[1]JournaloftheAmericanChemicalSociety,1980,vol.102,p.7012
[2]JournaloftheChemicalSociety,DaltonTransactions,1988,p.93-96
[3]Patent:US4493533,1985,A
[1]TetrahedronLetters,2000,vol.41,p.5653-5657
18721-61-4
5755-56-6
1564616-21-2