新药甲磺酸帕珠沙星的有机波谱分析

应用核磁共振波谱(NMR)、电子轰击质谱(EIMS)、紫外(UV)、红外(IR)吸收光谱等技术确证新药甲磺酸帕珠沙星的分子结构；解释了该结构在NMR、EIMS、IR、UV等谱图中的特征吸收峰、共振峰及特征离子的一一对应归属。     

meso-四(烷氧基苯基)卟啉及其金属络合物的波谱研究

采用^1H NMR、MS、IR、UV、元素分析等分析测试表征手段确证了所合成的10个系列卟啉及其金属络合物的结构,研究了不同位置、不同链长烷氧基四苯基卟啉和不同金属离子卟啉络合物的结构与^1HNMR、IR和UV等波谱之间的关系,总结了卟啉配体及其金属络合物的^1H NMR、IR和UV判据,报道和解释了meso-四(烷氧基苯基)卟啉铜、锰络合物和meso-四(邻烷氧基苯基)卟啉钴络合物的^1H NMR研究结果,通过MS、^1H NMR、IR、UV、元素分析确证了我们所合成的铁卟啉为μ-氧桥联夹心二聚体结构,且存在两种典型构象,导致同系列络合物有四种类型^1H NMR谱图。     

依碳氯替泼诺的结构分析研究

对依碳氯替泼诺的红外光谱(IR)、紫外光谱(UV)、质谱(MS)、氢-氢相关谱(^1H-^1HCOSY)、碳谱(DEPT-45、DEPT-90、DEPT-135)、碳氢相关谱(HMQC)数据和解析进行了全面的报道。对所有的^1H NMR、^17C NMR谱的信号进行了归属，讨论了质谱的主要碎片离子的可能裂解方式和红外所对应的官能团的振动吸收形式、紫外特征吸收峰所对应的不饱和共轭体系电子跃迁能量。     

丁二酸双(单)异辛酯磺酸钠的合成

以马来酸酐和异辛醇为起始原料,经酯化和磺化反应制得丁二酸双异辛酯磺酸钠(1)和丁二酸单异辛酯磺酸钠(2); 1在氢氧化钠作用下经部分皂化反应合成了丁二酸单异辛酯磺酸钠(3),其结构经¹H NMR, ¹³C NMR, IR和MS(ESI)表征。     

美沙拉秦的波谱学数据与结构表征

对美沙拉秦的红外光谱（IR）、紫外光谱（UV）、质谱（MS）、碳谱（DEPT-135）、碳氢相关谱（HMQC）予以解析和报道.对所有1H NMR和13C NMR谱的信号进行了归属;同时讨论了质谱的主要碎片离子可能的裂解方式和红外特征吸收峰所对应的官能团的振动形式.     

尾式卟啉-5-氟尿嘧啶及其金属络合物的光谱分析

合成了24种新型的尾式卟啉-5-氟尿嘧啶化合物及其金属锰络合物,通过核磁共振氢谱（NMR）、质谱（MS）、红外光谱（IR）、紫外光谱（UV）及元素分析确定了其结构,并讨论了24种化合物光谱的关系特征及其规律,确定卟啉类配体与金属络合的NMR、IR、UV判据。     

沙姜精油中沙姜脑的化学结构与光谱研究

从沙姜精油中分离获得沙姜脑,用GC测得纯度达98.8%,利用IR,UV,~1H NMR,~(13)C NMR,MS鉴定其化学结构为反式-对-甲氧基桂皮酸乙酯,并对化合物光谱数据归宿与MS裂解规律进行了讨论。     

辛伐他汀的波谱学数据和结构确证

对辛伐他汀的红外(IR)、紫外(UV)、质谱(MS)、氢-氢相关谱(^1H-^1HCOSY)、碳谱(^13C NMR,DEPT)、碳氢相关谱(HMQC)、碳氢远程相关谱(HMBC)予以解析并进行了报道,对所有的^1H NMR和^13C NMR谱信号进行了归属;讨论了红外特征吸收峰所对应的官能团的振动形式,并且对样品进行热差和热重分析,显示该样品为单一晶型,不含结晶水。     

金雀花碱的波谱特征与结构确证

提供了金雀花碱结构的波谱特征。采用红外光谱(IR)、紫外光谱(UV)一维(1H,13C)和二维(1H-1HCOSY,HMQC,HMBC)核磁共振光谱(NMR)、质谱(EI-MS)对金雀花碱进行结构确证,对所有的1H NMR和13CNMR谱进行了归属;讨论了红外吸收光谱峰所对应的官能团的振动形式,并具体分析了金雀花碱MS中主要碎片离子的裂解途径。波谱学研究结果确证了金雀花碱的结构。     

咪喹莫特的波谱学数据与结构表征

对咪喹莫特的红外(IR)、紫外(UV)、质谱(MS)、氢-氢相关谱(^1H--^1H COSY)、碳氢相关谱(HMQC)、碳氢远程相关谱(HMBC)予以解析并进行了报道。对所有的^1H NMR、^13C NMR谱的信号进行了归属；讨论了质谱的主要碎片离子的可能的裂解方式和红外特征吸收峰所对应的官能团的振动形式。     

Two New Alkaloids from Flueggea virosa

Two new securinega‐type alkaloids and four known ones were isolated from the twigs and leaves of Flueggea virosa. The structures of the new compounds were elucidated by means of spectroscopic methods (UV, IR, HR‐ESI‐MS, and 1D‐ and 2D‐NMR), and the absolute configurations were assigned by CD spectra. The structures of the known compounds were identified by comparison of their physical and spectroscopic data with those reported in the literature.     

