Synthesis and biological activity of a novel adenosine analog 3-.beta.-D-ribofuranosylthieno[2,3-d]pyrimidin-4-one
作者:Vemanna D. Patil、Dean S. Wise、Linda L. Wotring、Linda C. Bloomer、Leroy B. Townsend
DOI:10.1021/jm00382a006
日期:1985.4
heterocycle thieno[2,3-d]pyrimidin-4-one (1) with 1-O-acetyl-2,3,5-tri-O-benzoyl-beta-D-ribofuranose (2a) in the presence of a Lewis acid or with 2,3,5-tri-O-acetyl-D-ribofuranosyl bromide (2b) in the presence of mercuric oxide and mercuric bromide. The site of ribosylation and anomeric configuration of this nucleoside were established by 1H NMR. The synthesis of 3-beta-D-ribofuranosylpyrrolo[2,3-d]pyrimidin-4-one
通过使甲硅烷基化的杂环噻吩并[2,3-d]嘧啶-4-酮(1)与1-O-乙酰基-2,3,5-三-O-苯甲酰基-β-缩合来制备标题核苷5。在路易斯酸存在下或在2,3,5-三-O-乙酰基-D-呋喃呋喃糖基溴化物(2b)的存在下的D-核呋喃糖(2a)在氧化汞和溴化汞的存在下。通过1 H NMR确定该核苷的核糖基化位点和异头构型。3-β-D-呋喃核糖基吡咯并[2,3-d]嘧啶-4-酮(8),1-苯基-5-β-D-呋喃核糖基吡唑并[3,4-d]嘧啶-4-酮( 9),5-甲基-3-β-D-呋喃呋喃糖基噻吩并[2,3-d]嘧啶-4-一(10)和2-甲基-6-β-D-核呋喃糖基三唑并[5,4-d]嘧啶还描述了-7-一(11)。标题化合物在体外以3 X 10(-5)M的ID50抑制鼠L-1210白血病细胞的生长。尿苷,胞苷,胸苷,脱氧胞苷,胞嘧啶,次黄嘌呤或尿苷和次黄嘌呤并不能防止生长抑制。另一方面,抑制腺苷激酶被10(-7)M