作者:Carlos Aydillo、Nuria Mazo、Claudio D. Navo、Gonzalo Jiménez‐Osés
DOI:10.1002/cbic.201800758
日期:2019.5.15
the chemical synthesis and use of highly reactive 4-methylenoxazol-5(4H)-ones from serine is presented. These dehydroalanine derivatives, which resemble the natural 4-methylidenimidazole-5-one (MIO) cofactor present in lyases and aminomutases, undergo rapid reaction with carbon nucleophiles such as silyl enol ethers, as well as cycloaddition reactions with diazo compounds and reactive dienes, under
首次提出了一种简单的方法,用于化学合成和使用来自丝氨酸的高反应性4-甲烯恶唑-5(4H)-酮。这些脱氢丙氨酸衍生物类似于裂解酶和氨基变位酶中存在的天然4-甲叉基咪唑-5-酮(MIO)辅助因子,在以下条件下会与碳亲核试剂(如甲硅烷基烯醇醚)快速反应,并与重氮化合物和反应性二烯进行环加成反应。在非常温和的条件下,无需任何金属催化剂或环应变活化,因此具有生物共轭的潜力。