由3-氰基-4合成三环核苷8-氨基-4-甲硫基-6-甲基-2-(β-D-呋喃呋喃糖基)-1,2,3,5,6,7-六氮杂ena烯(3), 6-双(甲硫基)-1-(β-D-呋喃呋喃糖基)吡唑并[3,4- d ]嘧啶(1)。尝试合成8-氨基-6-甲基-2-(β-D-呋喃呋喃糖基)-1 H -2,6-二氢-1,2,3,5,6,7-六氮杂ena烯(5)([aza 6-氨基-4-甲基-8-(β-d-D-呋喃核糖基)-1,3,4,5,8-pentaazaacenaphthylene(TCN)],这是一种有效的抗肿瘤剂),由治疗的模拟3与阮内镍没有提供所需的TCN的氮杂类似物。取而代之的是,确定了3的哒嗪部分的还原性切割。产生4-甲基氨基-6-甲硫基-1-(β-D-呋喃呋喃糖基)-1 H-吡唑并[3,4- d ]嘧啶-3-甲am(6)。假设溶解度在还原步骤中的问题,对异亚丙基衍生物3,8-氨基-6-甲基-4-甲硫基-2-(2
An unusual reductive ring-opening of the 1,2,3,5,6,7-hexaazaacenaphthylene ring system
作者:Andrew M. Kawasaki、Leroy B. Townsend
DOI:10.1016/s0040-4039(00)99223-2
日期:1989.1
Studies on an unexpected reaction involving a reductive cleavage of the pyridazine moiety of a tricyclic heterocycle are described. Structure assignments for the products obtained from the reductive cleavage were made using physicochemical methods.