Synthesis and Antibacterial Activity of a New Series of 2,3,5,7-Substituted-pyrido[2,3-d]pyrimidin-4(3H)-one Derivatives
作者:Lakshmi Narayana Bheemanapalli、Raghuram Rao Akkinepally、Shanthan Rao Pamulaparthy
DOI:10.1248/cpb.56.1342
日期:——
A new series of 2,3,5,7-substituted-pyrido[2,3-d]pyrimidin-4(3H)-one derivatives were prepared from 2-amino-N,6-substituted phenyl-4-(trifluoromethyl or methyl)nicotinamides. The key intermediate 2-amino-N,6-substituted phenyl-4-(trifluoromethyl or methyl)nicotinamides were synthesized from 2-bromo-N,6-disubstituted phenyl-4-(trifluoromethyl or methyl)nicotinamides as well as from ethyl-3-(3-dimet
由2-氨基-N,6-取代的苯基-4-(三氟甲基或2-氨基)制备新的2,3,5,7-取代的吡啶并[2,3-d]嘧啶-4(3H)-衍生物系列甲基)烟酰胺。关键中间体2-氨基-N,6-取代的苯基-4-(三氟甲基或甲基)烟酰胺是由2-溴-N,6-二取代的苯基-4-(三氟甲基或甲基)烟酰胺以及乙基-酰胺合成的2-氨基-4,6-取代的烟酸和取代的芳胺的3-(3-二甲基氨基丙基)-碳二亚胺(EDC)偶联。筛选所有合成的化合物对革兰氏+ ve和革兰氏-ve细菌的抗菌活性。化合物7c显示出对革兰氏+ ve和革兰氏-ve细菌更好的抗菌活性。