Nucleosides. CXXXV. Synthesis of some 9-(2-deoxy-2-fluoro-.BETA.-D-arabinofuranosyl)-9H-purines and their biological activities.
作者:Chung K. CHU、Jasenka MATULIC-ADAMIC、Jai-Tung HUANG、Ting-Chao CHOU、Joseph H. BURCHENAL、Jack J. FOX、Kyoichi A. WATANABE
DOI:10.1248/cpb.37.336
日期:——
silyl procedure afforded the protected 2-acetamido-6-chloropurine nucleoside which served as the precursor for both the guanine and 6-thioguanine nucleosides (VI, 2'-F-ara-G and VII, 2'-F-ara-TG, respectively). Thus, alkaline hydrolysis of the precursor gave VI. Thiourea treatment prior to alkaline hydrolysis gave VII. The new nucleoside, 2'-F-ara-G (VI) is found to be selectively toxic to human T-cell
合成了含有2'-脱氧-2'-氟-β-D-阿拉伯呋喃糖基部分的七个嘌呤核苷,并测试了它们的抗肿瘤活性。3-O-乙酰基-5-O-苯甲酰基-2-脱氧-2-氟-D-阿拉伯呋喃糖基溴化物(1)与N6-苯甲酰腺嘌呤在CH2Cl2中的直接缩合,然后将产物皂化,得到腺嘌呤核苷(I,2 -F-ara-A)。用HOAc中的NaNO 2脱除I,得到次黄嘌呤类似物(II,2'-F-ara-H)。通过汞法将1与6-氯嘌呤缩合,然后进行硫脲处理和产物皂化,制备6-硫嘌呤核苷(III,2'-F-ara-6MP)。III的甲基化得到6-SCH3类似物(IV)。III的阮内镍脱硫得到未取代的嘌呤核苷(V,2'-F-ara-P)。通过甲硅烷基方法将1-与2-乙酰氨基-6-氯嘌呤缩合,得到被保护的2-乙酰氨基-6-氯嘌呤核苷,其可用作鸟嘌呤和6-硫代鸟嘌呤核苷的前体(VI,2'-F-ara- G和VII,分别为2'-F-ara