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mufemilast   Click here for help

GtoPdb Ligand ID: 14395

Synonyms: Hemay005 | Momishin® (China)
Approved drug Immunopharmacology Ligand
mufemilast is an approved drug
Compound class: Synthetic organic
Comment: Mufemilast (Hemay005) is a PDE4 inhibitor with anti-inflammatory activity [1,3].
2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 9
Hydrogen bond donors 1
Rotatable bonds 9
Topological polar surface area 152.76
Molecular weight 466.53
XLogP 0.66
No. Lipinski's rules broken 0

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES CCOC1=CC(=CC=C1OC)[C@@H](CS(=O)(=O)C)N2C(=O)C3=CSC(=C3C2=O)NC(=O)C
Isomeric SMILES CCOC1=C(C=CC(=C1)[C@@H](CS(=O)(=O)C)N2C(=O)C3=CSC(=C3C2=O)NC(=O)C)OC
InChI InChI=1S/C20H22N2O7S2/c1-5-29-16-8-12(6-7-15(16)28-3)14(10-31(4,26)27)22-19(24)13-9-30-18(21-11(2)23)17(13)20(22)25/h6-9,14H,5,10H2,1-4H3,(H,21,23)/t14-/m1/s1
InChI Key PRSNGWLHNWGOKD-CQSZACIVSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
References
1. Carmona-Rocha E, Rusiñol L, Puig L. (2025)
Exploring the Therapeutic Landscape: A Narrative Review on Topical and Oral Phosphodiesterase-4 Inhibitors in Dermatology.
Pharmaceutics, 17 (1). [PMID:39861739]
2. Jing R, Zhi X, Shao L. (2026)
Approvals by the China NMPA in 2025.
Nat Rev Drug Discov, [Epub ahead of print]. [PMID:41688808]
3. Li X, Wu X, Huo A, Zeng G, Jones R, Chen R, Wang H. (2026)
Safety, Tolerability, and Pharmacokinetics of Mufemilast, a PDE4 Inhibitor, in Healthy Participants: A First-in-Human Phase 1 Study.
Clin Pharmacol Drug Dev, 15 (1): e70005. [PMID:41545329]