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PAF receptor antagonist
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(±)trans-2,5-bis-(3,4,5-Trimethoxyphenyl)-1,3-dioxolane, also known as trans-BTP Dioxolane, is a PAF receptor antagonist [1].

Platelet activating factor (PAF), a phospholipid mediator of inflammation, is secreted by several cell types including arterial endothelial cells, and can activate polymorphonuclear leucocytes and monocytes via specific cell surface receptors. PAF also stimulates the production of active oxygen species by human monocyte - derived macrophages. PAF play important roles in a variety of pathophysiological states including acute allergy, inflammation, asthma, gastrointestinal ulceration, and toxic shock [1].

(±)trans-2,5-bis-(3,4,5-Trimethoxyphenyl)-1,3-dioxolane is a PAF receptor antagonist. In the rabbit washed platelet assay, (±)trans-2,5-bis-(3,4,5-Trimethoxyphenyl)-1,3-dioxolane showed good competitive PAF antagonism with Ki value of 0.3 μM, whereas the cis-isomer was much less active.

[1].  Corey, E.J.,Chen, C.P., and Parry, M.J. Dual binding modes to the receptor for platelet activating factor (PAF) of anti-PAF trans-2,5-diarylfurans. Tetrahedron Letters 29, 2899-2902 (1988).

Chemical Properties

Physical AppearanceA crystalline solid
StorageStore at -20°C
Cas No.116673-45-1
Synonymstrans-BTP Dioxolane
Solubility≤35mg/ml in ethanol;50mg/ml in DMSO;50mg/ml in dimethyl formamide
Chemical Nametrans-(±)-2,4-bis(3,4,5-trimethoxyphenyl)-1,3-dioxolane
SDFDownload SDF
Canonical SMILESCOC1=CC([[email protected]]2O[[email protected]](C3=CC(OC)=C(OC)C(OC)=C3)OC2)=CC(OC)=C1OC
Shipping ConditionEvaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.