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~1H SPIN SYSTEM IdENTIFICATIONS OF S-SULFONATEd INSULIN B CHAIN WITH 2d-nmr

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Science China Chemistry 1989年第8期32卷 948-959页

作者：华庆新 Institute of Biophysics Academia Sinica Beijing

Resonance assignments of the ~1H spectrum of insulin are the basis on which to investi-gate its solution conformation by using nmr method. Owing to the complicated aggregationbehaviour of the molecule to give broadened n. m. r. lines, only limited resonance assignmentshave been reported. S-sulfonated A and B chains of insulin gave ~1H spectra with good reso-lutions. Based on the 500 MHz absolute 2d-COSY spectrum and 400 MHz phase sensitivedQF-COSY, Relayed-COSY and NOESY spectra of B chain recorded in d_2O, all of thespin system identifications of the non-labile protons in the S-sulfonated B chain of insulinwere reported including the specific resonance assignments of eight residues: B_3Asn, B_9Ser,B_(16)Tyr, B_(22)Arg, B_(26)Tyr, B_(27)Thr, B_(28)Pro and B_(29)Lys. The pK values of B_(16) and B_(26) tyrosineare 10.65 and 10.60 respectively from pH titration.

关键词： insulin S-sulfonated B chain 2d-nmr

Conformation of an analog of human follicular gonadotropin releasing peptide TF14 in solution by 2d-nmr

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Science China(Life Sciences) 1996年第6期39卷 600-607页

作者：吴宏伟翟纯王德心林克椿 department of Biophysics Beijing Medical University Beijing 100083 China Research Institute of Petroleum Processing Beijing 100083China Institute of Pharmacy Chinese academy of Medical ScienoesBeijing 100021China

Since the discovery of hF-GRP, several analogs have been synthesized in order to see their effects on the gonadotropin releasing activity, either as agonists or antagonists to this peptide. TF14 is one of these analogs, whose 14th position in the primary sequence is Phe instead of Asn in hF-GRP, while its activity is doubled. 2d-nmr (TOCSY, ROESY) was used to determine the conformation of TF14 in solution. Compared with hF-GRP, the whole peptide is in a non-typical more extended conformation, which may give some due to the relation between structure and function of these two peptides.

关键词： hF-GRP TF14 2d-nmr TOCSY ROESY.

2d-nmr技术确定准噶尔橐吾中一个新倍半萜的结构

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2D-NMR技术确定准噶尔橐吾中一个新倍半萜的结构

用2d-nmr技术测定Quinquenoside L3的结构

第十届全国波谱学学术会议

作者：符波杨立贾忠建兰州大学化学系应用有机国家重点实验室

＜正＞准噶尔橐吾[Ligularia songarica（Fich.）Ling]系菊科橐吾属多年生草本植物,在我国独产于新疆,苏联也有分布。根部以紫宛或山紫宛之名人药,主治支气管咳喘、肺结核、咯血等症.据报道到目前为止,约有32种橐吾属植物的化

关键词： 2d-nmr 准噶尔橐吾新倍半萜的结构

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用2D-NMR技术测定Quinquenoside L3的结构

含手性膦配体3-MBPA的铂(Ⅱ)配合物的2d nmr研究

第十届全国波谱学学术会议

作者：王金辉李铣李文钟大放沈阳药科大学天然药物研究室沈阳药科大学分析测试中心

继从加拿大产西洋参茎叶中分离得到11种已知人参皂甙和两种新的皂甙,即西洋参皂甙L和L,我们最近又分离得到一种新皂甙,即西洋参皂甙L(1)。本文报道利用2d- nmr技术(HMBC及2d-HOHAHA谱)对该新皂甙1的结构鉴定。

关键词： 2d-nmr 结构西洋渗皂甙L< ,3>

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波谱学杂志 1999年第2期16卷 143-147页

作者：吴达旭施继成康北笙中国科学院福建物质结构研究所结构化学国家重点实验室福州350002

利用一维和二维ＮＭＲ技术，对含有手性膦配体的铂配合物ｔｒａｎｓ［Ｐｔ（３ＭＢＰＡＨ）２Ｃｌ２］（１）和ｔｒａｎｓ（Ｐｔ（３ＭＢＰＡ）（３ＭＢＰＡＨ）Ｃｌ）（２）进行１Ｈ和１３ＣＮＭＲ谱分析，否定了化... 详细信息

