Convergent, Fit-For-Purpose, Kilogram-Scale Synthesis of a 5-Lipoxygenase Inhibitor
作者:Stéphane G. Ouellet、Danny Gauvreau、Mark Cameron、Sarah Dolman、Louis-Charles Campeau、Gregory Hughes、Paul D. O’Shea、Ian W. Davies
DOI:10.1021/op200299p
日期:2012.2.17
Process research and development of a synthetic route towards a novel 5-lipoxygenase inhibitor is described. The synthetic route provided 1 in 27% yield in nine steps (seven steps in the longest linear sequence) and was performed on kilogram scale. The synthesis began with the preparation of the coumarin core via an efficient von Pechmann condensation. The triazole fragment was obtained via a regioselective
描述了合成新型5-脂氧合酶抑制剂的合成方法的工艺研究和开发。合成路线分9步(最长的线性顺序为7步)提供27%的收率1,并且以千克为单位进行。合成开始于通过有效的冯·佩希曼缩合制备香豆素核心。三唑片段是通过手性炔与香豆素叠氮化物之间的区域选择性铜催化的[3 + 2]环加成反应而获得的。