Phthalazinone

Phthalazinone

SCHEMBL276919

Oc1nncc2ccccc12

nearest known ligand 0.53

Full drug profile on Sugi Atlas →

Predicted protein targets (top 20)

geneUniProtsupporting neighboursconfidence
NPC1 O15118 5/20 0.52
KDM4E B2RXH2 4/20 0.52
RAB9A P51151 4/20 0.52
LMNA P02545 4/20 0.52
ALDH1A1 P00352 3/20 0.52
CYP1A2 P05177 3/20 0.52
TP53 P04637 2/20 0.52
CYP3A4 P08684 2/20 0.52
GOT1 P17174 2/20 0.52
SMN1; SMN2 Q16637 2/20 0.52
MPO P05164 2/20 0.52
CYP2D6 P10635 2/20 0.52
PKM P14618 1/20 0.52
MAOA P21397 1/20 0.52
PTGS1 P23219 1/20 0.52
THPO P40225 1/20 0.52
AOX1 Q06278 1/20 0.52
ACOX1 Q15067 1/20 0.52
MAPT P10636 3/20 0.50
BLM P54132 1/20 0.50

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
Phthalazinone SCHEMBL11770591 0.98 KDM4E (0.53) NPC1KDM4ERAB9ALMNAALDH1A1
Phthalazinone SCHEMBL28771488 0.86 EGFR (0.41) NPC1KDM4ERAB9ALMNAALDH1A1
Phthalazinone SCHEMBL28826169 0.84 EGFR (0.40) NPC1KDM4ERAB9ALMNAALDH1A1
Phthalazinone SCHEMBL27648003 0.83 CYP3A4 (0.50) NPC1KDM4ERAB9ALMNAALDH1A1
SCHEMBL14861003 0.81 NPC1 (0.39) NPC1KDM4ERAB9ALMNAALDH1A1
Phthalazinone SCHEMBL27786420 0.78 RAB9A (0.45) NPC1KDM4ERAB9ALMNAALDH1A1
SCHEMBL30523852 0.76 KDM4E (0.55) NPC1KDM4ERAB9ALMNAALDH1A1
SCHEMBL1673296 0.76 KDM4E (0.55) NPC1KDM4ERAB9ALMNAALDH1A1
SCHEMBL14283137 0.75 ESR2 (0.46) KDM4ELMNAALDH1A1CYP1A2CYP3A4
SCHEMBL17295055 0.74 NPC1 (0.53) NPC1KDM4ERAB9ALMNAALDH1A1

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 482 patents — showing the first 20. claimed = in the patent's claims; disclosed = body only.

PatentTitleAssigneePublishedPriorityFilingCountryStatus
US-20160368895-A1 PULMONARY HYPERTENSION TREATING AGENT THE UNIVERSITY OF TOKYO (JP) 2016-12-22 US claimed
CN-102822172-A Substituted naphthyridines and their use as syk kinase inhibitors BOEHRINGER INGELHEIM INT 2012-12-12 CN claimed
EP-2275095-A2 Neurogenesis by muscarinic receptor modulation Braincells, Inc. (US) 2011-01-19 EP claimed
EP-1418896-A2 ADMINISTRATION OF PHOSPHODIESTERASE INHIBITORS FOR THE TREATMENT OF PREMATURE EJACULATION Vivus, Inc. (US) 2004-05-19 EP claimed
US-20030134861-A1 Transmucosal phosphodiesterase inhibitors for the treatment of erectile dysfunction DOHERTY PAUL C (US) 2003-07-17 US claimed
US-6548490-B1 Transmucosally administering to the individual suffering with erectile dysfunction an effective amount of a phosphodiesterase inhibitor selected from type III or type iv phosphodiesterase inhibitor or both VIVUS, INC. 2003-04-15 US claimed
WO-2003000343-A2 ADMINISTRATION OF PHOSPHODIESTERASE INHIBITORS FOR THE TREATMENT OF PREMATURE EJACULATION VIVUS, INC. (US) 2003-01-03 WO claimed
EP-1237577-A2 TRANSMUCOSAL COMPOSITION CONTAINING A PHOSPHODIESTERASE INHIBITOR FOR THE TREATMENT OF ERECTILE DYSFUNCTION Vivus, Inc. (US) 2002-09-11 EP claimed
US-6403597-B1 PRETREATMENT SEXUAL INTERCOURSE VIVUS, INC. 2002-06-11 US claimed
US-20020037828-A1 Administration of phosphodiesterase inhibitors for the treatment of premature ejaculation VIVUS, INC. 2002-03-28 US claimed
US-20020004498-A1 Transmucosal administration of phosphodiesterase inhibitors for the treatment of erectile dysfunction DOHERTY PAUL C (US) 2002-01-10 US claimed
WO-2001041807-A2 TRANSMUCOSAL COMPOSITION CONTAINING A PHOSPHODIESTERASE INHIBITORS FOR THE TREATMENT OF ERECTILE DYSFUNCTION VIVUS, INC. (US) 2001-06-14 WO claimed
US-6156753-A Local administration of type III phosphodiesterase inhibitors for the treatment of erectile dysfunction VIVUS, INC. (US) 2000-12-05 US claimed
US-5585243-A SEPARATELY INCUBATING HUMAN PLATELETS WITH BLOOD SAMPLE ANDREAGENT DRUG SOLUTION TO FORM COMPLEXES, DETERMINING AMOUNT OF BOUND ANTIBODY THE BLOOD CENTER OF SOUTHEASTERN WISCONSIN, INC. (US) 1996-12-17 US claimed
WO-1995008116-A1 METHOD OF DETECTING CYTOPENIA THAT IS MEDIATED BY DRUG-DEPENDENT ANTIBODY BINDING TO BLOOD CELLS THE BLOOD CENTER OF SOUTHEASTERN WISCONSIN, INC. (US) 1995-03-23 WO claimed
JP-56068609-A None JP disclosed
JP-59048463-A None JP disclosed
EP-0086438-A1 Process and intermediates for preparing 4-hydroxymethyl-1-phthalazone derivatives Nippon Kayaku Kabushiki Kaisha (JP) 1983-08-24 EP disclosed
JP-S5668609-A PHTHALAZINOL PREPARATION NIPPON KAYAKU CO LTD 1981-06-09 JP disclosed
US-4182876-A ANTAGONIST FOR THROMBOXANE A2, USED IN TREATMENT OF CEREBRAL APOPLEXY AND MYOCARDIAL INFARCTION MASAYUKI ISHIKAWA (JP) 1980-01-08 US 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 (4 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-20030134861-A1 Transmucosal phosphodiesterase inhibitors for the treatment of erectile dysfunction PDE5A, PDE3A, PDE3B NPC1 2430/4885KDM4E 721/4885RAB9A 1052/4885
US-20020004498-A1 Transmucosal administration of phosphodiesterase inhibitors for the treatment of erectile dysfunction PDE3A, PDE5A, PDE3B NPC1 2023/4885KDM4E 2302/4885RAB9A 1257/4885
US-20020037828-A1 Administration of phosphodiesterase inhibitors for the treatment of premature ejaculation PDE5A, PDE3B, PDE3A NPC1 4750/4885KDM4E 123/4885RAB9A 2052/4885
US-20160368895-A1 PULMONARY HYPERTENSION TREATING AGENT PTGIR, AGTR1, PTGER1 NPC1 4018/4885KDM4E 4284/4885RAB9A 3391/4885

“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.