利用一维和二维ＮＭＲ技术，对含有手性膦配体的铂配合物ｔｒａｎｓ［Ｐｔ（３ＭＢＰＡＨ）２Ｃｌ２］（１）和ｔｒａｎｓ（Ｐｔ（３ＭＢＰＡ）（３ＭＢＰＡＨ）Ｃｌ）（２）进行１Ｈ和１３ＣＮＭＲ谱分析，否定了化合物（２）的结构为ｔｒａｎｓ［Ｐｔ（３ＭＢＰＡ）２］的可能，归属了所有的１Ｈ和１３ＣＮＭＲ谱线。

关键词：手性膦配体 2d-nmr MBPA 铂配合物

A New Nortriterpenoid Glycoside from Sinofranchetia chinensis

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Chinese Chemical Letters 2001年第1期12卷 55-58页

作者： Xiao Hui YANG Rui Jun MA Run Hua LU Xiao Ning WEI Yun Pu WANG Han Qing WANG Jie KONG department of Biology Northwest Normal UniversityLanzhou 730070 United Laboratory ofTibetanMedicines andNaturalMedicines Lanzhou Institute of Chemical Physics Chinese Academy of SciencesChee Zheng Tibetan Medicines GroupLanzhou 730000 department of Chemistry NorthwestNormal UniversityLanzhou 730070

A new 30-nortriterpenoid glycopside, 3-O-a-L-arabinopyranosyl-30-norhederagenin 28-O-a-L-rhamnopyranosyl(1-->4)-beta -d-glucopyranosyl (1-->6)-beta -d-glucopyranoside 1, named sinofoside A was isolated from Sinofranchetia chinensis. Its structure was elucidadated by spectra FAB-MS, 2d-nmr including H-1-H-1 COSY, H-1-C-13 COSY, TOSCY, HMBC and NOESY techniques.

关键词： Sinofranchetia chinensis nortriterpenoid glycopside sinofoside A 2d-nmr

A New Triterpenoid Glycoside from decaisnea Fargesii

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Chinese Chemical Letters 1999年第5期10卷 397-400页

作者： Kong, J Lu, RH Gao, HX Wang, M Wang, YP Wang, HQ Chinese Acad Sci Lanzhou Inst Chem Phys Lanzhou 730010 Peoples R China NW Normal Univ Dept Chem Lanzhou 730070 Gansu Peoples R China

A new triterpenoid glycoside, named decaisoside F. has been isolated from decaisnea faresii. Its structure was determined on basis of chi mical method, FAB-MS. homonuclear and heteronuclear correlation esperiments. including H-1--(HCOSY)-H-1. H-1--C-13 COSY, TOSCY, HMBC and NOESY techniques to be 3-O-beta-d- xylopyranosyl (1-->3)-alpha-L-rhamnopyranosyl (1-->2)-alpha-Larabinopyranosyl) hederagenin 28-O-beta-d-xylopyranosyl (1-->4)-beta-d-glucopyrancrsyl (1-->6)-beta-d-glucopyranoside.

关键词： decaisnea fargesii triterpenoid glycoside decaisoside F 2d-nmr

Synthesis and Structural determination of (2R,4S,SS)-(+)-Threo-5-(2,2-dichloroacetamido)-4-(4-nitrophenyl)-2-aryl-1,3-dioxanes

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Chinese Chemical Letters 1999年第3期10卷 199-200页

作者： Jun LIU Xian Ming HU Han Sheng XU(department of Chemistry, Wuhan University, Wuhan 430072) department of Chemistry Wuhan University Wuhan 430072 China

(2R,4S,SS)-(+)-threo-5-(2,2-dicloroacetamido)-4-(4-nitrophenyl-2aryl-l,3dioxanes, were synthesized with high diastereoselectivity and good yields. The structuresofacetals were determined and the configurations were co... 详细信息

关键词： Acetals diastereoselective synthesis chloramphenicol 2d-nmr

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Chemical shift assignments of two oleanane triterpenes from Euonymus hederaceus

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2005年第8期6卷 719-721页

作者：胡合姣王奎武吴斌孙翠荣潘远江 department of Chemistry Zhejiang UniversityHangzhou 310027 China

1H-nmr and 13C-nmr assignments of 12-oleanene-3,11-dione (compound 1) were completely described for the first time through conventional 1d nmr and 2d shift-correlated nmr experiments using 1H-1HCOSY, HMQC, HMBC techniques. Based on its nmr data, the assignments of 28-hydroxyolean-12-ene-3,11-dione (compound 2) were partially revised.

关键词： Euonymus hederaceus 12-oleanene-3 11-dione 28-hydroxyolean- 12-ene-3 11-dione 1d-nmr 2d-nmr Assignment