U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry ACHIRAL
Molecular Formula C22H21ClN4O4S
Molecular Weight 472.945
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of O-DEALKYLATED LAPATINIB

SMILES

CS(=O)(=O)CCNCC1=CC=C(O1)C2=CC=C3N=CN=C(NC4=CC=C(O)C(Cl)=C4)C3=C2

InChI

InChIKey=SVTCWAMLLWYBEI-UHFFFAOYSA-N
InChI=1S/C22H21ClN4O4S/c1-32(29,30)9-8-24-12-16-4-7-21(31-16)14-2-5-19-17(10-14)22(26-13-25-19)27-15-3-6-20(28)18(23)11-15/h2-7,10-11,13,24,28H,8-9,12H2,1H3,(H,25,26,27)

HIDE SMILES / InChI

Molecular Formula C22H21ClN4O4S
Molecular Weight 472.945
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Approval Year

Substance Class Chemical
Created
by admin
on Sat Dec 16 08:23:21 UTC 2023
Edited
by admin
on Sat Dec 16 08:23:21 UTC 2023
Record UNII
8PL9CEZ8WK
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
O-DEALKYLATED LAPATINIB
Common Name English
PHENOL, 2-CHLORO-4-((6-(5-(((2-(METHYLSULFONYL)ETHYL)AMINO)METHYL)-2-FURANYL)-4-QUINAZOLINYL)AMINO)-
Systematic Name English
LAPATINIB METABOLITE M1
Common Name English
2-CHLORO-4-((6-(5-((2-METHYLSULFONYLETHYLAMINO)METHYL)-2-FURYL)QUINAZOLIN-4-YL)AMINO)PHENOL
Systematic Name English
Code System Code Type Description
PUBCHEM
71315271
Created by admin on Sat Dec 16 08:23:21 UTC 2023 , Edited by admin on Sat Dec 16 08:23:21 UTC 2023
PRIMARY
CAS
1268997-70-1
Created by admin on Sat Dec 16 08:23:21 UTC 2023 , Edited by admin on Sat Dec 16 08:23:21 UTC 2023
PRIMARY
FDA UNII
8PL9CEZ8WK
Created by admin on Sat Dec 16 08:23:21 UTC 2023 , Edited by admin on Sat Dec 16 08:23:21 UTC 2023
PRIMARY
Related Record Type Details
METABOLIC ENZYME -> INHIBITOR
Lapatinib is a mechanism-based inactivator of CYP3A4, most likely via the formation and further oxidation of its O-dealkylated metabolite to a quinoneimine that covalently modifies the CYP3A4 apoprotein and/or heme moiety
Related Record Type Details
PARENT -> METABOLITE TOXIC
Specifically, the structure of O-dealkylated lapatinib has the potential to generate a reactive quinoneimine similar to the model hepatotoxin acetaminophen. lapatinib is a mechanism-based inactivator of CYP3A4, most likely via the formation and further oxidation of its O-dealkylated metabolite to a quinoneimine that covalently modifies the CYP3A4 apoprotein and/or heme moiety.
MAJOR