A1B1U

(6M)-6-(2-chloro-4-methoxyphenyl)-8-methyl-2-[3-(piperazine-1-sulfonyl)anilino]pyrido[2,3-d]pyrimidin-7(8H)-one

Created:	2025-03-20
Last modified:	2026-04-01

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1 entries where A1B1U is found as a standalone ligand

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Chemical Details
Formal Charge	0
Atom Count	62
Chiral Atom Count	0
Bond Count	66
Aromatic Bond Count	18

2D diagram of A1B1U

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Chemical Component Summary
Name	(6M)-6-(2-chloro-4-methoxyphenyl)-8-methyl-2-[3-(piperazine-1-sulfonyl)anilino]pyrido[2,3-d]pyrimidin-7(8H)-one
Systematic Name (OpenEye OEToolkits)	6-(2-chloranyl-4-methoxy-phenyl)-8-methyl-2-[(3-piperazin-1-ylsulfonylphenyl)amino]pyrido[2,3-d]pyrimidin-7-one
Formula	C₂₅ H₂₅ Cl N₆ O₄ S
Molecular Weight	541.022
Type	NON-POLYMER

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	14.52	O=S(=O)(c1cc(Nc2nc3N(C)C(=O)C(=Cc3cn2)c2ccc(OC)cc2Cl)ccc1)N1CCNCC1
SMILES	CACTVS	3.385	COc1ccc(c(Cl)c1)C2=Cc3cnc(Nc4cccc(c4)[S](=O)(=O)N5CCNCC5)nc3N(C)C2=O
SMILES	OpenEye OEToolkits	3.1.0.0	CN1c2c(cnc(n2)Nc3cccc(c3)S(=O)(=O)N4CCNCC4)C=C(C1=O)c5ccc(cc5Cl)OC
Canonical SMILES	CACTVS	3.385	COc1ccc(c(Cl)c1)C2=Cc3cnc(Nc4cccc(c4)[S](=O)(=O)N5CCNCC5)nc3N(C)C2=O
Canonical SMILES	OpenEye OEToolkits	3.1.0.0	CN1c2c(cnc(n2)Nc3cccc(c3)S(=O)(=O)N4CCNCC4)C=C(C1=O)c5ccc(cc5Cl)OC
InChI	InChI	1.06	InChI=1S/C25H25ClN6O4S/c1-31-23-16(12-21(24(31)33)20-7-6-18(36-2)14-22(20)26)15-28-25(30-23)29-17-4-3-5-19(13-17)37(34,35)32-10-8-27-9-11-32/h3-7,12-15,27H,8-11H2,1-2H3,(H,28,29,30)
InChIKey	InChI	1.06	PYFNDUMPFPAFQJ-UHFFFAOYSA-N

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.