A series of 3-(arylalkyl)-2,4,5-trioxoimidazolidine-1-acids (1) was prepared and tested for aldose reductase (AR) and aldehyde reductase (ALR) inhibitory activities. These compounds showed strong inhibitory activity against AR without significant inhibitory activity for ALR. The ratio of IC50(ALR)/IC50(AR) was > 1000 in some compouds. On the basis of pharmacological tests such as the recovery of reduced motor nerve conduction velocity and toxicological profile, 3-(3-nitrobenzyl)-2,4,5-trioxoimidazolidine-1-acid (NZ-314) was selected as the candidate for clinical development.
Ammonium Chloride‐Promoted Rapid Synthesis of Monosubstituted Ureas under Microwave Irradiation
作者:Chunling Blue Lan、Karine Auclair
DOI:10.1002/ejoc.202101059
日期:2021.10.7
Ammonium chloride promotes the selective formation of monosubstituted ureas undermicrowaveirradiation. Most nucleophiles, acid-labile functionalities, and protecting groups are well tolerated in this reaction. By avoiding transition metals and mineral acids, this methodology offers a more sustainable alternative for the synthesis of monosubstituted ureas and their analogs.
Described is a A liquid colloidal pharmaceutical formulation of a type B lantibiotic for infusion or direct injection comprising a type B lantibiotic or a salt thereof, an isotonic aqueous solution comprising a sugar alcohol such as glycerol and/or a saccharide and optionally a buffer, wherein said final formulation for infusion or direct injection is clear of visual particulates.
Microwave-Assisted Synthesis of N-Monosubstituted Urea Derivatives
作者:Lidia De Luca、Andrea Porcheddu、Giampaolo Giacomelli、Irene Murgia
DOI:10.1055/s-0030-1258553
日期:2010.10
An easy and rapid procedure for the preparation of N-monosubstituted ureas via reaction between potassium cyanate and a wide range of amines is described. The procedure was performed undermicrowaveirradiation using water as solvent. This methodology is particularly attractive since it provides ureas in high yield and purity.
The present disclosure relates to compounds of formula (II):
pharmaceutical compositions comprising same and use of the compounds and compositions for the treatment of microbial infection, particularly Methicillin-resistant
Staphylococcus aureus
(MRSA) infection.
Process for preparing 1-substituted 5-hydroxy-imidazoline-2,4-diones and 1-substituted 5-alkoxy-imidazoline-2,4-diones
申请人:Bayer Aktiengesellschaft
公开号:US06365752B1
公开(公告)日:2002-04-02
A process for preparing specific 1-substituted 5-hydroxy-imidazoline-2,4-diones by reacting glyoxylic acid with N-substituted ureas is provided, where this process is carried out in a 10-80% strength aqueous solution and in the presence of an acid catalyst. The 1-substituted 5-hydroxy-imidazoline-2,4-diones can subsequently be converted in a further reaction step to give 1-substituted 5-alkoxy-imidazoline-2,4-diones.