Synthesis of some substituted tetrahydropyrimido[4,5-<i>b</i>][1,6]naphthyridines as potential antitumor agents
作者:Aleem Gangjee、Kwasi A. Ohemeng
DOI:10.1002/jhet.5570240125
日期:1987.1
1-benzyl-3-hydroxymethylene-4-piperidone afforded new tricyclic, linear disubstituted 6,7,8,9-tetrahydropyrimido[4,5-b][1,6]naphthyridines 4 and 5 respectively. Similar cyclocondensation of 11 with 1-benzoyl-1,2,3,6-tetrahydropyridine-5-carboxalde-hyde gave the corresponding benzoylated tetrahydropyrimido[4,5-b][1,6]naphthyridine 6. Debenzoylation of 6 afforded 7. 1-Benzyl-3-aminomethylene-4-piperidone when cyclocondensed
两个双取代的6-氨基嘧啶11和12与1-苄基-3-羟基亚甲基-4-哌啶酮的环缩合反应得到新的三环,线性双取代的6,7,8,9-四氢嘧啶基[4,5- b ] [1,6]萘啶分别为4和5。11与1-苯甲酰基-1,2,3,6-四氢吡啶-5-羧醛的类似环缩合反应得到相应的苯甲酰化的四氢嘧啶基[4,5- b ] [1,6]萘啶6。6的脱苯甲酰化得到7。当与11进行环缩合时,1-苄基-3-氨基亚甲基-4-哌啶酮也可得到4。线性结构由1 H nmr和13 C nmr建立。100μM下的4,5,6和7抑制了培养物中白血病L1210细胞的生长,抑制了约50%。