[1]Heterocycles,1996,vol.43,p.519-522
[2]ACSChemicalBiology,2018,vol.13,p.1380-1387
[3]LiebigsAnnalenderChemie,1983,p.1510-1523
[4]Synthesis,2012,vol.44,p.2249-2254
[5]Patent:US2012/322978,2012,A1.Locationinpatent:Page/Pagecolumn15
[6]Patent:WO2013/12961,2013,A2.Locationinpatent:Paragraph00354;00355;00359
[7]Patent:WO2019/167973,2019,A1.Locationinpatent:Paragraph0080
[1]Heterocycles,1993,vol.35,p.997-1004
[1]ChemicalandPharmaceuticalBulletin,1991,vol.39,p.1860-1862
[1]LiebigsAnnalenderChemie,1983,vol.NO.9,p.1533-1540
[1]LiebigsAnnalenderChemie,1983,vol.NO.9,p.1533-1540