A pair of diastereoisomeric saponins with nine sugar moieties were isolated from the stem barks of Albizia julibrissin.
从合欢皮 95 %乙醇提取物中用溶剂和色谱法分离得到一对非对映异构体九糖皂苷 ( 1,2 ) ,经化学与光谱方法鉴定其结构 。
Lithium aluminum hydrides modified with 1,2,5,6diisopropylidene mannitol and βdialkylaminoalcohol were used to reduce acetophenone or propiophenone to yied corresponding optically active alcohol which were converted to diastereoisomers with αacetylLpropionyl chloride.
为开发新型手性铝锂试剂,探讨双不对称诱导效应,选用含杂原子的光学活性氨基醇为辅助配体,与1,2,5,6 二丙酮甘露醇共同修饰LiAlH4,对潜手性芳酮进行不对称还原,得到光学活性醇;通过与α D 乙酰氧基 L 丙酰氯生成非对映异构体酯,经气相色谱分析,对映体过量在43 6%～77 7%之间。
Separation of α,ε-diaminopimelic acid diastereomers in bacteria cell wall by HPLC with chiral derivatization
手性衍生-高效液相色谱法拆分菌体细胞壁中α,ε-二氨基庚二酸非对映异构体
The quantitative determination of leucogen was performed with external standard method using total area of its four diastereomers,and its related substance was determined by normalization method.
min-1;检测波长210 nm,外标法(以4种非对映异构体峰面积之和计)测定利可君含量,峰面积归一化方法测定有关物质。
Primary study on the quantitative error in the determination of diastereomeric ratio by using 13 C NMR;
~(13)C NMR用于测定非对映异构体组成的定量误差初探
Studies on the ￣(13)C NMR Chemical Shift Differences Between Diastereomers;
非对映异构体~（13）C NMR化学位移不等性研究
A cinchonine imprinted chiral monolithic column was prepared for the separation of the diastereomers of cinchonine and cinchonidine by in situ molecular imprinting technique.
在等度及梯度洗脱条件下 ,非对映异构体辛可宁与辛可尼丁被完全分离。
FRAGMENTATION STUDY OF DIASTEREOISOMERIC 2-METHYLTETROLS,PHOTOOXIDATION PRODUCTS OF ISOPRENE
异戊二烯的光氧化产物——非对映异构体2-甲基丁四醇的质谱解析
Preparation of Molecularly Imprinted Monolithic Capillary Column for Separation of Diastereomers of Cinchona Alkaloids by Pressure-Assisted Capillary Electrochromatography
原位分子印迹毛细管电色谱柱的制备及其对非对映异构体的分离
Study on the Circular Dichroism of (S)-and (R)-Wuweizisu C
S-和R-五味子丙素非对映异构体的圆二色谱研究
Direct Experimental Evidence of Ternary Diastereomeric Complexes in Chiral Separations of Phenylglycine Enatiomers with Chiral Mobile Phase by RP-HPLC
三元非对映异构体复合物的直接实验证据及其在对映体手性分离中的作用
Separation of α,ε-diaminopimelic acid diastereomers in bacteria cell wall by HPLC with chiral derivatization
手性衍生-高效液相色谱法拆分菌体细胞壁中α,ε-二氨基庚二酸非对映异构体
Direct resolution of citalopram enantiomers by chiral stationary phase using CHIRAEL OJ-H column
OJ-H柱拆分西酞普兰对映异构体
Such molecules are known as enantiomorphs or optical isomers.
这种分子被称为对映结构体或旋光异物体。
Spectrometry Study of Chiral Discrimination for the Naproxen Enantiomers
光谱法研究萘普生对映异构体的手性识别
Determination of S,S-enantiomer in(1R,2R)-(-)-1,2-cyclohexanediamine by GC
GC法测定(1R,2R)-(-)-1,2-环己二胺中S,S对映异构体
High Performance Liquid Chromatography Methods for the Separation of Methyl(2S, 4E)-5-chloro-2-isopropylpent-4-enoate
高效液相色谱拆分（2S，4E）5-氯-2-异丙基-4-戊烯酸甲酯对映异构体
Enantioselective toxicity induced by bifenthrin between target organism and non-target organism
联苯菊酯对靶标生物及非靶标生物毒性的对映体差异
Chiral separation of fenvalerate and the stress effects of its enantiomers on Platymonas subcordiformis
氰戊菊酯的手性拆分及其对映异构体对扁藻的胁迫效应
Study on the Test for Related Substances of Primaquine Phosphate by TLC and Its Enantiomer
薄层色谱法检查磷酸伯氨喹的有关物质及对映异构体的研究
HPLC Chiral Separation Study of Some Mannich Enantiomers;
几个曼尼希碱化合物对映异构体的HPLC手性分离分析研究
Stereoselectivity Analysis of Propranolol Enantiomer and Study Function of GBLP;
普萘洛尔对映异构体的立体选择性分析与GBLP功能研究
Comparison of two derivatization methods for enantiomer profiling of methamphetamine
甲基苯丙胺对映异构体两种衍生化方法的比较分析
Chiral separation of cidofovir by reversed-phase high performance liquid chromatography
西多福韦对映体的拆分及异构体含量分析方法研究
Development of a chiral HPLC method for the analysis of naftopidil enantiomers
手性高效液相色谱法测定萘哌地尔对映异构体(英文)