作者:M. Poje、Lea Sokolić-Maravić
DOI:10.1016/s0040-4020(01)90112-7
日期:1988.1
3 have their origin in C(5) of uric acid (1). None of the mechanisms that have been proposed for this reaction would have predicted this result. Isotope-labelling evidence, in combination with other data, revealed the sequence of events and identities of species involved in oxidative transformation of 1 ; the carbon-skeleton rearrangement of the first transient intermediate 4 must occur by a 1,2-carboxylate
通过同位素位置标记研究了尿酸的碱性高锰酸盐氧化(1),特别是转化为尿烷酸酯(7)和尿囊素(3)的后期。开发出的用于区分这些产品中的羰基和α-氨基碳原子的清晰降解程序明确证明了7的羧基碳和3的4-羰基碳起源于尿酸的C(5)(1) 。对于该反应提出的机制均未预料到该结果。同位素标记的证据与其他数据结合,揭示了1的氧化转化所涉及的物种的事件和身份的序列。第一过渡中间体4的碳骨架重排必须发生1,