Pyridopyridazinone

Pyridopyridazinone

SCHEMBL6637552

O=c1c2cccnc2c(-c2cccc([N+](=O)[O-])c2)nn1Cc1ccncc1

nearest known ligand 1.00 ✓ in ChEMBL — recovers established targets

Full drug profile on Sugi Atlas →

Predicted protein targets (top 10)

geneUniProtsupporting neighboursconfidence
PDE4A P27815 9/20 1.00
PDE4D Q08499 8/20 1.00
PDE4C Q08493 5/20 1.00
PDE4B Q07343 4/20 1.00
PDE3B Q13370 1/20 0.73
PDE3A Q14432 1/20 0.73
CFTR P13569 3/20 0.44
IDO1 P14902 1/20 0.42
ALDH1A1 P00352 1/20 0.42
CTSB P07858 1/20 0.42

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
Pyridopyridazinone SCHEMBL31427010 1.00 PDE4A (1.00) PDE4APDE4DPDE4CPDE4BPDE3B
Pyridopyridazinone SCHEMBL31427009 1.00 PDE4A (1.00) PDE4APDE4DPDE4CPDE4BPDE3B
Pyridopyridazinone SCHEMBL7367220 0.99 PDE4A (0.98) PDE4APDE4DPDE4CPDE4BPDE3B
SCHEMBL7363642 0.93 PDE4A (0.87) PDE4APDE4DPDE4CPDE4BPDE3B
SCHEMBL7364068 0.92 PDE4A (0.85) PDE4APDE4DPDE4CPDE4BPDE3B
SCHEMBL7366130 0.90 PDE4A (0.82) PDE4APDE4DPDE4CPDE4BPDE3B
SCHEMBL7362628 0.89 PDE4A (0.81) PDE4APDE4DPDE4CPDE4BPDE3B
SCHEMBL7364816 0.87 PDE4A (0.76) PDE4APDE4DPDE4CPDE4BPDE3B
SCHEMBL8697092 0.86 PDE4A (0.75) PDE4APDE4DPDE4CPDE4BPDE3B
SCHEMBL7370218 0.86 PDE4A (0.75) PDE4APDE4DPDE4CPDE4BPDE3B

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

PatentTitleAssigneePublishedPriorityFilingCountryStatus
EP-1418896-A2 ADMINISTRATION OF PHOSPHODIESTERASE INHIBITORS FOR THE TREATMENT OF PREMATURE EJACULATION Vivus, Inc. (US) 2004-05-19 EP claimed
WO-2003000343-A2 ADMINISTRATION OF PHOSPHODIESTERASE INHIBITORS FOR THE TREATMENT OF PREMATURE EJACULATION VIVUS, INC. (US) 2003-01-03 WO claimed
EP-1418896-A2 ADMINISTRATION OF PHOSPHODIESTERASE INHIBITORS FOR THE TREATMENT OF PREMATURE EJACULATION Vivus, Inc. (US) 2004-05-19 EP disclosed
US-20040014761-A1 Treatment of female sexual dysfunction with phosphodiesterase inhibitors VIVUS, INC. 2004-01-22 US disclosed
WO-2003000343-A2 ADMINISTRATION OF PHOSPHODIESTERASE INHIBITORS FOR THE TREATMENT OF PREMATURE EJACULATION VIVUS, INC. (US) 2003-01-03 WO disclosed
US-6403597-B1 PRETREATMENT SEXUAL INTERCOURSE VIVUS, INC. 2002-06-11 US disclosed
US-20020037828-A1 Administration of phosphodiesterase inhibitors for the treatment of premature ejaculation VIVUS, INC. 2002-03-28 US disclosed
EP-0612321-B1 PYRIDO PYRIDAZINONE AND PYRIDAZINTHIONE COMPOUNDS WITH PDE IV INHIBITING ACTIVITY SYNTEX INC (US) 1999-08-25 EP disclosed
US-5716954-A ANTIINFLAMMATORY AGENT, ANTIHISTAMINES, IMMUNOSUPPRESSION,AUTOIMMUNE DISEASES SYNTEX U.S.A. INC. (US) 1998-02-10 US disclosed
EP-0612321-A1 PYRIDO PYRIDAZINONE AND PYRIDAZINTHIONE COMPOUNDS WITH PDE IV INHIBITING ACTIVITY SYNTEX (U.S.A.) INC. (US) 1994-08-31 EP disclosed
WO-1993007146-A1 BENZO AND PYRIDO PYRIDAZINONE AND PYRIDAZINTHIONE COMPOUNDS WITH PDE IV INHIBITING ACTIVITY SYNTEX (U.S.A.) INC. (US) 1993-04-15 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 (2 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-20020037828-A1 Administration of phosphodiesterase inhibitors for the treatment of premature ejaculation PDE5A, PDE3B, PDE3A PDE4A 5/4885PDE4D 6/4885PDE4C 7/4885
US-20040014761-A1 Treatment of female sexual dysfunction with phosphodiesterase inhibitors PDE3A, PDE3B, PDE12 PDE4A 6/4885PDE4D 11/4885PDE4C 8/4885

“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.