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Details

Stereochemistry ACHIRAL
Molecular Formula C18H18Cl2N2O3
Molecular Weight 381.253
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PICLAMILAST

SMILES

COC1=C(OC2CCCC2)C=C(C=C1)C(=O)NC3=C(Cl)C=NC=C3Cl

InChI

InChIKey=RRRUXBQSQLKHEL-UHFFFAOYSA-N
InChI=1S/C18H18Cl2N2O3/c1-24-15-7-6-11(8-16(15)25-12-4-2-3-5-12)18(23)22-17-13(19)9-21-10-14(17)20/h6-10,12H,2-5H2,1H3,(H,21,22,23)

HIDE SMILES / InChI

Description

Piclamilast (RP 73401), 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 asthma, dermatitis, rheumatoid arthritis. Emesis is the most commonly cited side effect of piclamilast.

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.041 nM [IC50]
0.021 nM [IC50]
0.0012 µM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown
Primary
Unknown

PubMed

Sample Use Guides

In Vivo Use Guide
1, 3 and 10 mg/kg were orally administered once daily
Route of Administration: Oral
In Vitro Use Guide
RP 73401 (IC50: 6.9 +/- 3.3 nM, n = 5) was 71 fold more potent than (+/-)-rolipram (IC50: 490 +/- 260 nM, n = 4) in inhibiting LPS-induced TNF alpha release from monocytes. RP 73401 (IC50: 2 nM) was 180 fold more potent than rolipram (IC50: 360 nM) in suppressing LPS (10 ng ml-1)-induced TNF alpha mRNA.