| 查看: 528 | 回复: 6 | |||
| 当前主题已经存档。 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[交流]
请问这里最后一个单词base是什么意思？
|
|||
Sucinimidyl esters are used, inter alia, as activated acyl derivatives, in particular when other acylating agents, such as acid chlorides or anhydrides, cannot be employed on account of the lability of startingmaterials or final products. This applies particularly in the field of peptide chemistry. For coupling a covalent peptide bond, an activated carboxyl component is necessary. The previously most frequently used method for carboxyl activation is basedon the formation of succinimidyl esters by reaction of the corresponding carboxylic acid with carbodiimides, such as, for example, N,N'-dicyclohexylcarbodiimide (DCC) and N-hydroxysuccinimide. The disadvantage in this process lies, on the one hand, inthe coupling reagent DCC on account of its allergenicity and of the high price, and, on the other hand, in the by-product N,N'-dicyclohexylurea obtained here, which firstly contaminates the succinimidyl ester and secondly has to be disposed of. For these reasons, it was attempted to replace the system DCC/N-hydroxysuccinimide. Possible alternatives are systems of the type halophosphoric acid ester/N-hydroxysuccinimide/base.[/size]就是这里最后一个base，是啥意思？我不是学生物的 为了有语境，把全部一段都写了，网上搜的一段专利文献，留下来我也好找得到 http://www.patentgenius.com/patent/5929251.html |
回复此楼» 猜你喜欢
最失望的一年
已经有12人回复
-
拟解决的关键科学问题还要不要写
已经有8人回复
-
存款400万可以在学校里躺平吗
已经有29人回复
-
求推荐英文EI期刊
已经有5人回复
-
请教限项目规定
已经有4人回复
-
国自然申请面上模板最新2026版出了吗？
已经有20人回复
-
26申博
已经有3人回复
-
基金委咋了？2026年的指南还没有出来？
已经有10人回复
-
基金申报
已经有6人回复
-
疑惑？
已经有5人回复
5楼2008-08-19 21:53:14
2楼2008-08-19 11:21:26
3楼2008-08-19 13:54:01
4楼2008-08-19 13:57:43