[1]Giannella,M.etal.[Phytochemistry,1971,vol.10,p.539-544]
[2]Sato,Kazuo;Honma,Toyokuni;Sugai,Soji[AgriculturalandBiologicalChemistry,1985,vol.49,#12,p.3563-3568]
[1]Hlasta,DennisJ.;Ackerman,JamesH.;Court,JohnJ.;Farrell,RobertP.;Johnson,JudithA.;etal.[JournalofMedicinalChemistry,1995,vol.38,#23,p.4687-4692]
[1]IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1999,vol.38,p.148-151
[1]Locationinpatent:experimentalpartHajdok,Szilvia;Conrad,Juergen;Leutbecher,Heiko;Strobel,Sabine;Schleid,Thomas;Beifuss,Uwe[JournalofOrganicChemistry,2009,vol.74,#19,p.7230-7237]