[1]JournalofOrganicChemistry,1989,vol.54,p.4844-4848
[1]MolecularCrystalsandLiquidCrystals(1969-1991),1982,vol.82,p.243-246
[1]JournalofAntibiotics,1998,vol.51,p.560-569
[1]OrganicLetters,2002,vol.4,p.3071-3073
[1]BioorganicandMedicinalChemistry,2004,vol.12,p.2553-2570