A1C1U

(5S)-1-[(5-chloro-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]-5-(thiophen-2-yl)pyrrolidin-2-one

Created:	2025-11-24
Last modified:	2026-09-02

Find Related PDB Entry
1 entries where A1C1U is found as a standalone ligand

Find related ligands: Help
Similar Ligands (Stereospecific) Similar Ligands (including Stereoisomers) Similar Ligands (Quick Screen) Similar Ligands (Substructure Stereospecific) Similar Ligands (Substructure including Stereoisomers)

Chemical Details
Formal Charge	0
Atom Count	34
Chiral Atom Count	1
Bond Count	37
Aromatic Bond Count	15

2D diagram of A1C1U

Toggle Hydrogen Toggle Labels

Chemical Component Summary
Name	(5S)-1-[(5-chloro-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]-5-(thiophen-2-yl)pyrrolidin-2-one
Systematic Name (OpenEye OEToolkits)	(5~{S})-1-[(5-chloranyl-7~{H}-pyrrolo[2,3-d]pyrimidin-4-yl)amino]-5-thiophen-2-yl-pyrrolidin-2-one
Formula	C₁₄ H₁₂ Cl N₅ O S
Molecular Weight	333.796
Type	NON-POLYMER

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	14.52	Clc1c[NH]c2ncnc(NN3C(=O)CCC3c3cccs3)c12
SMILES	CACTVS	3.385	Clc1c[nH]c2ncnc(NN3[CH](CCC3=O)c4sccc4)c12
SMILES	OpenEye OEToolkits	3.1.0.0	c1cc(sc1)C2CCC(=O)N2Nc3c4c(c[nH]c4ncn3)Cl
Canonical SMILES	CACTVS	3.385	Clc1c[nH]c2ncnc(NN3[C@@H](CCC3=O)c4sccc4)c12
Canonical SMILES	OpenEye OEToolkits	3.1.0.0	c1cc(sc1)[C@@H]2CCC(=O)N2Nc3c4c(c[nH]c4ncn3)Cl
InChI	InChI	1.06	InChI=1S/C14H12ClN5OS/c15-8-6-16-13-12(8)14(18-7-17-13)19-20-9(3-4-11(20)21)10-2-1-5-22-10/h1-2,5-7,9H,3-4H2,(H2,16,17,18,19)/t9-/m0/s1
InChIKey	InChI	1.06	PJLILOYQZPLJNO-VIFPVBQESA-N

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.