Synthesis and biological evaluation of unsaturated keto and exomethylene d-arabinopyranonucleoside analogs: Novel 5-fluorouracil analogs that target thymidylate synthase
作者:Niki Tzioumaki、Stella Manta、Evangelia Tsoukala、Vande Voorde Johan、Sandra Liekens、Dimitri Komiotis、Jan Balzarini
DOI:10.1016/j.ejmech.2011.01.005
日期:2011.4
The synthesis of pyrimidine unsaturated keto and exomethylene arabinopyranonucleoside analogs as potential antitumor and antiviral agents is described. Commercially available 1,2,3,4-tetra-O-acetyl-d-arabinopyranose (1) was condensed with silylated thymine, uracil, 5-fluorouracil, N4-benzoyl cytosine and 5-(trifluoromethyl)uracil, respectively, deacetylated and acetylated to afford 1-(3,4-O-isopro
描述了作为潜在的抗肿瘤和抗病毒剂的嘧啶不饱和酮和外亚甲基阿拉伯吡喃核苷类似物的合成。可商购的1,2,3,4-四- ö乙酰基d -arabinopyranose(1)与甲硅烷基化胸腺嘧啶,尿嘧啶,5-氟尿嘧啶,冷凝Ñ 4分别-苯甲酰胞嘧啶和5-(三氟甲基)尿嘧啶,脱乙酰并乙酰化,得到1-(3,4- O-异亚丙基-α - d-阿拉伯吡喃糖基)嘧啶类似物4。研究了两种不同的合成路线,将化合物4转化为新的1-(2,3,4-三苯氧基-2-亚甲基-α胸腺嘧啶(10a),尿嘧啶(10b),5-氟尿嘧啶(10c)和N 4-苯甲酰基胞嘧啶(10d)的-pent-3-enopyranosyl)核苷衍生物。只有第一种方法可以承受10d的导数。10d的脱苯甲酰化得到1-(2,3,4-三苯氧基-2-亚甲基-α-戊-3-烯吡喃糖基)胞嘧啶(10f)。第一种方法还导致了2-酮3,4-不饱和类似物9。新的类似物在细胞培养