shown to inhibit Sindbis virus, with IC50 values of 0.5, 1.9, and 6.1 μM, respectively. The latter three compounds also had significant synergistic effects against SFV when combined with 3′-amino-3′-deoxyadenosine. In contrast to previous work on other viruses, the antiviral activity of 13 was mapped to take place in virus replication phase. The efficacy was also shown to be independent of external
作者:Nina I. Uvarova、Lyubov N. Atopkina、Georgi B. Elyakov
DOI:10.1016/s0008-6215(00)85361-6
日期:1980.8
Synthesis of O-Vinyl Ethers of Pentacyclic Triterpene Alcohols and Lupane-Type Oximes
作者:N. G. Komissarova、A. V. Orlov、O. V. Shitikova
DOI:10.1007/s10600-020-03067-2
日期:2020.5
Vinylation by acetylene of lupane-type pentacyclictriterpene C-28- and C-3β-alcohols and C-20-oximes in superbase solutions synthesized the corresponding C-28- and C-3β-O-vinyl ethers and C-20-O-vinyloximes. The reaction of 3β,28-dimethoxy-29-norlupan-20-one with acetylene in superbase KOH–DMSO produced a derivative with an N-vinylpyrrole ring in the C-19 side chain.