参考文献:Journal of the American Chemical Society,2014,vol.136,#18,p.6754-6762;Tetrahedron,2012,vol.68,#2,p.697-704;Organic letters,2002,vol.4,#8,p.1335-1338;Organic Letters,2010,vol.12,#22,p.5306-5309;Chemistry - A European Journal,2016,vol.22,#47,p.16912-16919;Journal of Organic Chemistry,2006,vol.71,#16,p.6171-6177;Journal of Fluorine Chemistry,2018,vol.211,p.100-108;Tetrahedron Letters,1996,vol.37,#3,p.311-314;ACS Medicinal Chemistry Letters,2013,vol.4,#2,p.264-268;Patent:WO2017/201283,2017,A1.Location in patent:Page/Page column 32;33