V2EX anomer

Anomer

定义 Definition

anomer(异头体):在糖类化学中,指仅在异头碳(anomeric carbon)构型不同的一对(或多种)立体异构体,常见为α(alpha)β(beta)两种形式。它们通常在溶液中可通过变旋(mutarotation)相互转化。

发音 Pronunciation

/nmr/

例句 Examples

Glucose has two anomers: alpha and beta.
葡萄糖有两种异头体:α型和β型。

In aqueous solution, the anomer ratio can change over time due to mutarotation.
在水溶液中,由于变旋作用,异头体的比例会随时间发生变化。

词源 Etymology

anomer由前缀 ano-(与“异头/上方”相关的构词成分,用于指糖的异头中心)和后缀 -mer(表示“部分/单位”,常用于化学与聚合物术语,如 polymer)组合而成。该词用于强调:这类异构差异只发生在异头碳,尤其常见于环状糖(如吡喃糖、呋喃糖)形成后产生的α/β差别。

相关词 Related Words

文学作品中的用例 Literary Works

  • Organic Chemistry(Paula Yurkanis Bruice)
  • Organic Chemistry(Jonathan Clayden, Nick Greeves, Stuart Warren)
  • Lehninger Principles of Biochemistry(David L. Nelson, Michael M. Cox)
  • Biochemistry(Jeremy M. Berg, John L. Tymoczko, Lubert Stryer)
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