Chemical Component Summary

Identifiers4-cyano-4-(3-cyclopentyloxy-4-methoxy-phenyl)cyclohexane-1-carboxylic acid
FormulaC20 H25 N O4
Molecular Weight343.42
Isomeric SMILESCOc1ccc(cc1OC1CCCC1)[C@]1(CC[C@@H](CC1)C(O)=O)C#N

Chemical Details

Formal Charge0
Atom Count50
Chiral Atom Count0
Chiral Atomsn/a
Bond Count52
Aromatic Bond Count6
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB03849 Different stereochemistry
DescriptionCilomilast (Ariflo, SB-207,499) is a drug which was developed for the treatment of respiratory disorders such as asthma and Chronic Obstructive Pulmonary Disease (COPD). It is orally active and acts as a selective Phosphodiesterase-4 inhibitor. Following four clinical trials, the drug proved to be effective in treating COPD, however it has never been marketed due to a poor side effect profile.
  • Ariflo
  • cis-4-cyano-4-(3-(cyclopentyloxy)-4-methoxyphenyl)cyclohexanecarboxylic acid
IndicationInvestigated for use/treatment in chronic obstructive pulmonary disease (COPD).
Mechanism of actionCilomilast shows high selectivity for cAMP-specific PDE4, an isoenzyme that predominates in pro-inflammatory and immune cells and that is 10-fold more selective for PDE4D than for PDE4A, -B or -C. In vitro, cilomilast suppresses the activity of several pro-inflammatory and immune cells that have been implicated in the pathogenesis of asthma and COPD. Moreover, it is highly active in animal models of these diseases. Cilomilast has been shown to exert potent anti-inflammatory effects both in vitro and in vivo.
  • Acids, Carbocyclic
  • Carboxylic Acids
  • Chemical Actions and Uses
  • Cyclohexanes
  • Cycloparaffins
CAS number153259-65-5
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682