Benzenesulfonamide derivatives of 2-substituted 4H-3,1-benzoxazin-4-ones and benzthiazin-4-ones as inhibitors of complement C1r protease
摘要:
A series of 2-sulfonyl-4H-3,1 -benzoxazinones was prepared that inhibit Clr protease in vitro. Several compounds were found to be selective for Clr verses the related serine protease trypsin. Selected compounds demonstrated functional activity in a hemolysis assay. (C) 1999 Elsevier Science Ltd. All rights reserved.
Room-Temperature Palladium-Catalyzed CH Activation:<i>ortho</i>-Carbonylation of Aniline Derivatives
作者:Chris E. Houlden、Marc Hutchby、Chris D. Bailey、J. Gair Ford、Simon N. G. Tyler、Michel R. Gagné、Guy C. Lloyd-Jones、Kevin I. Booker-Milburn
DOI:10.1002/anie.200805842
日期:2009.2.23
Pd and CO—ureally got me! The title reaction proceeds efficiently at 18 °C under CO (1 atm) with 5 % [Pd(OTs)2(MeCN)2] as precatalyst. Depending on the solvents used, either anthranilates or cyclic imides can be obtained in high yields (see picture, BQ=benzoquinone, Ts=4‐toluenesulfonyl).
Pd 和 CO - 真的抓住了我!标题反应在 18 °C 下在 CO (1 atm) 下有效进行,使用 5% [Pd(OTs) 2 (MeCN) 2 ] 作为预催化剂。根据所使用的溶剂,可以高产率获得邻氨基苯甲酸酯或环状酰亚胺(见图,BQ=苯醌,Ts=4-甲苯磺酰基)。
Rekker,R.F.; Nauta,W.T., Recueil des Travaux Chimiques des Pays-Bas, 1964, vol. 83, p. 1039 - 1046
作者:Rekker,R.F.、Nauta,W.T.
DOI:——
日期:——
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).
Krantz, Allen; Spencer, Robin W.; Tam, Tim F., Journal of Medicinal Chemistry, 1987, vol. 30, # 4, p. 590 - 591
作者:Krantz, Allen、Spencer, Robin W.、Tam, Tim F.、Thomas, Everton、Copp, Leslie J.
DOI:——
日期:——
4H-3,1-benzoxazin-4-ones and related compounds, pharmaceutical compositions containing them, and processes for their preparation