Conformationally locked bicyclo[4.3.0]nonane carbanucleosides: synthesis and bio-evaluation
作者:Tony K. M. Shing、Anthony W. H. Wong、Huiyan Li、Z. F. Liu、Paul K. S. Chan
DOI:10.1039/c4ob01763c
日期:——
D-Ribose was converted into 3 novel carbobicyclic nucleosides bearing a bicyclo[4.3.0]nonane framework in 16–19 steps with 5–12% overall yields involving a Wittig olefination and an intramolecular Diels–Alder reaction as the key steps. The present synthesis also provides an efficient entry for chiral hydrindenones. The conformation studies of these carbanucleosides and their bio-evaluation as potential
Synthesis of Isonucleosides Related to AZT and AZU
作者:David F. Purdy、Lawrence B. Zintek、Vasu Nair
DOI:10.1080/15257779408013230
日期:1994.3
Approaches to 1,4-anhydro-3-azido-2,3-dideoxy-2-[3,4-dihydro-2,4-dioxo-5-methyl-1(2H)-pyrimidinyl]-D-arabinitol, and the related uracil derivative, have been developed. These conceptually new, optically active analogs of AZT, derived from 1,4-anhydro-D-ribitol, are among the first examples of regioisomeric analogs of AZT.