Highly Regioselective Addition of Organozinc Reagents to 2-Oxo-1,2-dihydropyrimidine-5-carboxylates Activated by BF<sub>3</sub>·OEt<sub>2</sub>: Synthesis of 2-Oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylates
作者:Kamaljit Singh、Rakesh Chopra
DOI:10.1002/ejoc.201300539
日期:2013.9
The incorporation of alkyl as well as phenyl groups at C-4, a key position of 2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylates, responsible for antagonist/agonist switching of the calcium channel blocking activity of these compounds, has been achieved by the addition of organozinc reagents to the corresponding 2-oxo-1,2-dihydropyrimidine-5-carboxylate derivatives catalysed by BF3OEt2.
在 C-4 处引入烷基和苯基,这是 2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylates 的关键位置,负责这些钙通道阻断活性的拮抗剂/激动剂转换通过将有机锌试剂添加到由 BF3OEt2 催化的相应 2-oxo-1,2-dihydropyrimidine-5-carboxylate 衍生物中来实现。