Synthesis, NMDA Receptor Antagonist Activity, and Anticonvulsant Action of 1-Aminocyclobutanecarboxylic Acid Derivatives
摘要:
A range of cis- and trans-3-substituted 1-aminocyclobutane-1-carboxylic acids has been synthesized and evaluated for antagonism at excitatory amino acid receptor sites and for anticonvulsant activity. Potent and selective antagonist:activity at N-methyl-D-aspartate (NMDA) receptor sites in neonatal rat motoneurones was shown by compounds in which the 3-substituent was, or contained, a 2'-carboxyethyl or 2'-phosphonoethyl moiety. Substances 4b, 24, 35, and 40 were more potent than the standard NMDA receptor antagonist, D-2-amino-5-phosphonopentanoate (D-AP5) as NMDA antagonists in this preparation, and about equipotent with [3-(+/-)-2-carboxypiperazin-4-yl)-1-propyl]phosphonate (CPP). Anticonvulsant activity, as assessed following intracerebroventricular injection into audiogenic DBA/2 mice, generally paralleled NMDA receptor antagonist activity.
Synthesis and activity of a potent N-methyl-D-aspartic acid agonist, trans-1-aminocyclobutane-1,3-dicarboxylic acid, and related phosphonic and carboxylic acids
作者:Robin D. Allan、Jane R. Hanrahan、Trevor W. Hambley、Graham A. R. Johnston、Kenneth N. Mewett、Ann D. Mitrovic
DOI:10.1021/jm00172a036
日期:1990.10
preparation or as antagonist of the actions of the selective agonists NMDA, quisqualic acid, and kainic acid. The chain-elongated glutamate derivatives with potential antagonist activity proved to be weak and frequently nonselective antagonists in this assay. The most noteworthy result was that trans isomer 7b was a very potent agonist, approximately 20 times more active than NMDA at NMDAreceptors, while the
Regiospecific additions of hydrazoic acid and benzylamine to 1-(arylsulfonyl)bicyclo[1.1.0]Butanes. Application to the synthesis of cis and trans 2,7-methanoglutamic acids
作者:Yehiel Gaoni
DOI:10.1016/s0040-4039(00)80361-5
日期:——
Addition of hydrazoicacid or benzylamine to 1-(arylsulfonyl) bicyclobutanes introduces the nitrogen nucleophlle at position 3 of the derived cyclobutane, even when a carboxyl derivative is present at this position as a second activating group. Precursors of α-amino cyclobutane carboxylic acids may thus be obtained and these can be further transformed to the title diacids via carbonylation α to the
Derivatives of succinic and glutaric acids and analogs thereof useful as inhibitors of phex
申请人:Gravel Denis
公开号:US20060135480A1
公开(公告)日:2006-06-22
The present invention relates to derivatives of succinic and glutaric acids and analogues thereof, having the following general formula (I), useful as inhibitors of PHEX. These derivatives are useful for promoting generation of bone mass and treating or preventing diseases or conditions associated with a phosphate metabolism defect. Methods for preparation and intermediates are also disclosed.
Derivatives of succinic and glutaric acids and analogs thereof useful as inhibitors of PHEX
申请人:Gravel Denis
公开号:US20060287280A1
公开(公告)日:2006-12-21
The present invention relates to derivatives of succinic and glutaric acids and analogues thereof, having the following general formula:
useful as inhibitors of PHEX. These derivatives are useful for promoting generation of bone mass and treating or preventing diseases or conditions associated with a phosphate metabolism defect. Methods for preparation and intermediates are also disclosed.
Capture compounds, collections thereof and methods for analyzing the proteome and complex compositions
申请人:Kõster Hubert
公开号:US20100248264A1
公开(公告)日:2010-09-30
Capture compounds and collections thereof and methods using the compounds for the analysis of biomolecules are provided. In particular, collections, compounds and methods are provided for analyzing complex protein mixtures, such as the proteome. The compounds are multifunctional reagents that provide for the separation and isolation of complex protein mixtures. Automated systems for performing the methods also are provided.