[1]Patent:WO2011/42797,2011,A1,.Locationinpatent:Page/Pagecolumn69-70
[1]Heterocycles,1994,vol.38,p.1375-1382
[1]Heterocycles,1994,vol.38,p.1375-1382
[1]Patent:US6391865,2002,B1.Locationinpatent:Pagecolumn57-58
[1]Patent:US2005/239781,2005,A1.Locationinpatent:Page/Pagecolumn88-89
[1]Patent:US5714438,1998,A