[1]Patent:US3954791,1976,A,
[1]JournalofHeterocyclicChemistry,1997,vol.34,#3,p.745-748
[2]Patent:US5972968,1999,A,
[3]IndianJournalofHeterocyclicChemistry,2010,vol.19,#4,p.345-348
[4]BioorganicandMedicinalChemistryLetters,2014,vol.24,#17,p.4250-4253
[5]Patent:CN104876878,2018,B,.Locationinpatent:Paragraph0076-0078
[1]MonatsheftefuerChemie,1931,vol.57,p.31,38
[2]Patent:US4072696,1978,A,
[1]JournaloftheAmericanChemicalSociety,1934,vol.56,p.117,118
[2]MonatsheftefuerChemie,1931,vol.57,p.31,38
[3]Patent:US3965113,1976,A,
[1]JournaloftheAmericanChemicalSociety,1934,vol.56,p.117,118
[2]MonatsheftefuerChemie,1931,vol.57,p.31,38
[3]JournaloftheAmericanChemicalSociety,1934,vol.56,p.117,118
[1]Patent:DE550327,1930, DRP/DRBPOrg.Chem.,
[1]MonatsheftefurChemie,1931,vol.67,p.31,40
[1]MonatsheftefurChemie,1931,vol.57,p.31,38
[2]Patent:US4072696,1978,A
[1]JournaloftheAmericanChemicalSociety,1934,vol.56,p.117,118
[2]MonatsheftefurChemie,1931,vol.57,p.31,38
[3]Patent:US3965113,1976,A
[1]JournaloftheAmericanChemicalSociety,1934,vol.56,p.117,118