Synthesis and Biological Evaluation
of 6-Substituted Purinylcarbanucleosides with a Cyclopenta[<i>b</i>]thiophene Pseudosugar
作者:José Blanco、Paula Abeijón、Olga Caamaño、Franco Fernández、Marcos García、Xerardo García-Mera、José Rodríguez-Borges、Jan Balzarini、Erik De Clercq
DOI:10.1055/s-0029-1216908
日期:——
The first members of a new family of heterocarbobicyclic nucleoside analogues have been synthesized from the cis/trans mixture of (4-amino-5,6-dihydro-4H-cyclopenta[b]thiophen-6-yl)methanols (cis/trans -7). The separation of the cis and trans intermediates during the preparation of the 6-chloropurine derivatives allowed a separate preparation of the purine heterocarbanucleosides cis-10 and trans-11, from which cis-12-14 and trans-16-18 were obtained by replacement of the 6-chloro substituent with amino, hydroxy, and cyclopropylamino groups. Additionally, the 6-phenylpurinyl analogues cis-15 and trans- 19 were prepared from cis-10 and trans-11 using Suzuki-Miyaura methodology. In tests of antiviral and cytostatic activities, compound 11 showed cytostatic activity against Molt4/C8 human T lymphoblastic leukemia cells. Antiviral activity was shown by compounds 15 and 19 against Punta Toro virus and Coxackie virus B4 (compound 11).
我们从(4-氨基-5,6-二氢-4H-环戊并[b]噻吩-6-基)甲醇(顺式/反式-7)的顺式/反式混合物中合成了杂环双环核苷类似物新家族的第一批成员。在制备 6-氯嘌呤衍生物的过程中分离顺式和反式中间体,可以分别制备顺式-10 和反式-11 嘌呤杂环核苷,并通过用氨基、羟基和环丙基氨基取代 6-氯取代基,得到顺式-12-14 和反式-16-18。此外,顺式-10 和反式-11 采用铃木-宫浦法制备出了 6-苯基嘌呤类似物顺式-15 和反式-19。在抗病毒和细胞抑制活性测试中,化合物 11 对 Molt4/C8 人类 T 淋巴细胞白血病细胞具有细胞抑制活性。化合物 15 和 19 对 Punta Toro 病毒和 Coxackie 病毒 B4(化合物 11)具有抗病毒活性。