investigating steric interactions between nucleosides and the enzymes that utilize them. To achieve the synthesis of C-cyclouridine, we developed a novel tandem radical 1,6-hydrogen transfer and cyclization of a 6-phenylselenouridine derivative, which gave 5,6-dihydro-C-cyclouridine in good yields. The synthesis of 6,5'-C-cyclouridine was accomplished by recovery of the double bond of 5,6-dihydro-C-cyclouridine
C-环核苷是构象模拟物,因此适用于研究核苷和利用它们的酶之间的空间相互作用。为了实现 C-
环尿苷的合成,我们开发了一种新型串联自由基 1,6-氢转移和 6-苯基
硒尿苷衍
生物的环化,以良好的收率得到 5,6-二氢-C-
环尿苷。6,5'-C-
环尿苷的合成是通过回收5,6-二氢-C-
环尿苷的双键和随后的脱保护来完成的。