Analogues of 4,5-bis(3,5-dichlorophenyl)-2-trifluoromethyl-1H-imidazole as potential antibacterial agents
摘要:
A preliminary exploration of analogues of 4,5-bis(3,5-dichlorophenyl)-2-trifluoromethyl-1H-imidazole, 1, as novel antibacterial agents was carried out to determine the basic features of the structure responsible for the observed biological activity. The presence of two aryl rings, the imidazole NH and either a good electron withdrawing group or an aldehyde or amino group at C-2 were required for good levels of activity against methicillin resistant Staphylococcus aureus (MRSA). (C) 1999 Elsevier Science Ltd. All rights reserved.
(EN) Imidazolidyl macrolides of general structural formula (I) have been prepared from suitable precursors by alkylation and/or arylation at C-3'' and/or C-4'' of the cyclohexyl ring. These macrolide immunosuppressants are useful in a mammalian host for the treatment of autoimmune diseases, infectious diseases, the prevention of rejection of foreign organ transplants and/or related afflictions, diseases and illnesses.(FR) Cette invention concerne des macrolides d'imidazolidyle de formule structurelle générale (I). On a préparé ces macrolides d'imidazolidyle à partir de précurseurs appropriés, par alkylation et/ou arylation au niveau C-3'' et/ou C-4'' du cycle cyclohexyle. Ces immunodépresseurs à base de macrolides sont utiles chez un hôte mammifère pour traiter des maladies auto-immunes et des maladies infectieuses, et pour éviter le rejet des greffes d'organes étrangers et/ou les troubles, les maladies et les maux associés.
Imidazolidyl macrolides having immunosuppressive activity
申请人:MERCK & CO. INC.
公开号:EP0536896A1
公开(公告)日:1993-04-14
Imidazolidyl macrolides of the general structural Formula I:
have been prepared from suitable precursors by alkylation and/or arylation at C-3˝ and/or C-4˝ of the cyclohexyl ring. These macrolide immunosuppressants are useful in a mammalian host for the treatment of autoimmune diseases, infectious diseases the prevention of rejection of foreign organ transplants and/or related afflictions, diseases and illnesses.
一般结构式 I 的咪唑烷基大环内酯:
由合适的前体通过环己基环的 C-3˝ 和/或 C-4˝ 烷基化和/或芳基化制备而成。这些大环内酯类免疫抑制剂可用于哺乳动物宿主治疗自身免疫性疾病、传染性疾病、预防外来器官移植的排斥反应和/或相关的痛苦、疾病和病症。
C32-O-imidazol-2-yl-methyl ether derivatives of the immunosuppressant ascomycin with improved therapeutic potential
作者:Mark T. Goulet、Shelli R. McAlpine、Mary Jo Staruch、Samuel Koprak、Francis J. Dumont、John G. Cryan、Gregory J. Wiederrecht、Raymond Rosa、Mary Beth Wilusz、Laurence B. Peterson、Matthew J. Wyvratt、William H. Parsons
DOI:10.1016/s0960-894x(98)00397-7
日期:1998.8
A series of C32-O-aralkyl ether derivatives of the FK-506 related macrolide ascomycin have been prepared based on an earlier reported C32-O-cinnamyl ether design. In the present study, the nature of the aryl tethering group was varied in an attempt to improve oral activity. An imidazol-2-yl-methyl tether was found to be superior among those investigated and has resulted in an ascomycin analog, L-733,725, with in vivo immunosuppressive activity comparable to FK-506 but with an improved therapeutic index. (C) 1998 Elsevier Science Ltd. All rights reserved.