V2EX isosterism

Isosterism

Definition / 定义

等排体性(等同构性):化学中的概念,指不同原子、离子或官能团由于在尺寸、形状或价电子结构等方面相似,从而表现出相近的结构或性质(常用于解释分子性质相似性与药物设计中的“等排体替换”)。该词也可延伸到“等排体关系/等排性”的讨论。

Pronunciation / 发音

/asstrzm/

Examples / 例句

Isosterism helps chemists predict when two molecules may behave similarly.
等排体性帮助化学家预测两种分子何时可能表现出相似的行为。

In medicinal chemistry, isosterism is often used to replace a functional group to improve potency or reduce side effects without drastically changing the molecule’s shape.
在药物化学中,等排体性常用于替换某个官能团,以在不显著改变分子形状的前提下提高效力或减少副作用。

Etymology / 词源

isosterism 来自前缀 **iso-**(表示“相同、相等”,源于希腊语 isos)与词根 **ster- / stereo-**(与“立体、空间结构”相关,源于希腊语 stereos,意为“坚固、立体的”)的组合,整体表达“在空间结构/构型上相近(从而性质相近)”的概念。

Reated Words / 相关词

Literary Works / 文学作品

  • The Nature of the Chemical Bond Linus Pauling(讨论结构相似性、价键理论背景下与等排体思想相关的内容)
  • Burger’s Medicinal Chemistry and Drug Discovery(药物设计中常用“等排体/生物等排体”策略,涉及 isosterism 相关表述)
  • Foye’s Principles of Medicinal Chemistry(介绍官能团替换与生物等排体概念时常涉及 isosterism)
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