Total syntheses of polyamine amides PhTX-4.3.3 and PhTX-3.4.3: Reductive alkylation is a rapid, practical route to philanthotoxins
摘要:
Reductive alkylation allows a rapid and practical entry to the polyamine amide wasp toxin philanthotoxin-4.3.3. Philanthotoxin-3.4.3 has been prepared, in two steps, by the monoacylation of spermine. These polyamine amides are selective molecular pharmacological tools for cation channels gated by glutamic acid and acetylcholine, and may have potential as neuroprotective agents.
Total synthesis of modified jstx toxins: reductive alkylation is a practical route to hexahydropyrimidine polyamine amides
作者:Mark R. Ashton、Eduardo Moya、Ian S. Blagbrough
DOI:10.1016/0040-4039(95)01995-t
日期:1995.12
Reductive alkylation is a practical route for a total synthesis of regioisomers of spider toxin JSTX-3, a polyamine amide which is a selective glutamate receptor antagonist and may have potential as a neuroprotective agent. The strategy is based upon a reductive alkylation step which enables one free araine to be generated regiospecifically in the new polyamine, or the regiospecific incorporation of