[1]King,J.F.;Loosmore,S.M.;Aslam,M.[JournaloftheAmericanChemicalSociety,1982,vol.104,p.7108]
[1]Matsuyama,Haruo;Izuoka,Akira;Kobayashi,Michio[Heterocycles,1985,vol.23,#8,p.1897-1900]
[1]King,J.F.;Loosmore,S.M.;Aslam,M.[JournaloftheAmericanChemicalSociety,1982,vol.104,p.7108]