Benzo- and pyrido-1,4-oxazepin-5-ones and -thiones: synthesis and structure-activity relationships of a new series of H1-antihistamines
摘要:
A series of novel benzo- and pyrido-1,4-oxazepinones and -thiones which represents a new structural class of compounds possessing H1 antihistaminic activity was synthesized, and the SARs were evaluated. The antihistaminic activity was determined by blockade of histamine-induced lethality in guinea pigs. The sedative potential was determined by comparison of the EEG profiles of the compounds with those of known sedating and nonsedating antihistamines. Several of the compounds were shown to possess potent H1 antihistaminic activity and to be free of the cortical slowing with synchronized waves and spindling activity found in the EEG of sedative antihistamines. One compound, 2-[2-(dimethylamino)ethyl]-3,4-dihydro-4-methylpyrido[3,2-f]-1,4- oxazepine-5(2H)-thione (rocastine) is currently undergoing clinical evaluation as a nonsedating H1 antihistamine.
Benzo- and pyrido-1,4-oxazepin-5-ones and -thiones: synthesis and structure-activity relationships of a new series of H1-antihistamines
摘要:
A series of novel benzo- and pyrido-1,4-oxazepinones and -thiones which represents a new structural class of compounds possessing H1 antihistaminic activity was synthesized, and the SARs were evaluated. The antihistaminic activity was determined by blockade of histamine-induced lethality in guinea pigs. The sedative potential was determined by comparison of the EEG profiles of the compounds with those of known sedating and nonsedating antihistamines. Several of the compounds were shown to possess potent H1 antihistaminic activity and to be free of the cortical slowing with synchronized waves and spindling activity found in the EEG of sedative antihistamines. One compound, 2-[2-(dimethylamino)ethyl]-3,4-dihydro-4-methylpyrido[3,2-f]-1,4- oxazepine-5(2H)-thione (rocastine) is currently undergoing clinical evaluation as a nonsedating H1 antihistamine.
Process for the preparation of aromatic-1,4-oxazepinones and thiones
申请人:A.H. ROBINS COMPANY, INCORPORATED
(a Delaware corporation)
公开号:EP0175570A2
公开(公告)日:1986-03-26
1,4-Oxazepinones and thiones of general formula b
where aromatic ring selected from benzene, naphtha- pyridine; n is 1 to 3; Z is an amino radicar; , cycloalkyl or phenyl-loweratkvl; and R4 and R6 are hydrogen and loweralkyl, may be prepared by of general formula II or general formula
which in turn may be prepared from chloroaromatic carboxylates and alkanolamines.
通式 b 的 1,4-氧氮杂卓酮和硫酮
其中芳香环选自苯、石脑油-吡啶;n 为 1 至 3;Z 为氨基辐射体;、环烷基或苯基-低级烷基;R4 和 R6 为氢和低级烷基,可通过通式 II 或通式制备
它们又可由氯芳羧酸酯和烷醇胺制备。
——
作者:LO YOUNG S.、 CALE , JR.、 ALBERT D.
DOI:——
日期:——
US4610819A
申请人:——
公开号:US4610819A
公开(公告)日:1986-09-09
US4783535A
申请人:——
公开号:US4783535A
公开(公告)日:1988-11-08
Benzo- and pyrido-1,4-oxazepin-5-ones and -thiones: synthesis and structure-activity relationships of a new series of H1-antihistamines
作者:Albert D. Cale、Thomas W. Gero、Kathleen R. Walker、Young S. Lo、William J. Welstead、Larry W. Jaques、Ashby F. Johnson、Charles A. Leonard、Joseph C. Nolan、David N. Johnson
DOI:10.1021/jm00129a026
日期:1989.9
A series of novel benzo- and pyrido-1,4-oxazepinones and -thiones which represents a new structural class of compounds possessing H1 antihistaminic activity was synthesized, and the SARs were evaluated. The antihistaminic activity was determined by blockade of histamine-induced lethality in guinea pigs. The sedative potential was determined by comparison of the EEG profiles of the compounds with those of known sedating and nonsedating antihistamines. Several of the compounds were shown to possess potent H1 antihistaminic activity and to be free of the cortical slowing with synchronized waves and spindling activity found in the EEG of sedative antihistamines. One compound, 2-[2-(dimethylamino)ethyl]-3,4-dihydro-4-methylpyrido[3,2-f]-1,4- oxazepine-5(2H)-thione (rocastine) is currently undergoing clinical evaluation as a nonsedating H1 antihistamine.