New Monoterpenoids from Fruits of Gardenia jasminoides var. radicans

One new lactone, cyclopentanepyrone A ( 1 ), and two new monoterpenoids, gardeterpenone A ( 2 ) and jasminoside V ( 3 ), were isolated from the fruits of Gardenia jasminoides var. radicans, along with four known monoterpenoids, 4 – 7 , which were isolated from this plant for the first time. The structures of the isolates were elucidated by extensive spectroscopic studies, including UV, IR, 1D‐ and 2D‐NMR, ESI‐MS, HR‐ESI‐MS, and CD experiments.     

8‐(3,3‐Dimethylallyl)‐Substituted Flavonoid Glycosides from the Aerial Parts of Epimedium koreanum

Ten 8‐(3,3‐dimethylallyl)‐substituted flavonoid glycosides, including the four new flavonol glycosides 1 and 3 – 5 and the new flavanonol glycoside 2 , besides five known flavonol glycosides, were isolated from the aerial parts of Epimedium koreanum Nakai . Their structures were determined by spectroscopic methods, including UV, IR, 1D‐ and 2D‐NMR, ESI‐MSⁿ, HR‐ESI‐MS, and circular dichroism (CD) experiments.     

Two New Neolignans from the Stems of Syringa pinnatifolia Hemsl. var. alashanensis

Two new neolignans, syripinnalignins A and B ( 1 and 2 , resp.), were isolated from the 95% EtOH extract of the stem of Syringa pinnatifolia Hemsl . var. alashanensis. The structures of 1 and 2 were elucidated by spectroscopic methods, including UV, IR, HR‐ESI‐MS, and extensive 1D‐ and 2D‐NMR techniques.     

Structure elucidation and NMR assignments of two unusual xanthones from Lomatogonium carinthiacum (Wulf) Reichb

Two new unusual xanthones, 5‐O‐β‐d ‐glucopyranosyl‐1,3,8‐trihydroxy‐5,6,7,8‐tetrahydroxanthone (1) and 1,3,5,8‐tetrahydroxy‐5,6,7,8‐tetrahydroxanthone (2), were isolated from Lomatogonium carinthiacum (Wulf) Reichb. Their structures were elucidated on the basis of spectroscopic methods including UV, IR, ESI‐MS, 1D NMR, and 2D NMR. Copyright © 2013 John Wiley & Sons, Ltd.     

Fischelactone B: A New Eremophilane Dimer from Ligularia fischeri

A new eremophilane dimer, namely fischelactone B, was isolated from the roots of Ligularia fischeri. Its structure was established on the basis of spectroscopic data, including IR, HR‐ESI‐MS, and 1D NMR and 2D NMR spectroscopy.     

Cottoquinazolines E and F from Neosartorya fischeri NRRL 181

Two new norfumiquinazolines, cottoquinazolines E and F ( 1 and 2 , resp.), together with pyripyropene A ( 3 ), were isolated from the fungus Neosartorya fischeri NRRL 181. The structures of the new isolates were established by spectroscopic methods, including UV, IR, HR‐ESI‐MS, and extensive 1D‐ and 2D‐NMR techniques. To the best of our knowledge, this is the first report on norfumiquinazolines and pyripyropenes produced by the genus Neosartorya.     

Iridoid Glucosides from Eremostachys moluccelloides Bunge

From the aerial parts of Eremostachys moluccelloides Bunge , a new iridoid glucoside, lamalbidic acid ( 7 ), was isolated as its choline salt 7a together with six known iridoid glucosides, 5‐deoxysesamoside ( 1 ), 6β‐hydroxy‐7‐epiloganin ( 2 ), lamalbide ( 3 ), shanzhiside methyl ester ( 4 ), sesamoside ( 5 ), and 5‐deoxypulchelloside I ( 6 ). The structures of 7a and 7 (obtained from 7a ) were elucidated by spectroscopic (UV, IR, 1D‐ and 2D‐NMR, and ESI‐MS) methods.     

Two New Trijugin‐Type Limonoids from Cipadessa cinerascens

Two new trijugin‐type limonoids, cipatrijugins G and H ( 1 and 2 , resp.) along with four known limonoids, were isolated from the leaves of Cipadessa cinerascens. All structures were elucidated on the basis of spectroscopic analyses, including IR, 1D‐ and 2D‐NMR, and ESI‐MS and HR‐ESI‐MS techniques.