Synthesis of novel citrate-based siderophores and siderophore-.beta.-lactam conjugates. Iron transport-mediated drug delivery systems
作者:Arun Ghosh、Marvin J. Miller
DOI:10.1021/jo00079a007
日期:1993.12
The synthesis of analogs of arthrobactin (5), a microbial iron chelator, and its imide 8 are described. The differentially protected citric acid residue 31 served as the key intermediate in making conjugates having a generalized structure 14 with two representative carbacephalosporin units, 15 and 16. Both conjugates, 49 and 51, showed antibiotic activity, while conjugate 51 obtained from beta-lactam 16 bearing a phenylglycyl side chain was shown to be more effective.