[1]JournalofOrganicChemistry,1996,vol.61,p.7189-7191
[2]JournalofOrganicChemistry,1994,vol.59,p.1771-1778
[3]JournaloftheChemicalSociety.Chemicalcommunications,1993,p.1216-1218
[1]JournalofOrganicChemistry,1994,vol.59,p.1771-1778
[1]JournaloftheChemicalSociety.Chemicalcommunications,1993,p.1216-1218
[1]JournalofOrganicChemistry,1994,vol.59,p.1771-1778
[1]JournalofOrganicChemistry,1996,vol.61,p.7189-7191