非对映异构体

非对映异构体~（13）CNMR化学位移不等性研究

Studies on the ￣( 13 ) C NMR Chemical Shift Differences Between Diastereomers

通过手性HPLC测定了两种非对映异构体的比例。

The ratio of two diastereoisomers was determined by chiral HPLC .

研究表明，用DMTA进行拆分时，在乙酸乙酯中可析出非对映异构体盐，对其进行重结晶和解离后得到光学纯西布曲明。

Among them , when using DMTA as resolving agent , the salt of non-enantiomer can be facilely precipitated in ethyl acetate . Followed by recrystallization and dissociation , optically pure sibutramine was obtained .

不是对映异构体的非对映异构体也属于这一类。

Diastereomers that are not enantiomers also fall into this category .

发现了分离非对映异构体的重结晶溶剂。

Furthermore , we discovered the recrystallization solvent for separation of the diastereomer .

β-砜基黄原酸酯制备中的介质效应及其非对映异构体的确证

Medium Effect on the Preparation of β Sulfonyl Xanthates and Configurational Assignments of the Diastereoisomeric Xanthates

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

Separation of α,ε - diaminopimelic acid diastereomers in bacteria cell wall by HPLC with chiral derivatization

创建了亚叶酸非对映异构体的高效快速分离方法。

( 4 ) Developed a high efficiency and fast method for separation of folinic acid diastereomeric .

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

Preparation of Molecularly Imprinted Monolithic Capillary Column for Separation of Diastereomers of Cinchona Alkaloids by Pressure-Assisted Capillary Electrochromatography

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。

Diastereomers of cinchonine and cinchonidine were fully separated both under isocratic and gradient elutions on the chiral monolithic column .

磷酸三丁酯萃取分离磷酸与盐酸的研究用层析法分离磷酸酯基化学修饰的二核苷酸的非对映异构体

Study of Extration and Separation of Hydrochloric and Phosphoric Acids by Tributyl Phosphate Chromatographic Separation of Diastereomers of Dinucleotides Chemically Modified at Phosphate Backbone

拆分采用非对映异构体拆分方法，在有机溶剂中用酒石酸为拆分剂，得到S型。

Resolution of the use of non-resolution of enantiomers methods used in organic solvents tartaric acid for the separation agent , to be S-type .

HM-PAO非对映立体异构体的核磁共振鉴定及立体异构纯度的测定

NMR identification and stereoisomeric purity determination of HM-PAO diastereoisomers

综述手性化合物的萃取分离方法，包括亲合萃取分离、配位萃取分离、形成非对映体立体异构体萃取分离、离子交换反应萃取分离、反相胶团萃取分离以及膜萃取分离。

The methods of extraction separation of chiral compounds were reviewed , including affine extraction separation , ligand extraction separation , forming non-enantiomer extraction separation , ion-exchange reaction extraction separation , reversed micelle extraction separation and membrane extraction separation .