[1]Patent:US4988699,1991,A
[2]Patent:WO2007/25307,2007,A2.Locationinpatent:Page/Pagecolumn303-304
[3]Patent:WO2008/106139,2008,A1.Locationinpatent:Page/Pagecolumn473
[1]Ren,Wenlong;Chu,Jianxiao;Sun,Fei;Shi,Yian[OrganicLetters,2019,vol.21,#15,p.5967-5970]
[2]CurrentPatentAssignee:CHANGZHOUUNIVERSITY-CN110423191,2019,ALocationinpatent:Paragraph0119-0122