Anomeric Effects in Sulfamides.

Anomeric Effects in Sulfamides.
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DOI:
10.1021/acs.jpca.6b02757
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发表时间:
2016-05-26
期刊:
The journal of physical chemistry. A
影响因子:
--
通讯作者:
Wiest O
Wiest O
中科院分区:
其他
文献类型:
--
作者:
Hansen E;Limé E;Norrby PO;Wiest O

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磺酰胺及其更简单的磺酰胺类似物是大量生物活性化合物中的常见官能团。这部分是由于它们独特的电子结构和构象行为,其模拟了许多蛋白酶、酯酶和相关酶中涉及的四面体中间体。在这里,这些独特的结构元素的起源进行了分析的上下文中的耦合,双异头效应使用DFT计算,包括构象扫描,和NBO分析。结果表明,这些耦合相互作用可以隐式参数化的MM 3 * 型力场使用量子引导的分子力学(Q2MM)方法,产生精确的力场参数的磺酰胺和磺胺类药物的分子力学研究。
Sulfamides, together with their simpler sulfonamide analogs, are common functional groups in a significant number of biologically active compounds. This is partly due to their unique electronic structure and conformational behavior, which mimics the tetrahedral intermediate involved in many proteases, esterases, and related enzymes. Here, the origin of these unique structural elements are analyzed in the context of a coupled, double anomeric effect using DFT calculations, including conformational scans, and NBO analysis. It is shown that these coupled interactions can be implicitly parametrized in MM3* type force fields using the quantum-guided molecular mechanics (Q2MM) method, yielding accurate force field parameters for molecular mechanics studies of sulfamides and sulfonamides.
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影响因子: 18.3
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