[1]EuropeanJournalofMedicinalChemistry,1981,vol.16,p.363-366
[1]TetrahedronLetters,1989,vol.30,p.2321-2324
[2]Patent:WO2015/114660,2015,A1.Locationinpatent:Page/Pagecolumn24
[3]BioorganicChemistry,2020,vol.102
[1]Synthesis,1993,p.1271-1290
[2]Synthesis,2005,p.559-564
[1]TetrahedronLetters,1989,vol.30,p.2321-2324
[1]TetrahedronLetters,1985,vol.26,p.3783-3786