Spectrofluorimetric Quantification of Malondialdehyde for Evaluation of Cyclooxygenase-1/Thromboxane Synthase Inhibition
摘要:
The in vitro assay developed by Hartmann and Ledergerber (1995)([1]) utilizing the spectrofluorimetric quantification of malondialdehyde after reaction with thiobarbituric acid was modified and used for further investigations. The human whole blood was replaced by a platelet suspension of pig blood, and calcium ionophore A23187 was used instead of collagen for inducing the;arachidonic acid cascade. The modified assay represents a simple, time and cost saving method for the evaluation of cyclooxygenase-1/thromboxane synthase inhibition. The reproducibility and comparability of results is given. Additional experiments allow classification of selective phospholipase A(2), cyclooxygenase-l, and thromboxane synthase inhibitors. Further studies of malondialdehyde formation show that the cyclooxygenase and/or the thromboxane synthase are competitively inhibited by reaction products of the cyclooxygenase pathway by a negative feedback mechanism.
A convergent general synthetic protocol for construction of spirocyclic ketal ionophores: an application to the total synthesis of (-)-A-23187 (calcimycin)
作者:Robert K. Boeckman、Andre B. Charette、Theodros Asberom、Brian H. Johnston
DOI:10.1021/ja00258a063
日期:1987.11
trimethyl-3,5,5' spirobi-2:2'-pyrane via la reaction du dihydro-3,4 methoxymethoxymethyl-1' ethyl-2 methyl-3 pyranne avec le bromo-1 t-butyldimethylsiloxy-4 t-butyldiphenylsiloxy-6 methyl-3 hexane. Application a la synthese de la calcimycine
合成这些去叔丁基二苯基甲硅烷氧基-2″乙基-6'[羟甲基-1'乙基]-6全氢三甲基-3,5,5'螺双-2:2'-吡喃经由la反应二氢-3,4甲氧基甲氧基甲基-1 ' 乙基-2 甲基-3 吡喃 avec le bromo-1 t-丁基二甲基甲硅烷氧基-4 t-丁基二苯基甲硅烷氧基-6 甲基-3 己烷。应用a la 合成de la calcimycine
1-arylalkoxy- and 1-arylalkylthioaryl-2-pyrazolines as anti-inflammatory
申请人:Rorer Pharmaceutical Corporation
公开号:US04677210A1
公开(公告)日:1987-06-30
##STR1## wherein Ar and Ar.sub.1 are each independently phenyl or naphthyl or a nitrogen, oxygen or sulfur-heterocyclic ring; Z is a chemical bond or an alkylene chain containing up to 5 carbons in the principal chain and up to a total of 7 carbons; X is O or S; R and R.sub.1 are independently hydrogen, hydroxy, lower alkoxy, lower alkanoyloxy, halo, cyano, carboloweralkoxy, carboxyloweralkyl, aryloxy or benzyloxy; R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are independently hydrogen, lower alkyl, lower aralkyl, lower alkenyl, lower alkynyl, aryl or carboxyloweralkyl; and pharmaceutically acceptable salts thereof have pharmaceutical activity, particularly as lipoxygenase inhibitors possessing anti-inflammatory and anti-allergic properties.
Amido substituted naphthalenes and intermediates thereof
申请人:Ortho Pharmaceutical Corporation
公开号:US04814487A1
公开(公告)日:1989-03-21
The synthesis of amido substituted naphthalenes and their intermediates is described. The intermediates and amido substituted naphthalenes are useful as anti-inflammatory agents.
描述了酰胺取代萘及其中间体的合成方法。这些中间体和酰胺取代萘可用作抗炎药物。
Biologically Active Compounds
申请人:Leach David
公开号:US20090221517A1
公开(公告)日:2009-09-03
Compounds having useful biological activity, particularly antioxidant and anti-inflammatory activity, derived from
Centipeda cunninghamii
, and biologically active derivatives thereof, pharmaceutical compositions comprising these compounds, and prophylactic and therapeutic use of the compounds.
Compounds having useful biological activity, particularly antioxidant and anti-inflammatory activity, derived from Centipeda cunninghamii, and biologically active derivatives thereof, pharmaceutical compositions comprising these compounds, and prophylactic and therapeutic use of the compounds.