Synthesis and Molecular Structure of New Unsaturated Analogues of Nucleotides Containing Six-Membered Rings
作者:Valery�K. Brel、Vitaly�K. Belsky、Adam�I. Stash、Valery�E. Zavodnik、Peter�J. Stang
DOI:10.1002/ejoc.200400523
日期:2005.2
presence of cesium carbonate afforded new acyclic analogs of nucleotides containing a 1,2-alkadienic skeleton (17−24). Intramolecular cyclization of the alkoxides tethered to the allenyl moiety yielded dihydropyrans 33−38 and dihydrofurans 39 and 40. Dealkylation of the dihydropyrans led to the corresponding phosphonic acids. The molecular structures of new nucleotide analogs 33 and 36 were determined
在碳酸铯存在下,1-(氯甲基)-3-(二乙氧基膦酰基)丙二烯15和16与嘌呤和嘧啶碱的反应提供了含有1,2-链二烯骨架(17-24)的核苷酸的新无环类似物。连接到丙二烯基部分的醇盐的分子内环化产生二氢吡喃 33-38 和二氢呋喃 39 和 40。二氢吡喃的脱烷基化产生相应的膦酸。新的核苷酸类似物 33 和 36 的分子结构通过单晶 X 射线分析确定。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)