Synthesis of Cerprgin.
作者:Keizo MATSUO、Takahiko ARASE
DOI:10.1248/cpb.42.715
日期:——
Cerpegin (1), a new pyridone alkaloid, was synthesized starting from the Michael reaction of phenylthioacetonitrile (2) and 2-methoxycarbonyl-4, 4-dimethyl-2-buten-4-olide (3) in five steps. Catalytic hydrogenation of a nitrile group in the presence of a conjugated carbon-carbon double bond was performed by addition of 1 eq of conc. HCl.
Cerpegin (1)是一种新的吡啶酮生物碱,采用五个步骤合成,起始原料为苯基硫代乙腈(2)和2-甲氧基羧基-4, 4-二甲基-2-丁烯-4-内酯(3)的迈克尔反应。在共轭碳-碳双键存在的情况下,通过加入1当量的浓盐酸对氰基进行催化氢化反应。