígia M. Rodrigues, Aravind Sivasubramanian, Elisa M. Pinto, Ana M. F. Oliveira-Campos, Julio A. Seijas and M. Pilar Vázquez-Tato Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 37 . Comound 2f 相似度:60% Magnetic Resonance in Chemistry 2009 47 84-86 NMR analysis of a series of substituted pyrazolo[3, 4-d] pyrimidines-4-amines (pages 84–86) Lígia M. Rodrigues, Aravind Sivasubramanian, Elisa M. Pinto, Ana M. F. Oliveira-Campos, Julio A. Seijas and M. Pilar Vázquez-Tato Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 38 . Compound 1l 相似度:60% Magnetic Resonance in Chmesitry 2003 41 549-553 1H and 13C chemical shifts for acridines: Part XVIII. 9-Chloroacridine and 9-(N-allyl)-and 9-(N-propargyl)acridinamine derivatives G. Roubaud, R. Faure and J.-P. Galy Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 39 . 4-(4-Chloro)benzylamino-6-methoxy-8-methylquinoline C18H17ClN2O 相似度:60% Pharmazie 2001 56 691-695 Synthesis and antibacterial activity of 5- and 6-hydroxy substituted 4-aminoquinolines and derivatives T. Meyer - T. Lemcke - D. Geffken - P.-M Kaulfers Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 40 . 1-(2,4-difluorophenyl)-5-(4-tolyl)imidazole 相似度:60% Archives of Pharmacal Research 2005 28 1013-1018 Synthesis and antiinflammatory activity of 1,5-Diarylimidazoles Truong Ngoc Tuyen, Kwang-Seog Sin, Hyun Pyo Kim and Haeil Park Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 41 . compound 6b C16H13NOS 相似度:60% Tetrahedron Letters 2001 42 7037-7039 Complex base-induced generation of 3,4-dehydroquinoline: a new access to quinoline derivatives Stéphanie Blanchard, Gérald Guillaumet, Paul Caubère Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 42 . 1,2-diphenyl-1-(pmethoxyphenyl)ethylene C21H18O 相似度:60% Tetrahedron Letters 2002 43 5537-5540 The [(E,E,E)-1,6,11-tris(p-toluenesulfonyl)-1,6,11-triazacyclopentadeca-3,8,13-triene]Pd(0) complex in the hydroarylation of alkynes in ionic liquids. An approach to quinolines Sandro Cacchi, Giancarlo Fabrizi, Antonella Goggiamani, Marcial Moreno-Mañas, Adelina Vallribera Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 43 . 2-Hydroxyanthracene 相似度:60% Tetrahedron Letters 2003 44 1215-1219 Stereocontrolled synthesis of anthracene β-C-ribosides: fluorescent probes for photophysical studies of DNA Robert S. Coleman, Mark A. Mortensen Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 44 . compound 6a 相似度:60% Tetrahedron Letters 2003 44 2569-2572 Solid-phase synthesis of indolines via palladium-catalyzed cyclization Yongping Yu, John M Ostresh, Richard A Houghten Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 45 . compound 3e 相似度:60% Tetrahedron Letters 2003 44 4311-4314 Palladium-catalyzed cross-coupling reaction of allyl acetates with pinacol aryl- and vinylboronates Giorgio Ortar Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 46 . compound 3c 相似度:60% Tetrahedron Letters 2003 44 5791-5794 Regio- and selective synthesis of 4,6-disubstituted-2-pyridones Khalil Cherry, Mohamed Abarbri, Jean-Luc Parrain, Alain Duchêne Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 47 . compound cis-10 相似度:60% Tetrahedron Letters 2005 46 4719-4722 A novel approach to functionalized (E)-1,4-diaryl-1-butenes by Heck reaction and their applications for the construction of dibenzylbutyrolactone lignan skeletons by radical cyclization Rekha Singh, Gobind C. Singh, Sunil K. Ghosh Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 48 . 2-(1-(4-(Trifluoromethyl)phenyl)-1H-tetrazol-5-yl)quinoline C17H10F3N5 相似度:60% Tetrahedron Letters 2005 46 4851-4854 Reaction of N-fluoropyridinium fluoride with isonitriles and TMSN3: a convenient one-pot synthesis of tetrazol-5-yl pyridines Alexander S. Kiselyov Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 49 . 3-Hydroxy-7-methoxy-2-phenyl-4H-chromen-4-one 相似度:60% Archiv der Pharmazie 2000 333 226-230 Diazabicyclo[3.3.1]nonanone-type Ligands for the Opioid Receptors Ulrich Kuhl, Werner Englberger, Michael Haurand and Ulrike Holzgrabe Structure 13C NMR 碳谱模拟图 -------------------------------------------------------------------------------- 50 . (Z)-1-(3'-Azido-4'-methoxyphenyl)-2-(3'',4'',5''-trimethoxy-phenyl)ethene C18H19N3O4 相似度:60% Bioorganic & Medicinal Chemistry 2000 8 2417-2425 Synthesis and biological evaluation of aryl azide derivatives of combretastatin a-4 as molecular probes for tubulin Kevin G Pinney, Maria P Mejia, Victor M Villalobos, Brent E Rosenquist, George R Pettit, Pascal Verdier-Pinard, Ernest Hamel Structure 13C NMR 碳谱模拟图 |
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