Cyclooxygenase-1/2 (COX-1/COX-2) and 5-lipoxygenase (5-LOX) inhibitors of the 6,7-diaryl-2,3-1H-dihydropyrrolizine type
摘要:
A series of 6,7-diaryl-2,3-1H-dihydropyrrolizines was prepared as COX-1/COX-2 and 5-LOX inhibitors. The inhibition of COX-1 was evaluated using intact bovine platelets as the enzyme source, whereas LPS-stimulated human monocytes served as the enzyme source for inducible COX-2. The determination of arachidonic metabolites was performed by HPLC for COX-1 and RIA for COX-2. The balance between COX-1/COX-2 and 5-LOX inhibition can be shifted by modifying the substitution pattern of the phenyl moiety at the 6- and 7-position of the pyrrolizine nucleus. Structure-activity relationships are discussed. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Cyclooxygenase-1/2 (COX-1/COX-2) and 5-lipoxygenase (5-LOX) inhibitors of the 6,7-diaryl-2,3-1H-dihydropyrrolizine type
作者:H Ulbrich
DOI:10.1016/s0223-5234(02)01418-6
日期:2002.12.1
A series of 6,7-diaryl-2,3-1H-dihydropyrrolizines was prepared as COX-1/COX-2 and 5-LOX inhibitors. The inhibition of COX-1 was evaluated using intact bovine platelets as the enzyme source, whereas LPS-stimulated human monocytes served as the enzyme source for inducible COX-2. The determination of arachidonic metabolites was performed by HPLC for COX-1 and RIA for COX-2. The balance between COX-1/COX-2 and 5-LOX inhibition can be shifted by modifying the substitution pattern of the phenyl moiety at the 6- and 7-position of the pyrrolizine nucleus. Structure-activity relationships are discussed. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Preparation and reactions of rhodium complexes of some alkynylamines
作者:Eva M Campi、W.Roy Jackson
DOI:10.1016/0022-328x(96)06377-2
日期:1996.10
Reactions of [Rh(CO)2Cl]2 with the alkynylamines 1 and 2 give the corresponding alkynylamine dicarbonyl rhodium(1) chloride complexes 3 and 4 in which ligand bonding is monodenate through nitrogen. Solutions of these complexes in benzene or chloroform isomerise on standing to give complexes involving 2-substituted-pyrroline derivatives as ligands. Attempts to convert this reaction into a catalytic