Synthesis and Biological Evaluation of 1,3-Oxathiolane 5-Azapyrimidine, 6-Azapyrimidine, and Fluorosubstituted 3-Deazapyrimidine Nucleosides
作者:Mao-Chin Liu、Mei-Zhen Luo、Diane E. Mozdziesz、Tai-Shun Lin、Ginger E. Dutschman、Elizabeth A. Gullen、Yung-Chi Cheng、Alan C. Sartorelli
DOI:10.1080/15257770008035011
日期:2000.3
(2R,5S)-5-Amino-2-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-1,2,4-triazine-3(2H)-one (8) and (2R,5R)-5-amino-2-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-1,2,4-triazine-3(2H)-one (9) have been synthesized via a multi step procedure from 6-azauridine. (2R,5S)-4-Amino-1-[2-(hydroxymethyl)-1, 3-oxathiolan-5-yl]-1, 3, 5-triazine-2(1H)-one (11) and (2R,5R)-4-amino-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-1,3,5-triazine-2(1H)-one (12), and the fluorosubstituted 3-deazanucleosides (19-24) have been synthesized by the transglycosylation of (2R,5S)-1-2-[[(tert-butyldiphenylsilyl) oxy]methyl]-1,3-oxathiolan-5-yl}cytosine (2) with silylated 5-azacytosine and the corresponding silylated fluorosubstituted 3-deazacytosines, respectively, in the presence of trimethylsilyl trifluoromethanesulfonate as the catalyst in anhydrous dichloroethane, followed by deprotection of the blocking groups. These compounds were tested in vitro for cytotoxicity against L1210, B16F10, and CCRF-CEM tumor cell lines and for antiviral activity against HIV-1 and HBV.
(2R,5S)-5-氨基-2-[2-(羟甲基)-1,3-氧硫杂环烷-5-基]-1,2,4-三嗪-3(2H)-酮 (8) 和 (2R,5R)-5-氨基-2-[2-(羟甲基)-1,3-氧硫杂环烷-5-基]-1,2,4-三嗪-3(2H)-酮 (9) 是通过从6-氮杂尿苷出发的多步合成过程制备得到的。此外,(2R,5S)-4-氨基-1-[2-(羟甲基)-1,3-氧硫杂环烷-5-基]-1,3,5-三嗪-2(1H)-酮 (11) 和 (2R,5R)-4-氨基-1-[2-(羟甲基)-1,3-氧硫杂环烷-5-基]-1,3,5-三嗪-2(1H)-酮 (12),以及含氟取代的3-去aza核苷 (19-24),是通过在无水二氯乙烷中使用三甲基硅烷磺酰氟作为催化剂,分别将(2R,5S)-1-2-[[(叔丁基二苯基)硅基]氧]甲基}-1,3-氧硫杂环烷-5-基胞嘧啶 (2) 与硅基化的5-氮杂胞嘧啶和相应的硅基化含氟取代的3-去aza胞嘧啶发生转糖苷作用后,进一步脱除保护基团而制备得到的。这些化合物在体外对L1210、B16F10和CCRF-CEM肿瘤细胞系进行了细胞毒性测试,并对HIV-1和HBV进行了抗病毒活性测试。