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 20)
| gene | UniProt | supporting neighbours | confidence | |
|---|---|---|---|---|
| ▸ | CA2 known ✓ | P00918 | 3/20 | 0.52 |
| ▸ | HTR6 known ✓ | P50406 | 4/20 | 0.45 |
| ▸ | CA1 | P00915 | 3/20 | 0.52 |
| ▸ | KEAP1 | Q14145 | 2/20 | 0.47 |
| ▸ | CA12 | O43570 | 2/20 | 0.46 |
| ▸ | CA7 | P43166 | 2/20 | 0.46 |
| ▸ | CA9 | Q16790 | 2/20 | 0.46 |
| ▸ | CA4 | P22748 | 1/20 | 0.46 |
| ▸ | IL1RN | P18510 | 1/20 | 0.45 |
| ▸ | ERAP1 | Q9NZ08 | 1/20 | 0.45 |
| ▸ | KMT2A | Q03164 | 3/20 | 0.43 |
| ▸ | MEN1 | O00255 | 1/20 | 0.42 |
| ▸ | ALDH1A1 | P00352 | 1/20 | 0.42 |
| ▸ | PKM | P14618 | 1/20 | 0.42 |
| ▸ | LMNA | P02545 | 1/20 | 0.42 |
| ▸ | HPGD | P15428 | 1/20 | 0.42 |
| ▸ | NR3C2 | P08235 | 1/20 | 0.42 |
| ▸ | PGR | P06401 | 1/20 | 0.41 |
| ▸ | AR | P10275 | 2/20 | 0.41 |
| ▸ | IKBKB | O14920 | 1/20 | 0.41 |
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 | |
|---|---|---|---|---|
| SCHEMBL3763304 | 0.98 | CA1 (0.54) | CA1CA2KEAP1CA12CA7 | |
| SCHEMBL6533144 | 0.85 | CA1 (0.56) | CA1CA2KEAP1CA12CA7 | |
| SCHEMBL28098875 | 0.83 | CA1 (0.47) | CA1CA2KEAP1CA12CA7 | |
| SCHEMBL1389557 | 0.83 | CA1 (0.47) | CA1CA2KEAP1CA12CA7 | |
| SCHEMBL12789656 | 0.81 | KEAP1 (0.52) | CA1CA2KEAP1CA12CA7 | |
| SCHEMBL3923476 | 0.81 | CA1 (0.58) | CA1CA2KEAP1CA12CA9 | |
| Hydrochloric Acid SCHEMBL29143530 | 0.81 | CA1 (0.55) | CA1CA2CA12CA7CA9 | |
| Hydrochloric Acid SCHEMBL3759241 | 0.81 | CA1 (0.55) | CA1CA2CA12CA7CA9 | |
| Hydrochloric Acid SCHEMBL29143512 | 0.81 | CA1 (0.55) | CA1CA2CA12CA7CA9 | |
| Hydrochloric Acid SCHEMBL31111910 | 0.80 | KEAP1 (0.52) | CA1CA2KEAP1IL1RNERAP1 |
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 7 patents. claimed = in the patent's claims; disclosed = body only.
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-12492199-B2 | Pyridopyrimidines as histamine H4-receptor inhibitors | FAES FARMA, S.A. (ES) | 2025-12-09 | — | — | US | disclosed |
| CN-112739699-B | Pyridopyrimidine compounds as histamine H4 receptor inhibitors | 费斯制药股份有限公司 | 2023-11-28 | — | — | CN | disclosed |
| EP-3827005-B1 | PYRIDOPYRIMIDINES AS HISTAMINE H4-RECEPTOR INHIBITORS | FAES FARMA SA (ES) | 2022-08-17 | — | — | EP | disclosed |
| US-20210300922-A1 | PYRIDOPYRIMIDINES AS HISTAMINE H4-RECEPTOR INHIBITORS | FAES FARMA, S.A. (ES) | 2021-09-30 | — | — | US | disclosed |
| EP-3827005-A1 | PYRIDOPYRIMIDINES AS HISTAMINE H4-RECEPTOR INHIBITORS | FAES FARMA, S.A. (ES) | 2021-06-02 | — | — | EP | disclosed |
| CN-112739699-A | Pyridopyrimidine compounds as histamine H4 receptor inhibitors | 费斯制药股份有限公司 | 2021-04-30 | — | — | CN | disclosed |
| WO-2020020939-A1 | PYRIDOPYRIMIDINES AS HISTAMINE H4-RECEPTOR INHIBITORS | FAES FARMA, S.A. (ES) | 2020-01-30 | — | — | 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.
| Patent | Title | Text reads most about | Predicted target · text-rank |
|---|---|---|---|
| US-20210300922-A1 | PYRIDOPYRIMIDINES AS HISTAMINE H4-RECEPTOR INHIBITORS | HRH4, HRH3, HRH2 | CA2 1846/4885HTR6 17/4885CA1 3099/4885 |
| US-12492199-B2 | Pyridopyrimidines as histamine H4-receptor inhibitors | HRH4, HRH2, HRH3 | CA2 1722/4885HTR6 22/4885CA1 3521/4885 |
“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.