Synthesis of Alfaprostol and PGF<sub>2α</sub>through 1,4-Addition of an Alkyne to an Enal Intermediate as the Key Step
作者:Hannah Baars、Moritz J. Classen、Varinder K. Aggarwal
DOI:10.1021/acs.orglett.7b03057
日期:2017.11.3
the conjugate addition of an alkyne to a bicyclic enal, available in three steps by a proline-catalyzed aldol reaction of succinaldehyde. In the case of Alfaprostol, this resulted in the shortest synthesis reported to date. For PGF2α, this approach improved our previous route by making the 1,4-addition and ozonolysis more operationally simple.
兽药Alfaprostol和前列腺素PGF 2α已经在短短的九个步骤合成了。该策略涉及将炔烃共轭加成至双环烯醛,可通过脯氨酸催化的丁二醛醛醇缩合反应分三步获得。就阿法前列醇而言,这导致了迄今为止报道的最短的合成。对于PGF2α而言,该方法通过使1,4添加和臭氧分解操作更简单而改进了我们以前的方法。