Predicted protein targets (top 2)
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.
| Compound | similarity | top predicted | shared targets | |
|---|---|---|---|---|
| Hydrochloric Acid SCHEMBL6779907 | 0.99 | PDE5A (0.91) | PDE5APDE2A | |
| SCHEMBL1962546 | 0.95 | PDE5A (1.00) | PDE5APDE2A | |
| Hydrochloric Acid SCHEMBL6594721 | 0.94 | PDE5A (1.00) | PDE5APDE2A | |
| Hydrochloric Acid SCHEMBL6773871 | 0.94 | PDE5A (1.00) | PDE5APDE2A | |
| Hydrochloric Acid SCHEMBL4219631 | 0.94 | PDE5A (1.00) | PDE5APDE2A | |
| Hydrochloric Acid SCHEMBL29801632 | 0.94 | PDE5A (1.00) | PDE5APDE2A | |
| SCHEMBL7687603 | 0.93 | PDE5A (0.84) | PDE5APDE2A | |
| Hydrochloric Acid SCHEMBL6784151 | 0.91 | PDE5A (0.81) | PDE5APDE2A | |
| SCHEMBL7076855 | 0.91 | PDE5A (0.91) | PDE5APDE2A | |
| SCHEMBL7682425 | 0.90 | PDE5A (0.81) | PDE5APDE2A |
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 2 patents. claimed = in the patent's claims; disclosed = body only.
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-20030105074-A1 | Phthalazine compounds and therapeutic agents for erectile dysfunction | EISAI CO., LTD. | 2003-06-05 | — | — | US | claimed |
| EP-1057819-A1 | PHTHALAZINE DERIVATIVES AND REMEDIES FOR ERECTILE DYSFUNCTION | Eisai Co., Ltd. (JP) | 2000-12-06 | — | — | EP | claimed |
Patent text — is the patent's own abstract consistent with the prediction?
For each of this compound's patents that has machine-readable text (1 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.
| Patent | Title | Text reads most about | Predicted target · text-rank |
|---|---|---|---|
| US-20030105074-A1 | Phthalazine compounds and therapeutic agents for erectile dysfunction | CLIC1, CBR1, CBR3 | PDE5A 4/4885PDE2A 9/4885 |
“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.