Known targets — ChEMBL curated mechanism
ABL1ACEACHEACVR1ADRA1AADRA1BADRA1DADRA2AADRA2BADRA2CADRB1ADRB2ADRB3AGTR1ALKAVPR1AAVPR2BCHEBCRCA2CACNA1ACACNA1BCACNA1CCACNA1DCACNA1ECACNA1FCACNA1GCACNA1HCACNA1ICACNA1SCACNA2D1CACNA2D2CACNA2D3CACNA2D4CACNB1CACNB2CACNB3CACNB4CACNG1CACNG2CACNG3CACNG4CACNG5CACNG6CACNG7CACNG8CALCRLCASRCCR5CDK4CDK6CFBCHRM1CHRM2CHRM3CHRM4CHRM5CHRNA1CHRNA3CHRNA7CHRNB1CHRNB4CHRNDCHRNECHRNGCOXFA4COXFA4L2CRBNCSF1RCUL4ACYP19A1DDB1DPP4DRD1DRD2DRD3DRD4EDNRAEGFREML4ERBB2ERBB4ESR1ESR2FGFR1FGFR3FLT1FLT3FLT4GAAGABRA1GABRA2GABRA3GABRA4GABRA5GABRA6GABRB1GABRB2GABRB3GABRDGABREGABRG1GABRG2GABRG3GABRPGABRQGHSRGLAGNRHRGPD2GRIN1GRIN2AGRIN2BGRIN2CGRIN2DGRIN3AGRIN3BGSTP1HCN4HCRTR1HCRTR2HDAC1HDAC10HDAC11HDAC2HDAC3HDAC4HDAC5HDAC6HDAC7HDAC8HDAC9HRH1HRH2HRH3HSD11B1HSP90AA1HSP90AB1HTR1AHTR1BHTR1DHTR1EHTR1FHTR2AHTR2BHTR2CHTR3AHTR3BHTR3CHTR3DHTR3EHTR4HTR5AHTR6HTR7IMPDH1IMPDH2ITGA2BITGB3ITKJAK1JAK2KCNA1KCNA10KCNA2KCNA3KCNA4KCNA5KCNA6KCNA7KCNB1KCNB2KCNC1KCNC2KCNC3KCNC4KCND1KCND2KCND3KCNF1KCNG1KCNG2KCNG3KCNG4KCNH1KCNH2KCNH3KCNH4KCNH5KCNH6KCNH7KCNH8KCNJ2KCNJ3KCNJ5KCNK3KCNK9KCNQ1KCNQ2KCNQ3KCNQ4KCNQ5KCNS1KCNS2KCNS3KCNV1KCNV2KDRKITKLKB1LCKMMAOAMAOBMAPK14METMMP1MMP13MMP7MMP8MT-ND1MT-ND2MT-ND3MT-ND4MT-ND4LMT-ND5MT-ND6NDUFA1NDUFA10NDUFA11NDUFA12NDUFA13NDUFA2NDUFA3NDUFA5NDUFA6NDUFA7NDUFA8NDUFA9NDUFAB1NDUFAF1NDUFAF2NDUFAF3NDUFAF4NDUFB1NDUFB10NDUFB11NDUFB2NDUFB3NDUFB4NDUFB5NDUFB6NDUFB7NDUFB8NDUFB9NDUFC1NDUFC2NDUFS1NDUFS2NDUFS3NDUFS4NDUFS5NDUFS6NDUFS7NDUFS8NDUFV1NDUFV2NDUFV3NR3C1NS5ANTRK1NTRK2NTRK3ODC1OPRD1OPRK1OPRM1P2RY12PAHPARP1PDE3APDE3BPDE4APDE4BPDE4CPDE4DPDE5APDE7APDE7BPDE8APDE8BPDGFRAPDGFRBPIK3CAPIK3CDPNPPOLA1POLA2POLD1POLD2POLD3POLD4POLEPOLE2POLE3PPARGPRIM1PRIM2PRKCAPRKCBPRKCDPRKCEPRKCGPRKCHPRKCIPRKCQPRKCZPRKD1PRKD3PTGS1PTGS2RBX1RENRETROCK1ROCK2RPE65RRM1RRM2RRM2BS1PR1S1PR2S1PR3S1PR4S1PR5SCN10ASCN11ASCN1ASCN2ASCN3ASCN4ASCN5ASCN7ASCN8ASCN9ASCNN1ASCNN1BSCNN1GSIGMAR1SLC18A2SLC6A1SLC6A2SLC6A3SLC6A4SLC9A3SRCTACR1TOP1TOP2ATOP2BTTRTYMPdacAdacBdacCembAfolAftsIgyrAgyrBmrcAmrcBmrdAparCparEpolrplArplBrplCrplDrplErplFrplIrplJrplKrplLrplMrplNrplOrplPrplQrplRrplSrplTrplUrplVrplWrplXrplYrpmArpmBrpmCrpmDrpmErpmE2rpmFrpmGrpmG1rpmG2rpmG3rpmHrpmIrpmJrpsArpsBrpsCrpsDrpsErpsFrpsGrpsHrpsIrpsJrpsKrpsLrpsMrpsNrpsOrpsPrpsQrpsRrpsSrpsTrpsUykgMykgO
The experimentally established mechanism targets of Hydrochloric Acid. The predicted profile below is derived independently by chemical similarity — agreement is a validation signal, a miss is honest.
