Allopurinol

Allopurinol

SCHEMBL4627

Oc1ncnc2[nH]ncc12

nearest known ligand 0.61

Full drug profile on Sugi Atlas →

Known targets — ChEMBL curated mechanism

XDH

The experimentally established mechanism targets of Allopurinol. The predicted profile below is derived independently by chemical similarity — agreement is a validation signal, a miss is honest.

Predicted protein targets (top 20)

geneUniProtsupporting neighboursconfidence
XDH known ✓ P47989 2/20 0.61
RET P07949 1/20 0.61
PI4KA P42356 1/20 0.61
LRRK2 Q5S007 1/20 0.61
PI4K2B Q8TCG2 1/20 0.61
PI4K2A Q9BTU6 1/20 0.61
PI4KB Q9UBF8 1/20 0.61
PDPK1 O15530 1/20 0.55
CHEK1 O14757 1/20 0.53
AURKA O14965 1/20 0.53
CYP1A2 P05177 2/20 0.53
TTBK1 Q5TCY1 1/20 0.47
MAPK1 P28482 2/20 0.47
ALDH1A1 P00352 1/20 0.47
HPGDS O60760 1/20 0.47
AKT2 P31751 2/20 0.45
MKNK1 Q9BUB5 3/20 0.45
CCNT1 O60563 1/20 0.45
CCNA2 P20248 1/20 0.45
CDK2 P24941 1/20 0.45

Click a target to see other patent compounds predicted against it — the reverse direction, in place.

Similar compounds — the chemically nearest patent molecules

Nearest neighbours by Morgan-fingerprint cosine across the patent-compound collection, with each neighbour's top predicted target and the predicted targets it shares with this molecule.

Compoundsimilaritytop predictedshared targets
Allopurinol SCHEMBL29693720 1.00 XDH (0.61) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL4708652 1.00 XDH (0.61) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL21362860 0.98 XDH (0.59) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL6142912 0.98 XDH (0.59) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL137084 0.98 XDH (0.59) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL7202468 0.98 XDH (0.59) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL2563568 0.98 XDH (0.59) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL9245969 0.91 CYP1A2 (0.54) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL9421599 0.89 PDPK1 (0.50) XDHRETPI4KALRRK2PI4K2B
Allopurinol SCHEMBL9421602 0.89 XDH (0.50) XDHRETPI4KALRRK2PI4K2B

Similarity is cosine over the 2,048-bit Morgan fingerprint (≈ Tanimoto). Identical fingerprints score 1.00.

Patent provenance — the patents this molecule appears in, and who filed them

Appears in 44631 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:

PatentTitleAssigneePublishedPriorityFilingCountryStatus
EP-3752820-B1 METHOD FOR INSPECTING TEXTILE ARTICLES KANNEGIESSER H GMBH CO (DE) 2026-05-27 EP claimed
US-12640228-B2 Polymorphic markers for pharmacogenetic HLA risk alleles SEMA4 OPCO, INC. (US) 2026-05-26 US claimed
US-12635917-B2 Remote blood volume monitor DAXOR CORP. (US) 2026-05-26 US claimed
WO-2026106917-A1 EDIBLE TRANSMUCOSAL DRUG DELIVERY METHOD USING AN INTERMEDIATE CAPSULE AS A TEMPORARY VESSEL BioPhysics Pharma, Inc. (US) 2026-05-21 WO claimed
US-20260138935-A1 System and method for the production of chemical compounds and nutrient optimized fertilizer from animal waste products Nalari Scientific, LLC (US) 2026-05-21 US claimed
WO-2026106498-A1 PERFUSION FLUID, METHODS OF PRODUCING PERFUSION FLUID, AND ITS USES NanoSanguis S.A. (PL) 2026-05-21 WO claimed
EP-4744486-A1 PERFUSION FLUID, METHODS OF PRODUCING PERFUSION FLUID, AND ITS USES. NanoSanguis S.A. (PL) 2026-05-20 EP claimed
EP-4744487-A1 FLUID, METHODS OF PRODUCING FLUID, AND ITS USES NanoSanguis S.A. (PL) 2026-05-20 EP claimed
CN-122063206-A Method for verifying uric acid reducing action mechanism of apocynum venetum leaf extract 山东航空学院 2026-05-19 CN claimed
CN-122056884-A Methods of treating pancreatic cancer 坎莫森特里克斯公司 2026-05-19 CN claimed
EP-0148883-A1 ALLOPURINOL PRODRUGS. GEA AS (DK) 1985-07-24 EP claimed
EP-0074909-B1 COMPOSITIONS ON THE BASIS OF 5-HYDROXY-TRYPTOPHANE, MANUFACTURING PROCESS AND MEDICAMENTS CONTAINING THEM S.A. PANMEDICA Société dite: (FR) 1985-06-26 EP claimed
WO-1985000368-A1 ALLOPURINOL PRODRUGS A/S GEA (DK) 1985-01-31 WO claimed
EP-0126684-A2 Drug delivery system utilizing thermosetting gels MERCK & CO. INC. (US) 1984-11-28 EP claimed
US-4478822-A Drug delivery system utilizing thermosetting gels MERCK & CO., INC. (US) 1984-10-23 US claimed
US-4474752-A DIAMINE MODIFIED POLYOXYETHYLENE-POLYOXYPROPYLENE COPOLYMER MERCK & CO., INC. (US) 1984-10-02 US claimed
US-4472387-A 5-HYDROXYTRYPTOPHAN OR ESTER, NITROGEN HETEROCYCLE PANMEDICA S.A. (FR) 1984-09-18 US claimed
US-4426384-A PYRAZOLO(3,4-D)PYRIMIDINES Simoons, John R. A. (US) 1984-01-17 US claimed
US-4369172-A Prolonged release therapeutic compositions based on hydroxypropylmethylcellulose FOREST LABORATORIES INC. (US) 1983-01-18 US claimed
US-4111203-A OSMOTIC SYSTEM WITH MEANS FOR IMPROVING DELIVERY KINETICS OF SYSTEM ALZA CORPORATION (US) 1978-09-05 US claimed