Carbovir-Related Compounds and Phosphonate Analogues
摘要:
Detailed syntheses of carbovir-related cis-(2-(9H-Purin-9-yl)-3-cyclopentene]-1-methanols and phosphonates of selected analogues are presented. Our interest in this chemistry stems from antiviral activity shown by closely related compounds. Access to the key beta-lactam was achieved by the reaction of monocyclopentadiene with chlorosulfonyl isocyanate at -78 degrees C rather than at the reported, ambient temperature, where only the less ring-strained and more stable gamma-lactam is formed.
Synthesis and Anti-HIV Activity of Novel Cyclopentenyl Nucleoside Analogues of 8-Azapurine
作者:Pilar Canoa、María J. González-Moa、Marta Teijeira、Carmen Terán、Eugenio Uriarte、Christophe Pannecouque、Erik De Clercq
DOI:10.1248/cpb.54.1418
日期:——
Novel nucleoside analogues of structure 3-5 were synthesized starting from (+/-)-cis-2-amino-3-cyclopentenylmethanol (1). The chlorine derivative 3 inhibited both HIV-1 and HIV-2 replication in MT-4 cells with IC(50) values of 10.67 microM and of 13.79 microM, respectively.
The total synthesis of (±)-naphthyridinomycin. I. Preparation of a key tricyclic lactam intermediate.
作者:David A. Evans、Scott A. Biller
DOI:10.1016/s0040-4039(00)98338-2
日期:1985.1
A synthetic strategy for the preparation of the quinone antibiotic naphthyridinomycin is outlined. An efficient synthesis of key tricyclic intermediate 6 is described.
A Short and Convenient Synthesis of New 1,2-Disubstituted Carbocyclic Nucleoside Analogues of Pyrimidine Based on a Cyclopentene Ring
作者:C. Terán、M. J. González-Moa、P. Besada、M. Teijeira、E. Uriarte
DOI:10.1055/s-2004-815975
日期:——
The synthesis of a new series of 1,2-disubstituted carbonucleoside analogues, pyrimidines of general structure I, is reported. These compounds were prepared in good yield from (′)-6-azabicyclo[3.2.0]hept-3-en-7-one (1) via two synthetic routes that involve NaBH 4 -mediated C-N bond cleavage as the key step. The uracil derivative Ia was halogenated with Cl, Br, and I at position 5 by treatment with
报道了一系列新的 1,2-二取代碳核苷类似物,即通式 I 嘧啶的合成。这些化合物是由 (')-6-azabicyclo[3.2.0]hept-3-en-7-one (1) 通过两种合成路线以高产率制备的,其中 NaBH 4 介导的 CN 键断裂是关键步骤。通过用相应的 N-卤代琥珀酰亚胺处理,尿嘧啶衍生物 Ia 在 5 位被 Cl、Br 和 I 卤化。
Nucleoside Analogues of Purine with a 1,2-Disubstituted Cyclopentene Ring
One, two-disubstituted carbonucleoside analogues of purine with unsaturated carbocyclic were synthesized by construction of the heterocyclic base about the primary amino group of the amino alcohol 4 intermediate, which was also synthesized in good yield starting from cyclopentadiene.