Predicted protein targets (top 15)
| gene | UniProt | supporting neighbours | confidence | |
|---|---|---|---|---|
| ▸ | PDE4B known ✓ | Q07343 | 11/20 | 0.78 |
| ▸ | PDE4D known ✓ | Q08499 | 11/20 | 0.78 |
| ▸ | PDE4A known ✓ | P27815 | 11/20 | 0.78 |
| ▸ | PDE4C known ✓ | Q08493 | 10/20 | 0.78 |
| ▸ | MAPK14 known ✓ | Q16539 | 1/20 | 0.64 |
| ▸ | CA2 known ✓ | P00918 | 1/20 | 0.63 |
| ▸ | CA12 | O43570 | 1/20 | 0.63 |
| ▸ | CA1 | P00915 | 1/20 | 0.63 |
| ▸ | CA4 | P22748 | 1/20 | 0.63 |
| ▸ | CA6 | P23280 | 1/20 | 0.63 |
| ▸ | CA7 | P43166 | 1/20 | 0.63 |
| ▸ | TPMT | P51580 | 1/20 | 0.63 |
| ▸ | CA9 | Q16790 | 1/20 | 0.63 |
| ▸ | CA14 | Q9ULX7 | 1/20 | 0.63 |
| ▸ | KMT2A | Q03164 | 1/20 | 0.60 |
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 | |
|---|---|---|---|---|
| SCHEMBL30009845 | 0.98 | PDE4B (0.80) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL1028427 | 0.98 | PDE4B (0.80) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL7336609 | 0.97 | PDE4D (0.78) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL9005494 | 0.97 | PDE4D (0.78) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL6799815 | 0.93 | PDE4B (0.71) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL28846183 | 0.92 | PDE4B (0.70) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL16544966 | 0.90 | PDE4B (0.67) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL27472680 | 0.88 | PDE4D (0.68) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL7444846 | 0.87 | PDE4A (1.00) | PDE4BPDE4DPDE4APDE4CMAPK14 | |
| SCHEMBL128167 | 0.87 | PDE4B (0.70) | PDE4BPDE4DPDE4APDE4CMAPK14 |
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.
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-20040043999-A1 | Phthalazine derivatives as phosphodiesterase 4-inhibitors | ZAMBON GROUP S.P.A | 2004-03-04 | — | — | US | disclosed |
| EP-1042300-B1 | PHTHALAZINE DERIVATIVES USEFUL AS PHOSPHODIESTERASE 4 INHIBITORS | ZAMBON SPA (IT) | 2004-02-11 | — | — | EP | disclosed |
| US-6589951-B1 | N right-arrowO derivatives and pharmaceutically acceptable salt thereof are PDE 4 and TNF pharmaceutically acceptable salt thereof are PDE 4 and TNF alpha inhibitors. | ZAMBON GROUP S.P.A. (IT) | 2003-07-08 | — | — | US | disclosed |
| EP-1042300-A1 | PHTHALAZINE DERIVATIVES PHOSPHODIESTERASE 4 INHIBITORS | ZAMBON GROUP S.p.A. (IT) | 2000-10-11 | — | — | EP | disclosed |
| US-6103729-A | PREVENTION OR TREATMENT OF RESPIRATORY SYSTEM RELATED DISEASES, E.G., BRONCHIAL ASTHMA; ENZYME INHIBITOR OF PHOSPHODIESTERASE IV; ANTIINFLAMMATORY AND SPASMODIC AGENTS; RELAXANTS | CHEIL JEDANG CORP. (KR) | 2000-08-15 | — | — | US | disclosed |
| WO-1999032456-A1 | PHTHALAZINE DERIVATIVES PHOSPHODIESTERASE 4 INHIBITORS | ZAMBON GROUP S.P.A. (IT) | 1999-07-01 | — | — | WO | disclosed |
| WO-1998056756-A1 | CATECHOL AMINO ACID DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM | CHEIL JEDANG CORPORATION (KR) | 1998-12-17 | — | — | WO | disclosed |
| US-5814651-A | PHOSPHODIESTERASE TYPE FOUR INHIBITORS | PFIZER INC. (US) | 1998-09-29 | — | — | US | disclosed |
| WO-1998023620-A1 | CATHECOL DERIVATIVES AND A METHOD FOR THE PREPARATION THEREOF AND A PHARMACEUTICAL COMPOSITION CONTAINING THE SAME | CHEIL JEDANG CORPORATION (KR) | 1998-06-04 | — | — | WO | disclosed |
| EP-0672031-A1 | CATECHOL DIETHERS AS SELECTIVE PDE IV? INHIBITORS | PFIZER INC. (US) | 1995-09-20 | — | — | EP | disclosed |
| WO-1994012461-A1 | CATECHOL DIETHERS AS SELECTIVE PDEIV INHIBITORS | PFIZER INC. (US) | 1994-06-09 | — | — | 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 (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-20040043999-A1 | Phthalazine derivatives as phosphodiesterase 4-inhibitors | PDE5A, PDE3B, PDE3A | PDE4B 9/4885PDE4D 22/4885PDE4A 7/4885 |
“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.