[1]Patent:US2004/248953,2004,A1.Locationinpatent:Page24
[2]Patent:US2004/248954,2004,A1.Locationinpatent:Page12
[3]BioorganicandMedicinalChemistryLetters,1999,vol.9,p.2539-2544
[1]BioorganicandMedicinalChemistryLetters,2011,vol.21,p.1084-1088
1135-24-6
15854-56-5
16909-11-8
17570-26-2
2309-07-1
2316-26-9