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Details

Stereochemistry ABSOLUTE
Molecular Formula C30H42N8O3
Molecular Weight 562.7063
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of NAQUOTINIB

SMILES

CCC1=C(O[C@@H]2CCN(C2)C(=O)C=C)N=C(NC3=CC=C(C=C3)N4CCC(CC4)N5CCN(C)CC5)C(=N1)C(N)=O

InChI

InChIKey=QKDCLUARMDUUKN-XMMPIXPASA-N
InChI=1S/C30H42N8O3/c1-4-25-30(41-24-12-15-38(20-24)26(39)5-2)34-29(27(33-25)28(31)40)32-21-6-8-22(9-7-21)36-13-10-23(11-14-36)37-18-16-35(3)17-19-37/h5-9,23-24H,2,4,10-20H2,1,3H3,(H2,31,40)(H,32,34)/t24-/m1/s1

HIDE SMILES / InChI

Molecular Formula C30H42N8O3
Molecular Weight 562.7063
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

Naquotinib (ASP8273) is an orally available, irreversible, mutant-selective, epidermal growth factor receptor (EGFR) inhibitor, with potential antineoplastic activity. Naquotinib was found by mass spectrometry to covalently bind to a mutant EGFR (L858R/ T790M) via cysteine residue 797 in the kinase domain of EGFR with long-lasting inhibition of EGFR phosphorylation for 24 h. In the NSCLC cell lines harboring the above EGFR mutations, Naquotinib had IC50 values of 8-33 nM toward EGFR mutants, more potently than that of WT EGFR (IC50 value of 230 nM). In mouse xenograft models, Naquotinib induced complete regression of the tumors after 14 days of treatment. ASP8273 even showed activity in mutant EGFR cell line which is resistant to other EGFR TKIs. Naquotinib is in phase III clinical trials for the oral treatment of EGFR mutated non-small cell lung cancer (NSCLC).

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
8.0 nM [IC50]
230.0 nM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown

PubMed

Patents

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Oral
In Vitro Use Guide
ASP8273 (Naquotinib ) inhibited the growth of PC-9(del ex19), HCC827(del ex19), NCI-H1975(del ex19/T790M) and PC-9ER(del ex19/T790M) with IC50 values of 8-33 nM
Substance Class Chemical
Record UNII
47DD4548PB
Record Status Validated (UNII)
Record Version