Spiropentane Mimics of Nucleosides: Analogues of 2‘-Deoxyadenosine and 2‘-Deoxyguanosine. Synthesis of All Stereoisomers, Isomeric Assignment, and Biological Activity
作者:Hui-Ping Guan、Mohamad B. Ksebati、Yung-Chi Cheng、John C. Drach、Earl R. Kern、Jiri Zemlicka
DOI:10.1021/jo991030r
日期:2000.3.1
introduced into individual isomers 25a-25d via 6-chloropurine derivatives 26a-26d or 30a-30d. Ammonolysis of 26a-26d furnished the adenine isomeric series 12a-15a, whereas guanine derivatives 12b-15b were obtained by hydrolysis of 30a-30d with formic acid. The isomeric assignments followed from IR spectra of BOC-aminospiropentanes 24a-24d and NMR spectra of 12a-15a including NOE and (H,H) COSY. The proximal