Synthesis of thiophene-2-carboxamidines containing 2-amino-thiazoles and their biological evaluation as urokinase inhibitors
摘要:
The serine protease urokinase (uPa) has been implicated in the progression of both breast and prostate cancer. Utilizing structure based design, the synthesis of a series of substituted 4-[2-amino- 1,3-thiazolyl]-thiophene-2-carboxamidine is described. Further optimization of this series by substitution of the terminal amine yielded urokinase inhibitors with excellent activities. (C) 2001 Elsevier Science Ltd. All rights reserved.
作者:Jefferson W. Tilley、Paul Levitan、Richard W. Kierstead、Michael Cohen
DOI:10.1021/jm00186a019
日期:1980.12
Structure-activity studies were carried out on a series of antihypertensive 1-(2-aminoethyl)-3-(substituted phenyl)thioureas. From this class of compounds, the 2,6-dichlorophenyl analogue 2 was found to have potent oral antihypertensive activity in two hypertensive rat models and the renal hypertensive dog. In addition to its effect on blood pressure, 2 displayed sedative effects which had a marked species specificity.
2-Amino-4<i>H</i>-3,1-benzoxazin-4-ones as Inhibitors of C1r Serine Protease
作者:Sheryl J. Hays、Bradley W. Caprathe、John L. Gilmore、Nilam Amin、Mark R. Emmerling、Walter Michael、Ravi Nadimpalli、Rathna Nath、Kadee J. Raser、Daniel Stafford、Desiree Watson、Kevin Wang、Juan C. Jaen
DOI:10.1021/jm970394d
日期:1998.3.1
A series of 2-amino-4H-3,1-benzoxazin-4-ones have been synthesized and evaluated as inhibitors of the complement enzyme C1r. C1r is a serine protease at the beginning of the complement cascade, and complement activation by beta-amyloid may represent a major contributing pathway to the neuropathology of Alzheimer's disease. Compounds such as 7-chloro-2-[(2-iodophenyl)amino]benz[d][1,3]oxazin-4-one (32) and 7-methyl-2-[(2-iodophenyl)amino]benz[d] 4-one (37) show improved potency compared to the reference compound FUT-175. Many of these active compounds also possess increased selectivity for C1r compared to trypsin and enhanced hydrolytic stability relative to 2-(2-iodophenyl)-4H-3,1-benzoxazin-4-one (1).
A novel aromatic alkylation of anilines with cyclic and acyclic ketones under hydrothermal conditions
作者:Barun K. Mehta、Koji Kumamoto、Kazumichi Yanagisawa、Hiyoshizo Kotsuki
DOI:10.1016/j.tetlet.2005.07.165
日期:2005.10
A novel aromatic ring-alkylation was achieved by condensation between aniline(.)HCI salts and cyclic or acyclic ketones under hydrothermal conditions. (c) 2005 Elsevier Ltd. All rights reserved.