diastereoisomers

The ratio of two diastereoisomers was determined by chiral HPLC .

通过手性HPLC测定了两种非对映异构体的比例。

NMR identification and stereoisomeric purity determination of HM-PAO diastereoisomers

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

Preparative Separation of Aloin Diastereoisomers by High-Speed Countercurrent Chromatography Combined with Silica Gel Column Chromatography

高速逆流色谱与硅胶柱色谱结合分离制备高纯度芦荟素异构体

Synthesis of Hexamethyl Propylamine Oxime and Comparative Study of Its Diastereoisomers

脑血流显象剂六甲基丙二胺肟的制备及其立体异构体的比较与临床初步应用

Ferrocenyl diazo ketone 1a was reacted with five imines 2 via the [ 2 + 2 ] cycloaddition reaction , giving a series of β - lactam diastereoisomers 3a-e , with yields of 50-86 % .

利用二茂铁重氮酮1a和5个亚胺2进行[2+2]环加成反应，得到了一系列空间上存在顺反异构的β-内酰胺化合物3a-e，产率为50-86%。