An invention relating to Imidazo[1,5-a]quinoxalines (I) ##STR1## which do not contain an endocyclic carbonyl group and which are useful as anxiolytic and sedative/hypnotic agents.
一种涉及咪唑并[1,5-a]喹喔啉(I)的发明,不含内环羰基,并且可用作抗焦虑和镇静/催眠剂。
High-Affinity Partial Agonist Imidazo[1,5-<i>a</i>]quinoxaline Amides, Carbamates, and Ureas at the γ-Aminobutyric Acid A/Benzodiazepine Receptor Complex
作者:E. Jon Jacobsen、Ruth E. TenBrink、Lindsay S. Stelzer、Kenneth L. Belonga、Donald B. Carter、Haesook K. Im、Wha Bin Im、Vimala H. Sethy、Andy H. Tang、Philip F. VonVoigtlander、James D. Petke
DOI:10.1021/jm940765f
日期:1996.1.1
A series of imidazo[1,5-alpha]quinoxaline amides, carbamates, and ureas which have high affinity for the gamma-aminobutyric acid A/benzodiazepine receptor complex was developed. Compounds within this class have varying efficacies racing from antagonists to full agonists. However, most analogs were found to be partial agonists as indicated by [S-35]TBPS and Cl- current ratios. Many of these compounds were also effective in antagonizing metrazole-induced seizures in accordance with anticonvulsant and possible anxiolytic activity. Selected quinoxalines displayed limited benzodiazepine-type side effects such as ethanol potentiation and physical dependence in animal models. Dimethylamino urea 41 emerged as the most interesting analog, having a partial agonist profile in vitro while possessing useful activity in animal models of anxiety such as the Vogel and Geller assays. In accordance with its partial agonist profile, 41 was devoid of typical benzodiazepine side effects.
WATJEN, FRANK;BAKER, RAYMOND;ENGELSTOFF, MOGENS;HERBERT, RICHARD;MACLEOD,+, J. MED. CHEM., 32,(1989) N0, C. 2282-2291
作者:Frank Watjen、Raymond Baker、Mogens Engelstoff、Richard Herbert、Angus MacLeod、Anthony Knight、Kevin Merchant、Jonathan Moseley、John Saunders、Christopher J. Swain、Erik Wong、James P. Springer
DOI:10.1021/jm00130a010
日期:1989.10.1
The synthesis and biochemical evaluation of a series of oxadiazole derivatives of imidazobenzodiazepines related to the benzodiazepineantagonist Ro 15-1788 (2a) are reported. Although the oxadiazole ring is seen as an isosteric replacement for the ester linkage, significant differences in structure-activity trends were observed. Specifically, oxadiazoles 9-12 invariably had increased receptor efficacy