Ester and amide groups are isosterisms each other,so replacement of the ester groups with amide groups may be useful for finding new 1,5-benzothiazepines with unique antimicrobial activity.
酯基与酰胺基互为电子等排体,为了筛选具有特异性抑菌活性的1,5-苯并硫氮杂卓类物质,本论文依据生物电子等排原理,设计、合成了酰胺基取代的三个系列、十四个新的1,5-苯并硫氮杂卓类化合物,用IR、~1H NMR、MS及元素分析对其结构进行表征,评价了上述化合物对白色念珠菌、金黄色葡萄球菌、白色葡萄球菌及大肠杆菌的体外抗菌活性,初步探讨了其抑菌的构效关系。
Application of bioisosterism in pesticide and medicine development
生物电子等排原理在农药与医药开发中的应用
Review of the study of structure modification of HIV NRTIs on the principles of bioisosterism
基于生物电子等排原理的核苷类HIV-1逆转录酶抑制剂研究进展
The System Construction of Undergraduate Electronic Organ Course in High Music School;
高等音乐院校本科双排键电子琴专业课程构建
Transurethral Resection of BPH after Transurethral Resection of the Plasma Causes of Dysuria
BPH经尿道等离子电切术后排尿困难原因分析
They're queuing up to see the film.
他们排队等候看电影。
I get in line to make a call .
我排队等候打电话。
They're queuing up to see a film.
他们排着队等候看电影.
Study on the Removal of the Exhaust Emissions from Diesel Engine with Dielectric Barrier Discharge NTP;
介质阻挡放电低温等离子体净化脱除柴油机排放物的初步研究
Electonic composition: Computer-assisted typesetting and page make up.
电子排版:用电脑辅助的排字和拼版。
Paula: Here you are, some ham, salted eggs, beefsteak, pork chap, butter, bread, steamed dumplings and so on.
你来看，火腿、咸鸡蛋、牛排、猪排、黄油、面包、包子等等。
typesetting computer
照相排版电子计算机
The outer ring contains the valence electrons.
排在外层的有价电子。
semi-electronic typesetter
半电子式照相排字机
full electronic typesetter
全电子式照相排字机
Its processes the liquid with harm ion, by descending to the exhaustion standard through the methods, such as electrolysis、chemistry、ion exchange and the film separation etc.
把含有害离子的废液,经由电解、化学、离子交换、膜分离等方法下降至排放标准。
solid state electronic device equivalent circuit
固态电子器件等效电路
"Other electronic instruments include electronic organs and spine-like ondes martenot, so on and so forth."
其他电子乐器还包括电子琴，玛特诺电子琴等等。
plasma electron beam remelting
等离子 电子束重熔
