Glasdegib maleateProduct ingredient for Glasdegib

Name
Glasdegib maleate
Drug Entry
Glasdegib

Glasdegib, also known as PF-04449913, is a small-molecule hedgehog signaling inhibitor selected under the group of benzimidazoles. In early research, benzimidazoles attracted large interest as they represented a class of inhibitors with low molecular weight, potent inhibitory activity, and lacking unstable functionality.1 The great lipophilicity of this group of compounds brought interest to further modification. This analysis concluded that the presence of p-cyano ureas presented good physicochemical and pharmacokinetic properties from which glasdegib was developed.1

Glasdegib was developed by Pfizer Inc and approved on November 21, 2018 by the FDA for the treatment of Acute Myeloid Leukemia (AML).11 Glasdegib targets cancerous cells by inhibiting the sonic hedgehog receptor smoothened (SMO), a transmembrane protein involved in the Hedgehog (Hh) signaling cascade.5 Aberrant of Hh signaling is one of the main pathophysiologies of AML, with observed overexpression or constitutive activation of SMO.6,7 Although the efficacy of glasdegib monotherapy is limited, the landmark Phase 2 Bright AML 1003 trial showed a superior overall survival and complete response when glasdegib is combined with low dose cytarabine. Currently, the current gold standard of AML in older patients is still venetoclax with hypomethylation agents, new clinical combinations of glasdegib are being tested in hope of replacing venetoclax due to glasdegib's more favorable side effects profile.5

Accession Number
DBSALT003035
Structure
Synonyms
Not Available
UNII
TH2EV99S4Z
CAS Number
2030410-25-2
Weight
Average: 490.52
Monoisotopic: 490.196467961
Chemical Formula
C25H26N6O5
InChI Key
VJCVKWFBWAVYOC-UIXXXISESA-N
InChI
InChI=1S/C21H22N6O.C4H4O4/c1-27-11-10-16(24-21(28)23-15-8-6-14(13-22)7-9-15)12-19(27)20-25-17-4-2-3-5-18(17)26-20;5-3(6)1-2-4(7)8/h2-9,16,19H,10-12H2,1H3,(H,25,26)(H2,23,24,28);1-2H,(H,5,6)(H,7,8)/b;2-1-/t16-,19-;/m1./s1
IUPAC Name
(2Z)-but-2-enedioic acid; 1-[(2R,4R)-2-(1H-1,3-benzodiazol-2-yl)-1-methylpiperidin-4-yl]-3-(4-cyanophenyl)urea
SMILES
OC(=O)\C=C/C(O)=O.CN1CC[C@H](C[C@@H]1C1=NC2=CC=CC=C2N1)NC(=O)NC1=CC=C(C=C1)C#N
ChemSpider
58824299
ChEMBL
CHEMBL4297534
Wikipedia
Glasdegib
Predicted Properties
PropertyValueSource
Water Solubility0.0469 mg/mLALOGPS
logP2.68ALOGPS
logP2.28Chemaxon
logS-3.9ALOGPS
pKa (Strongest Acidic)11.39Chemaxon
pKa (Strongest Basic)6.67Chemaxon
Physiological Charge0Chemaxon
Hydrogen Acceptor Count4Chemaxon
Hydrogen Donor Count3Chemaxon
Polar Surface Area96.84 Å2Chemaxon
Rotatable Bond Count5Chemaxon
Refractivity108.26 m3·mol-1Chemaxon
Polarizability40.7 Å3Chemaxon
Number of Rings4Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterNoChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleNoChemaxon