Discovery of 6,11-Ethano-12,12-diaryl-6,11-dihydrobenzo[b]quinolizinium Cations, a Novel Class of N-Methyl-D-aspartate Antagonists
摘要:
6,11-Ethano-12,12-diaryl-6,11-dihydrobenzo[b]quinolizinium cations 8, a novel class of N-methyl-D-aspartate (NMDA) antagonists acting at the phencyclidine site, have been identified. Structure-activity relationship studies around the lead compound 8a led to the identification of 12g (WIN 67870-2), one of the most potent compounds in this series. Compound 12g has a K-i = 1.8 +/- 0.2 nM vs [H-3]TCP binding, has 700-fold selectivity for binding to the open state of the NMDA receptor-ionophore, and was devoid of MK-801- and PCP-like behavioral effects in rats. Compound 12g was neuroprotective in cultured mouse cortical neurons and exhibited antiischemic activity in a rat middle cerebral artery occlusion/reperfusion model of focal ischemia.
Discovery of 6,11-Ethano-12,12-diaryl-6,11-dihydrobenzo[b]quinolizinium Cations, a Novel Class of N-Methyl-D-aspartate Antagonists
摘要:
6,11-Ethano-12,12-diaryl-6,11-dihydrobenzo[b]quinolizinium cations 8, a novel class of N-methyl-D-aspartate (NMDA) antagonists acting at the phencyclidine site, have been identified. Structure-activity relationship studies around the lead compound 8a led to the identification of 12g (WIN 67870-2), one of the most potent compounds in this series. Compound 12g has a K-i = 1.8 +/- 0.2 nM vs [H-3]TCP binding, has 700-fold selectivity for binding to the open state of the NMDA receptor-ionophore, and was devoid of MK-801- and PCP-like behavioral effects in rats. Compound 12g was neuroprotective in cultured mouse cortical neurons and exhibited antiischemic activity in a rat middle cerebral artery occlusion/reperfusion model of focal ischemia.
Substituted 6,11-ethano-6,11-dihydrobenzo[b]quinolizinium salts and compositionsand methods of use thereof
申请人:STERLING WINTHROP INC.
公开号:EP0656359A1
公开(公告)日:1995-06-07
Substituted 6,11-ethano-6,11-dihydrobenzo[b]quinolizinium salts of Formula,
pharmaceutical compositions containing them, and methods for the treatment or prevention of neurodegenerative disorders or neurotoxic injuries utilizing them.
An Unusual dependency of counterion during wittig methylenation of bis-heteroaryl ketones
作者:Chakrapani Subramanyam
DOI:10.1016/0040-4039(95)02016-i
日期:1995.12
Attempted Wittig methylenation of some bis-heteroaromatic ketones (8, 11 and 13) using MeP(+)Ph(3)Br and n-BuLi gave none of the desired olefin. However, when KtBuO was used as the base for generation of the ylide, efficient olefination of these ketones was observed. A possible mechanistic pathway for this interesting but unprecedented observation is proposed.
US5554620A
申请人:——
公开号:US5554620A
公开(公告)日:1996-09-10
US5631264A
申请人:——
公开号:US5631264A
公开(公告)日:1997-05-20
Discovery of 6,11-Ethano-12,12-diaryl-6,11-dihydrobenzo[b]quinolizinium Cations, a Novel Class of N-Methyl-D-aspartate Antagonists
作者:Chakrapani Subramanyam、John P. Mallamo、John A. Dority、William G. Earley、Virendra Kumar、Lisa D. Aimone、Brian Ault、Matthew S. Miller、Daniel A. Luttinger、Diane L. DeHaven-Hudkins
DOI:10.1021/jm00001a006
日期:1995.1
6,11-Ethano-12,12-diaryl-6,11-dihydrobenzo[b]quinolizinium cations 8, a novel class of N-methyl-D-aspartate (NMDA) antagonists acting at the phencyclidine site, have been identified. Structure-activity relationship studies around the lead compound 8a led to the identification of 12g (WIN 67870-2), one of the most potent compounds in this series. Compound 12g has a K-i = 1.8 +/- 0.2 nM vs [H-3]TCP binding, has 700-fold selectivity for binding to the open state of the NMDA receptor-ionophore, and was devoid of MK-801- and PCP-like behavioral effects in rats. Compound 12g was neuroprotective in cultured mouse cortical neurons and exhibited antiischemic activity in a rat middle cerebral artery occlusion/reperfusion model of focal ischemia.