Synthesis and in vitro antitumor activity of new butenolide-containing dithiocarbamates
作者:Xiao-Juan Wang、Hai-Wei Xu、Lin-Lin Guo、Jia-Xin Zheng、Bo Xu、Xiao Guo、Chen-Xin Zheng、Hong-Min Liu
DOI:10.1016/j.bmcl.2011.03.029
日期:2011.5
designed and synthesized. Their anti-tumor activity in vitro was evaluated. Among them compound I-14 exhibited broad spectrum anti-cancer activity against five human cancer cell lines with IC50 <30 μM. Structure–activity relationship analysis showed that the introduction of dithiocarbamate side chains on the C-3 position of butenolide was crucial for anti-tumor activity.
Isolation and synthesis of β-miroside an antifungal furanone glucoside from Prumnopitys ferruginea
作者:Stephen D. Lorimer、Simon D. Mawson、Nigel B. Perry、Rex T. Weavers
DOI:10.1016/0040-4020(95)00352-9
日期:1995.6
The bioactivity-directed isolation and structural determination of β-miroside 3-[(β-D-glucopyranosyloxy)-methyl]-2(5H)-furanone} from the New Zealand gymnosperm Prumnopitysferruginea, is described. Picein 4-(β-D-glucopyranosyloxy)acetophenone} was also isolated. Syntheses of β-miroside, its α-anomer and an isomer with an exocyclic double bond, are described, along with an unusual reaction of an
Reductive Carbonylation of Acetylenes under Water-Gas Shift Reaction Conditions. Synthethis of Furan-2(5H)-ones from Terminal and Non-substituted Acetylenes
Under water-gas reaction conditions terminal and non-substituted acetylenes are selectively converted into furan-2(5H)-ones by catalysis with a rhodium carbonyl cluster.
A highly efficient route was developed to synthesize (−)-8-epigrosheimin in four steps from aldehyde 2 based on a substrate-controlled method. The key steps of the synthesis included (1) a stereo- and regioselective allylation addition, (2) an intramolecular translactonization, and (3) an aldehyde-ene cyclization.