[1]Ohloff,G.etal.[HelveticaChimicaActa,1977,vol.60,p.1161-1174]
[1]Kelkar,S.V.;Reddy,G.Bhaskar;Kulkarni,G.H.[IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1989,vol.28,#1-11,p.980-981]
[1]Bestmann,H.J.;Brosche,T.;Koschatzky,K.H.;Michaelis,K.;Platz,H.;et.al.[TetrahedronLetters,1980,vol.21,p.747-750]
[2]Kelkar,S.V.;Reddy,G.Bhaskar;Kulkarni,G.H.[IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1989,vol.28,#1-11,p.980-981]
[1]Bestmann,H.J.;Brosche,T.;Koschatzky,K.H.;Michaelis,K.;Platz,H.;et.al.[TetrahedronLetters,1980,vol.21,p.747-750]
[1]Kovalev,B.G.;Dzhumakulov,T.;Abduvakhabov,A.A.;Sadykov,A.S.[DokladyChemistry,1987,vol.297,#12,p.544-548][Dokl.Akad.NaukSSSRSer.Khim.,1987,vol.297,#6,p.1381-1386]
