Synthesis, antiproliferative, and antiviral activity of certain 4-aminopyrrolo[2,3-d]pyridazine nucleosides: an entry into a novel series of adenosine analogs
作者:Eric A. Meade、Linda L. Wotring、John C. Drach、Leroy B. Townsend
DOI:10.1021/jm00081a014
日期:1992.2
rrolo[2,3-d]pyridazine (2) and 4-amino-1-beta-D-arabinofuranosylpyrrolo[2,3-d]pyridazine (3), respectively. 4-Amino-3-bromo-1-beta-D-ribofuranosylpyrrolo[2,3-d]-pyridazine (4) was prepared by a bromination of 4-amino-1-(2,3,5-tri-O-benzyl-beta-D-ribofuranosyl)pyrrolo[2,3-d]pyri daz ine (12) and subsequent removal of the benzyl groups with boron trichloride. Compounds 2-4 were evaluated for antiproliferative
描述了新型杂环碱基修饰的腺苷类似物4-氨基吡咯并[2,3-d]哒嗪核苷的制备。其成功制备的关键是使用吡咯糖苷中间体3-氰基-2-甲酰基-1-(2,3,5-三-O-苄基-β-D-呋喃呋喃糖基)吡咯(11)和3-氰基-2-甲酰基-1-(2,3,5-三-O-苄基-β-D-阿拉伯呋喃糖基)吡咯(17)。用盐酸二氢肼处理11和17,然后用三氯化硼处理,得到4-氨基-1-β-D-呋喃呋喃糖基吡咯并[2,3-d]哒嗪(2)和4-氨基-1-β-D-阿拉伯呋喃糖基吡咯并[ 2,3-d]哒嗪(3)。通过4-氨基-1-(2,3,5-tri-O-的溴化)制备4-氨基-3-溴-1-β-D-呋喃呋喃糖基吡咯并[2,3-d]-哒嗪(4)。苄基-β-D-呋喃呋喃糖基)吡咯并[2,3-d] pyri dazine(12),然后用三氯化硼除去苄基。评价化合物2-4的抗增殖和抗病毒活性。结核菌素类似物(2)及其阿拉伯糖基衍生物