Improved Procedures for the Preparation of Cycloalkyl-, Arylalkyl-, and Arylthioureas
作者:C. R. Rasmussen、F. J. Villani, Jr.、L. E. Weaner、B. E. Reynolds、A. R. Hood、L. R. Hecker、S. O. Nortey、A. Hanslin、M. J. Costanzo、E. T. Powell、A. J. Molinari
DOI:10.1055/s-1988-27605
日期:——
An improved procedure for the preparation of arylthioureas consists of the reaction of benzoyl isothiocyanate with anilines in acetone and debenzoylation of the resultant N-aryl-N′-benzoylthioureas with 5% aqueous sodium hydroxide. Bicycloalkylthioureas and N-(arylalkyl)thioureas (e.g., 9H-9-fluorenylthiourea) are directly prepared from the corresponding isothiocyanates and ammonia.
To find new H+/K+‐ATPase inhibitors for the treatment of peptic ulcer disease, a series of novel N‐aryl isothiourea derivatives were synthesized and their structures were identified by 1H NMR and GC‐MS. The effects of these compounds on inhibitinggastric acid secretion were evaluated by the guinea pig stomach mucous membrane study with pantoprazole magnesium as a positive control. The results showed
A series of fused bicyclic 2-aminothiazolyl compounds were synthesized and evaluated for their synergistic effects with polymyxin B (PB) against Klebsiella pneumoniae (SIPI-KPN-1712).
An efficient methodology for the synthesis of 4-amino-2-iminothiazole derivatives has been developed. The synthesis involves the cyclization of unsymmetrical 1-aroyl-3-arylthioureas with a variety ...