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LEO 39652 Sale

目录号 : GC62525

LEO 39652 是一种 dual-soft PDE4 抑制剂,对于 PDE4A 的 IC50 值为 1.2 nM,对于 PDE4B 的 IC50 值为 1.2 nM,对于 PDE4C 的 IC50 值为 3.0 nM,对于 PDE4D 的 IC50 值为 3.8 nM。LEO 39652 还抑制 TNF-α,IC50 值为 6.0 nM。LEO 39652 用于局部研究特应性皮炎。

LEO 39652 Chemical Structure

Cas No.:1445656-91-6

规格 价格 库存 购买数量
10mM (in 1mL DMSO)
¥4,455.00
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5 mg
¥4,050.00
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10 mg
¥7,200.00
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25 mg
¥14,850.00
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50 mg
¥22,950.00
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100 mg
¥34,200.00
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Sample solution is provided at 25 µL, 10mM.

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产品描述

LEO 39652 is a dual-soft PDE4 inhibitor with IC50s of 1.2 nM, 1.2 nM, 3.0 nM and 3.8 nM for PDE4A, PDE4B, PDE4C and PDE4D, respectively. LEO 39652 also inhibits TNF-α with an IC50 value of 6.0 nM. LEO 39652 is used for topical research of Atopic dermatitis (AD) [1].

LEO 39652 shows unbound in vitro potency when measured as LPS induced TNF-α release in human peripheral blood mononuclear cells (PBMC), incubated in serum free medium. LEO 39652 shows a relatively high binding to human serum albumin[2].

LEO 39652 is inactivated both in blood and liver (dual-soft) while stabled in the skin[1].Pharmacokinetic AnalysisLEO 39652 exhibits total clearance (rats 930, minipigs 200 and monkey 300 mL/min/kg) and ratio to total AUC (rats 4, minipigs 6 and monkey 6 %) following intravenous administration (rats 0.075, minipigs 0.5 and monkeys 2.0 mg/kg)[1].

[1]. Jens Larsen, et al. Discovery and Early Clinical Development of Isobutyl 1-[8-Methoxy-5-(1-oxo-3 H-isobenzofuran-5-yl)-[1,2,4]triazolo[1,5- a]pyridin-2-yl]cyclopropanecarboxylate (LEO 39652), a Novel "Dual-Soft" PDE4 Inhibitor for Topical Treatment of Atopic Dermatitis. J Med Chem. 2020 Dec 10;63(23):14502-14521.
[2]. Stefan Eirefelt, et al. Evaluating Dermal Pharmacokinetics and Pharmacodymanic Effect of Soft Topical PDE4 Inhibitors: Open Flow Microperfusion and Skin Biopsies. Pharm Res. 2020 Nov 13;37(12):243.

Chemical Properties

Cas No. 1445656-91-6 SDF
分子式 C23H23N3O5 分子量 421.45
溶解度 DMSO : 25 mg/mL (59.32 mM; Need ultrasonic) 储存条件 Store at -20°C
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储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。
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1 mM 2.3728 mL 11.8638 mL 23.7276 mL
5 mM 0.4746 mL 2.3728 mL 4.7455 mL
10 mM 0.2373 mL 1.1864 mL 2.3728 mL
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Research Update

Discovery and Early Clinical Development of Isobutyl 1-[8-Methoxy-5-(1-oxo-3 H-isobenzofuran-5-yl)-[1,2,4]triazolo[1,5- a]pyridin-2-yl]cyclopropanecarboxylate (LEO 39652), a Novel "Dual-Soft" PDE4 Inhibitor for Topical Treatment of Atopic Dermatitis

J Med Chem 2020 Dec 10;63(23):14502-14521.PMID:33054196DOI:10.1021/acs.jmedchem.0c00797.

We describe the design of a novel PDE4 scaffold and the exploration of the dual-soft concept to reduce systemic side effects via rapid elimination: introducing ester functionalities that can be inactivated in blood as well as by the liver (dual-soft) while being stable in human skin. Compound 40 was selected as a clinical candidate as it was potent and rapidly degraded by blood and liver to inactive metabolites and because in preclinical studies it showed high exposure at the target organ: the skin. Preclinical and clinical data are presented confirming the value of the dual-soft concept in reducing systemic exposure.

Evaluating Dermal Pharmacokinetics and Pharmacodymanic Effect of Soft Topical PDE4 Inhibitors: Open Flow Microperfusion and Skin Biopsies

Pharm Res 2020 Nov 13;37(12):243.PMID:33188482DOI:10.1007/s11095-020-02962-1.

Purpose: To investigate the difference in clinical efficacy in AD patients between two topical PDE4 inhibitors using dermal open flow microperfusion and cAMP as a pharmacodynamic read-out in fresh human skin explants. Methods: Clinical formulations were applied to intact or barrier disrupted human skin explants and both skin biopsy samples and dermal interstitial fluid was sampled for measuring drug concentration. Furthermore, cAMP levels were determined in the skin biopsies as a measure of target engagement. Results: Elevated cAMP levels were observed with LEO 29102 while no evidence of target engagement was obtained with LEO 39652. In barrier impaired skin the dISF concentration of LEO 29102 was 2100 nM while only 33 nM for LEO 39652. For both compounds the concentrations measured in skin punch biopsies were 7-33-fold higher than the dISF concentrations. Conclusions: Low unbound drug concentration in dISF in combination with minimal target engagement of LEO 39652 in barrier impaired human skin explants supports that lack of clinical efficacy of LEO 39652 in AD patients is likely due to insufficient drug availability at the target. We conclude that dOFM together with a pharmacodynamic target engagement biomarker are strong techniques for establishing skin PK/PD relations and that skin biopsies should be used with caution.