[1]Chen,Qing-Yun;Wu,Sheng-Wen[JournalofOrganicChemistry,1989,vol.54,#13,p.3023-3027]
[1]Mishra,M.;Das,B.N.;Sinha,B.K.[IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1981,vol.20,#8,p.728-731]
[2]Mishra,M.;Das,B.N.;Sinha,B.K.[IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1981,vol.20,#8,p.728-731]
[3]Mishra,M.;Das,B.N.;Sinha,B.K.[IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1981,vol.20,#8,p.728-731]
[1]Cho,ChanSik;Baek,DongYeol;Shim,SangChul[JournalofHeterocyclicChemistry,1999,vol.36,#1,p.289-291]