Pyridazine

Pyridazine

SCHEMBL2162869

CC(=O)O.c1ccnnc1

nearest known ligand 0.47

Full drug profile on Sugi Atlas →

Known targets — ChEMBL curated mechanism

ADRA2AADRA2BADRA2CADRB2AGTR1AVPR1AAVPR1BAVPR2BDKRB2CALCRCHRNA3CHRNB4ESR1ESR2GHSRGNRHRGSC1HSPA8MALT1MC1RMC4RNOS1NOS2NOS3OPRK1OXTRRAMP1RAMP2RAMP3SCN5ASSTR1SSTR2SSTR3SSTR4SSTR5dacAdacBdacCfolPftsImrcAmrcBmrdArplArplBrplCrplDrplErplFrplJrplKrplLrplMrplNrplOrplPrplQrplRrplSrplTrplUrplVrplWrplXrplYrpmArpmBrpmCrpmDrpmErpmFrpmGrpmHrpmIrpmJrpsArpsBrpsCrpsDrpsErpsFrpsGrpsHrpsIrpsJrpsKrpsLrpsMrpsNrpsOrpsPrpsQrpsRrpsSrpsTrpsUykgMykgO

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

Predicted protein targets (top 16)

geneUniProtsupporting neighboursconfidence
FFAR3 O14843 1/20 0.47
LCK P06239 1/20 0.47
FYN P06241 1/20 0.47
ALDH1A1 P00352 1/20 0.39
NAPRT Q6XQN6 4/20 0.35
LMNA P02545 3/20 0.35
P4HTM Q9NXG6 1/20 0.35
L3MBTL1 Q9Y468 1/20 0.35
HCAR2 Q8TDS4 1/20 0.35
TSHR P16473 1/20 0.33
TDP1 Q9NUW8 1/20 0.33
CES2 O00748 2/20 0.32
CES1 P23141 2/20 0.32
KMT2A Q03164 1/20 0.31
HSD17B10 Q99714 2/20 0.31
HTT P42858 1/20 0.30

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
Pyridazine SCHEMBL28630845 1.00 FFAR3 (0.47) FFAR3LCKFYNALDH1A1NAPRT
Pyridazine SCHEMBL30071072 1.00 FFAR3 (0.47) FFAR3LCKFYNALDH1A1NAPRT
Pyridazine SCHEMBL25427017 0.97 FFAR3 (0.44) FFAR3LCKFYNALDH1A1NAPRT
Pyridazine SCHEMBL17962960 0.89 FFAR3 (0.37) FFAR3LCKFYNALDH1A1NAPRT
Pyridazine SCHEMBL7889331 0.86 CA1 (0.39) ALDH1A1NAPRTLMNAP4HTML3MBTL1
Oxalic Acid SCHEMBL27823009 0.83 NAPRT (0.36) NAPRTLMNAP4HTML3MBTL1HCAR2
Benzene SCHEMBL10625833 0.82 FFAR3 (0.70) FFAR3LCKFYNALDH1A1NAPRT
Pyridazine SCHEMBL27653386 0.82
Pyridazine SCHEMBL25427016 0.81 CA1 (0.53) ALDH1A1L3MBTL1TDP1
Pyridine SCHEMBL28350653 0.81 NAPRT (0.45) FFAR3LCKFYNALDH1A1NAPRT

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 15 patents. claimed = in the patent's claims; disclosed = body only.

PatentTitleAssigneePublishedPriorityFilingCountryStatus
CN-101903382-B Heterocyclic antiviral compounds HOFFMANN LA ROCHE 2012-11-28 CN claimed
CN-101903382-A Heterocyclic antiviral compounds HOFFMANN LA ROCHE 2010-12-01 CN claimed
US-20250270198-A1 PYRIDONE COMPOUNDS AS TRPA1 INHIBITORS D. E. SHAW RESEARCH, LLC 2025-08-28 US disclosed
US-20250154139-A1 PYRIDAZINONE COMPOUNDS AS TRPA1 INHIBITORS D. E. SHAW RESEARCH, LLC 2025-05-15 US disclosed
EP-4519250-A1 PYRIDONE COMPOUNDS AS TRPA1 INHIBITORS D.E. Shaw Research, LLC (US) 2025-03-12 EP disclosed
EP-4472624-A2 PYRIDAZINONE COMPOUNDS AS TRPA1 INHIBITORS D.E. Shaw Research, LLC (US) 2024-12-11 EP disclosed
CN-118973564-A Pyridazinone compounds as TRPA1 inhibitors D·E·萧尔研究有限责任公司 2024-11-15 CN disclosed
WO-2023215775-A1 PYRIDONE COMPOUNDS AS TRPA1 INHIBITORS D. E. SHAW RESEARCH, LLC (US) 2023-11-09 WO disclosed
WO-2023150591-A2 PYRIDAZINONE COMPOUNDS AS TRPA1 INHIBITORS D.E. SHAW RESEARCH, LLC (US) 2023-08-10 WO disclosed
US-8987312-B2 Alpha-keto heterocycles as FAAH inhibitors THE SCRIPPS RESEARCH INSTITUTE (US) 2015-03-24 US disclosed
WO-2013130020-A1 QUERCETIN DERIVATIVES, THEIR PHARMACEUTICAL COMPOSITION AND USE ÚSTAV EXPERIMENTÁLNEJ FARMAKOLÓGIE A TOXIKOLÓGIE SAV (SK) 2013-09-06 WO disclosed
CN-101903382-B Heterocyclic antiviral compounds HOFFMANN LA ROCHE 2012-11-28 CN disclosed
US-20110183947-A1 ALPHA-KETO HETEROCYCLES AS FAAH INHIBITORS THE SCRIPPS RESEARCH INSTITUTE (US) 2011-07-28 US disclosed
CN-101903382-A Heterocyclic antiviral compounds HOFFMANN LA ROCHE 2010-12-01 CN disclosed
WO-2010005572-A2 ALPHA-KETO HETEROCYCLES AS FAAH INHIBITORS THE SCRIPPS RESEARCH INSTITUTE (US) 2010-01-14 WO disclosed

Patent text — is the patent's own abstract consistent with the prediction?

For each of this compound's patents that has machine-readable text (3 of them — usually the abstract, not the full specification), we ask MedCPT which protein the text reads most about, and where the chemistry-predicted target lands among 4885 human targets. A high rank means the patent's own wording is consistent with the prediction — a weak, independent signal, not proof of activity.

PatentTitleText reads most aboutPredicted target · text-rank
US-20250154139-A1 PYRIDAZINONE COMPOUNDS AS TRPA1 INHIBITORS TRPA1, TRPV1, TRPV5 FFAR3 561/4885LCK 904/4885FYN 2339/4885
US-20110183947-A1 ALPHA-KETO HETEROCYCLES AS FAAH INHIBITORS FAAH, FAAH2, FADS1 FFAR3 65/4885LCK 4033/4885FYN 4056/4885
US-20250270198-A1 PYRIDONE COMPOUNDS AS TRPA1 INHIBITORS TRPA1, TRPV1, TRPV6 FFAR3 2892/4885LCK 1406/4885FYN 3185/4885

“Text reads most about” is the patent abstract's nearest protein in MedCPT space (background-debiased). Only ~1.4% of patents have machine-readable text, so most compounds won't have this panel.