Synthesis of 2-Bromomethyl-3-Hydroxy-2-Hydroxymethyl-Propyl Pyrimidine and Theophylline Nucleosides Under Microwave Irradiation. Evaluation of Their Activity Against Hepatitis B Virus
作者:E. S. H. El Ashry、N. Rashed、A. Abdel-Rahman、L. F. Awad、H. A. Rasheed
DOI:10.1080/15257770600793919
日期:2006.9
(1a) and its 5(6)-alkyl derivatives 1b–d as well as theophylline (7) with 2,2-bis(bromomethyl)-1,3-diacetoxypropane (2) under microwave irradia-tion gave the corresponding acyclonucleosides 1-[(3-acetoxy-2-acetoxymethyl-2-bromomethyl)prop-1-yl]-2-methyl-thio pyrmidin-4(1H)-ones 3a–d and 7-[(3-acetoxy-2-acetoxymethyl-2-bromomethyl)prop-1-yl]theophylline (8), which upon further irradiation gave the double-headed
用2,2-双(溴甲基)-1,3-二乙酰氧基丙烷将2-甲硫基嘧啶-4(1H)-一(1a)及其5(6)-烷基衍生物1b-d和茶碱(7)烷基化( 2)在微波辐射下得到相应的无环核苷1-[((3-乙酰氧基-2-乙酰氧基甲基-2-溴甲基)丙-1-基] -2-甲基-硫代嘧啶-4(1H)-酮3a–d和7-[(3-乙酰氧基-2-乙酰氧基甲基-2-溴甲基)丙-1-基]茶碱(8),在进一步辐射下,得到双头无环核苷1,1'-[(2,2-二乙酰氧基甲基) )-1,3-亚丙基]-双[(2-(甲硫基)-嘧啶-4(1H)-ones] 4a–c和7,7'-[(2,2-二乙酰氧基甲基)-1,3- (9)。通过甲醇钠的作用获得了脱乙酰基衍生物,并评估了脱乙酰基核苷对乙型肝炎病毒的活性。 化合物5b显示出对HBV的中等抑制活性,具有轻度的细胞毒性。