[1]JournalofHeterocyclicChemistry,2007,vol.44,#4,p.967-971
[2]OrganicLetters,2016,vol.18,#9,p.2180-2183
[3]Patent:WO2013/109882,2013,A1,.Locationinpatent:Page/Pagecolumn63
[4]Patent:US2016/83365,2016,A1,.Locationinpatent:Paragraph0841-0843
[5]JournalofOrganicChemistry,2017,vol.82,#5,p.2664-2671
[1]AngewandteChemie-InternationalEdition,2006,vol.45,#18,p.2958-2961
[1]DRP/DRBPOrg.Chem.,
[1]Synthesis(Germany),2013,vol.45,#13,p.1764-1784
[2]Patent:WO2013/192125,2013,A1,.Locationinpatent:Page/Pagecolumn89-90
[3]JournalofOrganicChemistry,2017,vol.82,#5,p.2664-2671
[1]Patent:DE839640,1949, DRP/DRBPOrg.Chem.,
[1]Patent:DE839640,1949, DRP/DRBPOrg.Chem.,
[1]ActaChemicaScandinavica,1993,vol.47,p.72-79
[1]ActaChemicaScandinavica,1993,vol.47,p.72-79