⚠ Novel chemotype — no close known analogue (best Tanimoto < 0.3). Unexplored chemical space relative to ChEMBL.
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.
| Compound | similarity | top predicted | shared targets | |
|---|---|---|---|---|
| SCHEMBL347164 | 1.00 | — | — | |
| SCHEMBL1091935 | 1.00 | — | — | |
| Hydrochloric Acid SCHEMBL347994 | 0.98 | ACHE (0.34) | — | |
| Hydrochloric Acid SCHEMBL347993 | 0.98 | ACHE (0.34) | — | |
| Hydrochloric Acid SCHEMBL21243978 | 0.98 | ACHE (0.34) | — | |
| Hydrochloric Acid SCHEMBL475087 | 0.98 | ACHE (0.34) | — | |
| Hydrochloric Acid SCHEMBL346915 | 0.98 | ACHE (0.34) | — | |
| SCHEMBL15450836 | 0.83 | — | — | |
| SCHEMBL4775678 | 0.82 | KDM1A (0.33) | — | |
| SCHEMBL4775672 | 0.82 | KDM1A (0.33) | — |
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
Claimed or disclosed in 49 patents — showing the first 20. claimed = in the patent's claims; disclosed = body only.
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-12637451-B2 | Amino quinazoline derivatives as P2X3 inhibitors | CHIESI FARMACEUTICI S.P.A. (IT) | 2026-05-26 | — | — | US | disclosed |
| US-12466820-B2 | Amino quinazoline derivatives as P2X3 inhibitors | CHIESI FARMACEUTICI S.P.A. (IT) | 2025-11-11 | — | — | US | disclosed |
| EP-4251620-B1 | AMINO QUINAZOLINE DERIVATIVES AS P2X3 INHIBITORS | CHIESI FARM SPA (IT) | 2025-04-16 | — | — | EP | disclosed |
| CN-113891745-B | As P2X3Aminoquinazoline derivatives of inhibitors | 奇斯药制品公司 | 2024-05-07 | — | — | CN | disclosed |
| US-20240025880-A1 | AMINO QUINAZOLINE DERIVATIVES AS P2X3 INHIBITORS | CHIESI FARMACEUTICI S.P.A. (IT) | 2024-01-25 | — | — | US | disclosed |
| CN-116601149-A | Aminoquinazoline derivatives as P2X3 inhibitors | 奇斯药制品公司 | 2023-08-15 | — | — | CN | disclosed |
| US-20230219954-A1 | P2X3 AND/OR P2X2/3 COMPOUNDS AND METHODS | ASANA BIOSCIENCES, LLC | 2023-07-13 | — | — | US | disclosed |
| US-11685736-B2 | P2X3 and/or P2X2/3 compounds and methods | ABS DEVELOPMENT 1, INC. (US) | 2023-06-27 | — | — | US | disclosed |
| US-20230092892-A1 | AMINO QUINAZOLINE DERIVATIVES AS P2X3 INHIBITORS | CHARLES RIVER DISCOVERY RESEARCH SERVICES UK LIMITED (GB) | 2023-03-23 | — | — | US | disclosed |
| US-20230062975-A1 | HEPATITIS B CAPSID ASSEMBLY MODULATORS | SPRING MILL PHARMA, INC. | 2023-03-02 | — | — | US | disclosed |
| EP-3083619-A1 | P2X3 AND/OR P2X2/3 COMPOUNDS AND METHODS | Asana BioSciences, LLC (US) | 2016-10-26 | — | — | EP | disclosed |
| US-20160296501-A1 | P2X3 AND/OR P2X2/3 COMPOUNDS AND METHODS | ASANA BIOSCIENCES, LLC (US) | 2016-10-13 | — | — | US | disclosed |
| WO-2015185485-A1 | USE OF SUBSTITUTED OXADIAZOLES FOR COMBATING PHYTOPATHOGENIC FUNGI | BASF SE (DE) | 2015-12-10 | — | — | WO | disclosed |
| WO-2015095128-A1 | P2X3 AND/OR P2X2/3 COMPOUNDS AND METHODS | ASANA BIOSCIENCES, LLC (US) | 2015-06-25 | — | — | WO | disclosed |
| EP-2411001-A1 | P2X3, RECEPTOR ANTAGONISTS FOR TREATMENT OF PAIN | Merck Sharp & Dohme Corp. (US) | 2012-02-01 | — | — | EP | disclosed |
| EP-2358371-A1 | P2X3, RECEPTOR ANTAGONISTS FOR TREATMENT OF PAIN | Merck Sharp & Dohme Corp. (US) | 2011-08-24 | — | — | EP | disclosed |
| WO-2010111060-A1 | P2X3, RECEPTOR ANTAGONISTS FOR TREATMENT OF PAIN | MERCK SHARP & DOHME CORP. (US) | 2010-09-30 | — | — | WO | disclosed |
| EP-2215048-A1 | P2X3 RECEPTOR ANTAGONISTS FOR TREATMENT OF PAIN | Merck Sharp & Dohme Corp. (US) | 2010-08-11 | — | — | EP | disclosed |
| WO-2010051188-A1 | P2X3, RECEPTOR ANTAGONISTS FOR TREATMENT OF PAIN | MERCK SHARP & DOHME CORP. (US) | 2010-05-06 | — | — | WO | disclosed |
| WO-2009058299-A1 | P2X3 RECEPTOR ANTAGONISTS FOR TREATMENT OF PAIN | MERCK & CO., INC. (US) | 2009-05-07 | — | — | WO | disclosed |