CMI-392 is a dual 5-lipoxygenese inhibitor and platelet-activating factor (PAF) receptor antagonist with IC50s of 100 and 10 nM, respectively.

Topical treatment of CMI-392 in the acute and chronic TPA models result in a significant decrease of ear weight, inflammatory cell infiltration, and histological examination. The ED50 for PAF-induced mouse hemoconcentration and arachidonic acid-induced mouse ear edema are 2.2 and 1.8 mg/kg, respectively[1].

[1]. Cai X, et al. (+/-)-trans-2-[3-methoxy-4-(4-chlorophenylthioethoxy)-5-(N-methyl-N- hydroxyureidyl)methylphenyl]-5-(3,4, 5-trimethoxyphenyl)tetrahydrofuran (CMI-392), a potent dual 5-lipoxygenase inhibitor and platelet-activating factor receptor antagonist. J Med Chem. 1998 May 21;41(11):1970-9.

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