Non-classical antifolates, 5-(N-phenylpyrrolidin-3-yl)-2,4,6-triaminopyrimidines and 2,4-Diamino-6(5H)-oxopyrimidines, synthesis and antitumor studies
作者:Yen-Lin Huang、Chyun-Feng Lin、Yi-Jen Lee、Wei-Wei Li、Ting-Chou Chao、Valeriy A. Bacherikov、Kuo-Tung Chen、Chin-Ming Chen、Tsann-Long Su
DOI:10.1016/s0968-0896(02)00238-9
日期:2003.1
growth. Among these compounds, 5-(4-fluoro and 4-chlorophenyl)-2,4,6-triaminopyrimidines (25e and 25h, respectively) were more potent than methotrexate (MTX) in inhibiting of H23/0.3 cell growth. These compounds inhibit the folate metabolic pathways as indicated by tritium release from [5-3H]deoxyuridine in MTX sensitive human fibrosarcoma HT-1080 cells. Dihydrofolate reductase is the major target for 25f
一系列非经典抗叶酸剂,即5-(N-苯基吡咯烷-3-基)-2,4,6-三氨基嘧啶(25a-i)和2,4-二氨基-(N-苯基吡咯烷-3-基)-合成了6(5H)-氧嘧啶(26a,b,c,f,h,i),并对其体外细胞毒性进行了评估。苯胺衍生物与1,4-二溴-2-丁醇反应生成1-苯基-3-吡咯烷醇(19a-i),将其氧化为吡咯烷-3-酮(20a-i)。20a-i与丙二腈或氰基乙酸乙酯的Knoevenagel反应得到3-(二氰基亚甲基)-(21a-i)和3- [氰基(乙氧羰基)亚甲基]-吡咯烷(22a,b,c,f,h,i),分别还原成相应的3-(二氰基)甲基-或3- [氰基(乙氧基羰基)甲基)]吡咯烷(分别为23a-i和24a,b,c,f,h,i)。23a-i或24a,b,c,f,h,i与胍的缩合得到目标化合物。根据这些化合物抑制各种人类肿瘤的能力(人类结肠腺癌COLO 205,肺癌H23及其抗阿霉素的细胞系H23