The fused triazole derivatives,which is an important inhibitors of the dipeptidyl peptidase-Ⅳ enzyme(DPP-Ⅳ),can be used for the treatment or prevention of type 2 diabetes.A new fused triazole derivatives of 3-oxo-3-...The fused triazole derivatives,which is an important inhibitors of the dipeptidyl peptidase-Ⅳ enzyme(DPP-Ⅳ),can be used for the treatment or prevention of type 2 diabetes.A new fused triazole derivatives of 3-oxo-3-[3-trifluoromethyl-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-phenylpropan-1-amine was synthesized from 2-chloropyrazine and benzaldehyde by hydrazinolysis,trifluoroacetylation,cyclization,hydrogenation,condensation and deprotection reaction.The structures of the compound and its intermediates were determined by IR,NMR,and MS.展开更多
Title Compond-5 chloro 2,4,6 trifluoro 1,3 bezenedicarbonitrile was prepared by fluoration exchange reaction under comparatively mild condition with yield 81%;various reactive conditions,as well as its possible by pro...Title Compond-5 chloro 2,4,6 trifluoro 1,3 bezenedicarbonitrile was prepared by fluoration exchange reaction under comparatively mild condition with yield 81%;various reactive conditions,as well as its possible by products,were discussed in detail.The structure of the target compound was confirmed by excluding its two isomers based on IR,MS, 13 CNMR,and 19 FNMR data.展开更多
文摘The fused triazole derivatives,which is an important inhibitors of the dipeptidyl peptidase-Ⅳ enzyme(DPP-Ⅳ),can be used for the treatment or prevention of type 2 diabetes.A new fused triazole derivatives of 3-oxo-3-[3-trifluoromethyl-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-phenylpropan-1-amine was synthesized from 2-chloropyrazine and benzaldehyde by hydrazinolysis,trifluoroacetylation,cyclization,hydrogenation,condensation and deprotection reaction.The structures of the compound and its intermediates were determined by IR,NMR,and MS.
文摘Title Compond-5 chloro 2,4,6 trifluoro 1,3 bezenedicarbonitrile was prepared by fluoration exchange reaction under comparatively mild condition with yield 81%;various reactive conditions,as well as its possible by products,were discussed in detail.The structure of the target compound was confirmed by excluding its two isomers based on IR,MS, 13 CNMR,and 19 FNMR data.
