Nerandomilast

• CAT Number: I041694
• CAS Number: 1423719-30-5
• Molecular Formula: C20H25ClN6O2S
• Molecular Weight: 448.97
• Purity: ≥95%
• Synonyms: [1-[[(5R)-2-[4-(5-chloropyrimidin-2-yl)piperidin-1-yl]-5-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-4-yl]amino]cyclobutyl]methanol
• InChI: InChI=1S/C20H25ClN6O2S/c21-14-10-22-17(23-11-14)13-2-7-27(8-3-13)19-24-15-4-9-30(29)16(15)18(25-19)26-20(12-28)5-1-6-20/h10-11,13,28H,1-9,12H2,(H,24,25,26)/t30-/m1/s1
• InChIKey: UHYCLWAANUGUMN-SSEXGKCCSA-N
• SMILES: C1CC(C1)(CO)NC2=NC(=NC3=C2S(=O)CC3)N4CCC(CC4)C5=NC=C(C=N5)Cl

Nerandomilast (BI 1015550) is an orally active inhibitor of PDE4B with an IC50 value of 7.2 nM. Nerandomilast has good safety and potential applications in inflammation, allergic diseases, pulmonary fibrosis, and chronic obstructive pulmonary disease (COPD)[1][2].
Nerandomilast inhibits Lipopolysaccharides (HY-D1056) induced TNF-α release and Phytohemagglutinin P (HY-N7038A) induced IL-2 release in human PBMCs with IC50 values of 35 nM and 9 nM, respectively[2].
Nerandomilast inhibits TNF-α release in rat whole blood with an IC50 value of 91 nM[2].
Nerandomilast (Example 2) (0, 0.3, 1.0 and 3.0 mg/kg; p.o.; single dose) weakens intestinal transport in rats at 1.0 mg/kg without significantly affecting body weight[1].
Nerandomilast prevents inflammation in rat lung tissue with an ED50 value of 0.1 mg/kg[1].
Nerandomilast (0.01, 0.1 and 1.0 mg/kg; p.o.; single dose) reduces the Lipopolysaccharides (HY-D1056) induced TNF-α release with dose-dependent manner in mice plasma[2].
Nerandomilast (0.1, 0.3 and 1.0 mg/kg; p.o.; single dose) inhibits lipopolysaccharides induced neutrophil entry into bronchoalveolar lavage fluid of male Suncus Murinus and Wistar rats[2].
Nerandomilast (2.5 mg/kg and 12.5 mg/kg; p.o.; twice daily for 6 days) effectively improves the damage of Bleomycin (HY-108345) to mice[2].

Reference

[1]. Pouzet P A, et al. Piperidino-dihydrothienopyrimidine sulfoxides and their use for treating COPD and asthma. United States. US9150586.

[2]. Herrmann FE, et al. BI 1015550 is a PDE4B Inhibitor and a Clinical Drug Candidate for the Oral Treatment of Idiopathic Pulmonary Fibrosis. Front Pharmacol. 2022 Apr 20;13:838449.
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