Nonsteroidal Progesterone Receptor Ligands. 2. High-Affinity Ligands with Selectivity for Bone Cell Progesterone Receptors
作者:Donald W. Combs、Kimberly Reese、Lyndon A. M. Cornelius、Joseph W. Gunnet、Ellen V. Cryan、Kay S. Granger、Jerold J. Jordan、Keith T. Demarest
DOI:10.1021/jm00025a004
日期:1995.12
A novel series of nonsteroidal heterocycles was discovered which display cell-type selective, high-affinity (nanomolar) binding to the progesteronereceptors from TE85 osteosarcoma cells but > 1 microM binding affinity to the progesteronereceptors from T47D and ZR75 human breast carcinoma cells. Structure-activity relationships were developed for a set of these compounds, and a representative analog
γ-Aminobutyrate-A Receptor Modulation by 3-Aryl-1-(arylsulfonyl)- 1,4,5,6-tetrahydropyridazines
作者:Philip J. Rybczynski、Donald W. Combs、Kimberly Jacobs、Richard P. Shank、Barry Dubinsky
DOI:10.1021/jm9805889
日期:1999.7.1
A series of 3-aryl-1-(arylsulfonyl)-1,4,5,6-tetrahydropyridazine allosteric modulators of the GABA(A) receptor was synthesized, and biological activity was examined in vitro and in vivo. Beginning with 1a, stepwise modification of the substituents and conservation of the scaffold yielded a chemical series in which the modulatory activity was enhanced by the presence of GABA. The SAR suggests, but does not establish, that the compounds bind to the steroid binding site on the GABA(A) receptor. The GABA shift for each compound indicates that all compounds in this series are either agonists or partial agonists.