PIL as a free ligand exists in 3 entries. Examples include: 1XM4 1XON 4PHL

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View summary at Ligand Expo

Chemical Component Summary

FormulaC18 H18 Cl2 N2 O3
Molecular Weight381.25
Isomeric SMILESCOc1ccc(cc1OC1CCCC1)C(=O)Nc1c(Cl)cncc1Cl

Chemical Details

Formal Charge0
Atom Count43
Chiral Atom Count0
Chiral Atomsn/a
Bond Count45
Aromatic Bond Count12
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB01791 Different stereochemistry
DescriptionPiclamilast (RP-73,401), is a selective PDE4 inhibitor. It is comparable to other PDE4 inhibitors for its anti-inflammatory effects. It has been investigated for its applications to the treatment of conditions such as chronic obstructive pulmonary disease, bronchopulmonary dysplasia and asthma. It is a second generation compound that exhibits structural functionalities of the PDE4 inhibitors cilomilast and roflumilast. The structure for piclamilast was first elucidated in a 1995 European patent application.
SynonymsRP 73-401
Affected OrganismHumans and other mammals
  • Acids, Carbocyclic
  • Amides
  • Benzene Derivatives
  • Benzoates
  • Carboxylic Acids
CAS number144035-83-6
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