[GRAPHIC]We succeeded in the synthesis of the double-tailed boron cluster lipids 4a-c and 5a-c, which have a B12H11S moiety as a hydrophilic function, by S-alkylation of B12H11SH (BSH) with bromoacetyl and chloroacetocarbamate derivatives of diacylglycerols for a liposomal boron delivery system on neutron capture therapy. Calcein encapsulation experiments revealed that the liposomes, prepared from the boron cluster lipid 4b, DMPC, PEG-DSPE, and cholesterol, are stable at 37 degrees C in FBS solution for 24 h.
The Chiral Target of Daptomycin Is the 2
<i>R</i>
,2′
<i>S</i>
Stereoisomer of Phosphatidylglycerol
作者:Ryan Moreira、Scott D. Taylor
DOI:10.1002/anie.202114858
日期:2022.1.21
Daptomycin (dap), an important clinical antibiotic, recognizes the absolute configuration of phosphatidylglycerol (PG), a key lipid found in bacterial membranes. The configuration at the headgroup of PG was found to be particularly important for dap–PG interactions. This is a rare example of a natural product targeting a membrane lipid through chiral recognition.