[1]JournalofHeterocyclicChemistry,1990,vol.27,p.1973-1977
[2]JournalofHeterocyclicChemistry,1990,vol.27,p.1973-1977
[3]JournalofHeterocyclicChemistry,1990,vol.27,p.1973-1977
13754-02-4
1174374-29-8
1332530-94-5
1209829-99-1