作者:Edyta M. Brzostowska、Alexander Greer
DOI:10.1021/ja027416s
日期:2003.1.1
provides the first evidence that amine has an opportunity to engage in bonding with pentathiepin to promote its decomposition. The study provides mechanistic insight into the process that gives rise to pentathiepin biological activity. Primary or secondary amine will allow for an intramolecular addition to the pentathiepin ring at the nearest sulfur (S1). In contrast, tertiary amine adds reversibly to
提出了一项计算和实验研究,它提供了第一个证据,证明胺有机会与五硫唑嘌呤结合以促进其分解。该研究提供了对产生五硫磷生物活性的过程的机械洞察。伯胺或仲胺将允许在最近的硫 (S1) 处对五硫杂环庚烷进行分子内加成。相比之下,叔胺可逆地添加到 S1,因为氮不能通过去质子化失去其正电荷。这排除了胺促进步骤。表征了能量低洼的过程,对应于由伯胺或仲胺的亲核活化引发的 S3 损失。降冰片烯捕集研究支持通过 S3 单元转移进行五硫磷脱硫。