Synthesis of Frame-Shifted Farnesyl Diphosphate Analogs
摘要:
A set of synthetic approaches were developed and applied to the synthesis of eight frame-shifted farnesyl diphosphate (FPP) analogs. These analogs bear increased or decreased methylene units between the double bonds and/or diphosphate moieties of the isoprenoid structure. Evaluation versus mammalian FTase revealed that small structural changes can lead to dramatic changes in substrate ability.
Synthesis of Frame-Shifted Farnesyl Diphosphate Analogs
摘要:
A set of synthetic approaches were developed and applied to the synthesis of eight frame-shifted farnesyl diphosphate (FPP) analogs. These analogs bear increased or decreased methylene units between the double bonds and/or diphosphate moieties of the isoprenoid structure. Evaluation versus mammalian FTase revealed that small structural changes can lead to dramatic changes in substrate ability.
Ni-Catalyzed Cross-Electrophile Coupling for the Synthesis of Skipped Polyenes
作者:Catherine P. McGeough、Alexandra E. Strom、Timothy F. Jamison
DOI:10.1021/acs.orglett.9b01019
日期:2019.5.17
Skipped polyenes featuring high ( E)-selectivity and varying methyl substitution patterns are synthesized using a nickel-catalyzed cross-coupling reaction between allyl trifluoroacetates and vinyl bromides. The utility of this cross-electrophile coupling is showcased in part by the synthesis of the RST fragment of the marine ladder polyether, maitotoxin. Construction of this fragment is particularly