1) pairing configuration
成对构型
2) gemel
['dʒeməl]
成对构件
3) absolute configuration
绝对构型
1.
Verification of the bilobalide′s absolute configuration using CD spectrum and chemical constituents of the extract from Ginkgo biloba;
应用圆二色谱法验证银杏内酯的绝对构型及银杏提取物的化学成分
2.
This paper describes the determination of the absolute configuration of the key lactone intermediate(2),obtained by cinchonine mediated desymmetrization of cis-1,2,3,6-tetrahydrophthalic anhydride(1),and its application in the stereoselective synthesis of a polyhydroxy cyclohexyl-β-amino acid derivative(6).
本文对从内消旋cis-1,2,3,6-四氢邻苯二甲酸酐经去对称化得到的内酯关键中间体(2)的绝对构型进行了确定,并通过邻二羟基化和内酯开环,经两步反应以45%的产率从化合物(2)高立体选择性地合成了光学活性的(1R,2S,3R,4S,6R)-2,3,4-三羟基-2-(苄氧羰基氨基)-环己烷甲酸苄酯(6)。
3.
The determination of absolute configuration for chiral compounds is one of the most important problem in the organic chemisty, especially for chiral drug synthesis.
手性化合物绝对构型的确定一直是有机化学特别是手性药物合成研究过程中经常遇到的问题之一。
4) relative stereochemistry
相对构型
1.
The relative stereochemistry of the 1,10-double bond and that of the methoxyl,methyl,and acetoxy groups were determined by NOESY experiments and analyses of the coupling constants.
通过NOESY实验以及偶合常数的分析,确定了其结构中1,10位双键和甲氧基、乙酰氧基、甲基等基团的相对构型。
5) shaping mechanism
成型机构
1.
Study on control method of the new shaping mechanism of ring spinning frame;
细纱机新型成型机构控制方法的研究
2.
Development of the shaping mechanism of a new ring spinning frame;
新型细纱机成型机构的研制
3.
Research on the shaping mechanism of epicyclic gear train on ring frame;
细纱机差动轮系成型机构的探讨
6) model-composing
模型构成
补充资料：成对
1.犹配对。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条