Synthesis of 2-aziridinyl phosphonates by modified Gabriel–Cromwell reaction and their antibacterial activities
摘要:
A set of new aziridinyl phosphonates (4a-g) were synthesized by using the Gabriel-Cromwell reaction and its modified version developed in this study and their structures confirmed by HRMS, IR. and NMR spectra. All the compounds were screened for their antibacterial activity. They all showed comparable moderate to good growth inhibitory activity in reference to ampicillin and streptomycin. (C) 2011 Elsevier Masson SAS. All rights reserved.
Abstract A series of unactivated racemic and chiral aziridine-2-phosphonates were synthesized by modified Gabriel-Cromwell reaction. Ringopening reaction of the synthesized phosphonates by gaseous HCl provided access to a wide range of biologically interesting novel β-chloro-α-aminophosphonates. All reactions toward each of the above-mentioned products can be conducted regioselectively in high yields
Aziridines are highly useful compounds as building blocks for the synthesis of important organic compounds. Aminoacidsynthesis by aziridine ring opening reaction is a good example to the use of aziridines. Although this reaction is studied by many groups, the synthesis of amino phosphonic acids is less explored. In this study, we have carried out the ring opening reaction of aziridinyl phosphonates