Tetrasubstituted Imidazole Inhibitors of Cytokine Release: Probing Substituents in the N-1 Position
摘要:
We prepared novel 1,2,4,5-tetrasubstituted imidazole derivatives with high anti-inflammatory activity by using our previously described regiospecific synthesis. Systematic optimization of the imidazole N-1 substituent resulted in compound 9b that potently inhibited the mitogen-activated protein kinase p38 (p38 IC50 = 0.218 muM) as well as the release of the proinflammatory cytokines interleukin-1beta (IL-1beta) and tumor necrosis factor alpha. (TNFalpha) from human whole blood after stimulation with LPS. Furthermore, compound 9b exhibited reduced cytochrome P450 interaction in comparison with SB203580. This result is particularly important, since cytochrome P450 interaction is observed for some p38 inhibitors and in turn can potentially cause drug-drug interaction or lead to other hepatic changes such as P450 enzyme induction.
Methods for making asymmetrical triazines are provided. The methods comprise first forming a mixture of at least two primary amines then reacting the mixture with an aldehyde. Methods for removing sulfides from hydrocarbon streams are also provided. The triazines may be added to the hydrocarbon stream in a molar ratio of triazine:H
2
S of about 10:1 to about 1:2.
Method of reducing hydrogen sulfide levels in gaseous mixtures using triazines
申请人:Dow Global Technologies LLC
公开号:US10155911B2
公开(公告)日:2018-12-18
The present invention relates to a scavenging composition capable of scavenging a wide variety of sulfur-bearing compounds, such as hydrogen sulfide and method of use thereof. Said scavenging composition comprises an aqueous solution of a triazine compound, an anionic surfactant, and optionally an alcohol and/or glycol ether solution. The composition may be used in any kind of sulfide-scavenging operation and is particularly useful for sulfide scavenging in the context of sulfide removal from oil or gas streams and in the treatment of oil or gas transmission lines or equipment.
METHOD OF REDUCING HYDROGEN SULFIDE LEVELS IN LIQUID OR GASEOUS STREAMS USING COMPOSITIONS COMPRISING TRIAZINES AND ANIONIC SURFACTANTS
申请人:Dow Global Technologies LLC
公开号:EP3283600B1
公开(公告)日:2019-09-25
ANTI-CORROSION FORMULATIONS THAT ARE STABLE DURING STORAGE
申请人:CECA S.A.
公开号:US20160090655A1
公开(公告)日:2016-03-31
The present invention relates to formulations for inhibiting the corrosion of the metals used in the oil industry, and more generally in all types of industries for drilling for fossil compounds or ores, such as gas or oil. The corrosion-inhibiting formulations are stable during storage, and have improved properties due to the presence of at least one compound having at least one triazine unit. The invention also relates to the use of at least one compound comprising at least one triazine unit in a corrosion-inhibiting formulation, as well as to the use of said corrosion-inhibiting formulation in the oil, gas and mining industry.