Iron Transport-Mediated Drug Delivery: Synthesis and Biological Evaluation of Cyanuric Acid-Based Siderophore Analogs and .beta.-Lactam Conjugates
作者:Manuka Ghosh、Marvin J. Miller
DOI:10.1021/jo00084a018
日期:1994.3
Trihydroxamate-containing isocyanurates 4a-c were synthesized and determined to be capable of substituting for natural siderophores (microbial iron sequestering agents) in limited microbiological assays. The direct coupling of protected 4a to carbacephalosporins 16 and 17 and subsequent deprotection gave conjugates 20 and 21. The Lorabid conjugate 21 was especially active against E. coli X580 in preliminary biological tests, thus demonstrating the continued potential of siderophore-mediated drug delivery.
Artificial siderophores. 2. Syntheses of trihydroxamate analogs of rhodotorulic acid and their biological iron transport capabilities in Escherichia coli
作者:Byung Hyun Lee、Marvin J. Miller、Catherine A. Prody、John B. Neilands
DOI:10.1021/jm00381a011
日期:1985.3
isocyanurates 2a-c were synthesized from alpha, omega-dibromoalkanes 5 in four steps. The alkylation of the bromides 5a-c with O-benzyl-N-[(trichloroethoxy)carbonyl]hydroxylamine in the presence of DBU gave N-alkylation products 7a-c. The (trichloroethoxy)cabronyl protecting group of 7a-c was easily removed by Zn dust in acetic acid. When the reaction was performed with acetic anhydride, the desired N-acetylated