Chloroquine

Chloroquine

SCHEMBL8933

CCN(CC)CCCC(C)Nc1ccnc2cc(Cl)ccc12

nearest known ligand 1.00 ✓ in ChEMBL — recovers established targets

Full drug profile on Sugi Atlas →

Predicted protein targets (top 20)

geneUniProtsupporting neighboursconfidence
CHRM2 P08172 3/20 1.00
CHRM4 P08173 3/20 1.00
CHRM5 P08912 3/20 1.00
ADRA2A P08913 3/20 1.00
CHRM1 P11229 3/20 1.00
ADRA2B P18089 3/20 1.00
ADRA2C P18825 3/20 1.00
CHRM3 P20309 3/20 1.00
KCNH2 Q12809 3/20 1.00
TMEM97 Q5BJF2 2/20 1.00
SIGMAR1 Q99720 2/20 1.00
ACE2 Q9BYF1 2/20 1.00
NR4A2 P43354 2/20 1.00
CYP2D6 P10635 2/20 1.00
PRNP P04156 2/20 1.00
MTOR P42345 2/20 1.00
CYP2C19 P33261 1/20 1.00
TDP1 Q9NUW8 1/20 1.00
APP P05067 1/20 1.00
NQO2 P16083 1/20 1.00

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
(R)-Chloroquine SCHEMBL29429108 1.00 CHRM2 (1.00) CHRM2CHRM4CHRM5ADRA2ACHRM1
(R)-Chloroquine SCHEMBL134500 1.00 CHRM2 (1.00) CHRM2CHRM4CHRM5ADRA2ACHRM1
Chloroquine SCHEMBL29363614 1.00 CHRM2 (1.00) CHRM2CHRM4CHRM5ADRA2ACHRM1
Chloroquine SCHEMBL8474661 1.00 CHRM2 (1.00) CHRM2CHRM4CHRM5ADRA2ACHRM1
Chloroquine SCHEMBL8934 1.00 CHRM2 (1.00) CHRM2CHRM4CHRM5ADRA2ACHRM1
Chloroquine SCHEMBL23854336 0.99 CHRM2 (0.98) CHRM2CHRM4CHRM5ADRA2ACHRM1
Chloroquine SCHEMBL3302947 0.99 CHRM2 (0.98) CHRM2CHRM4CHRM5ADRA2ACHRM1
Chloroquine SCHEMBL5488804 0.99 CHRM2 (0.98) CHRM2CHRM4CHRM5ADRA2ACHRM1
Chloroquine SCHEMBL9862220 0.99 CHRM2 (0.98) CHRM2CHRM4CHRM5ADRA2ACHRM1
Chloroquine SCHEMBL22534361 0.99 CHRM2 (0.98) CHRM2CHRM4CHRM5ADRA2ACHRM1

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

Appears in 64224 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:

PatentTitleAssigneePublishedPriorityFilingCountryStatus
EP-4228644-B1 N-[4-[1-(1,4-DIOXASPIRO[4.5]DEC-8-YL)-4-(8-OXA-3-AZABICYCLO[3.2.1]OCT-3-YL)-1H-PYRAZOLO[3,4-D]PYRIMIDIN-6-YL]PHENYL]-N'-METHYLUREA FOR USE IN THE TREATMENT OF COVID19 NANTCELL INC (US) 2026-05-27 EP claimed
EP-4748374-A1 REMDESIVIR TREATMENT METHODS Gilead Sciences, Inc. (US) 2026-05-27 EP claimed
EP-3607938-B1 PHARMACEUTICAL COMPOSITION SOVIC BRKICIC LJILJANA (HR) 2026-05-27 EP claimed
CN-122094963-A Cardioprotective lipids and methods of use 2026-05-26 CN claimed
CN-122081398-A Application of chloroquine in improving gene editing efficiency 2026-05-26 CN claimed
US-20260139860-A1 PRODUCTS OF MANUFACTURE FOR THE TREATMENT, PREVENTION AND AMELIORATION OF MICROBIAL INFECTIONS CENTRE FOR DIGESTIVE DISEASES (AU) 2026-05-21 US claimed
US-20260137680-A1 NOVEL COMPOUNDS SITRYX THERAPEUTICS LTD (GB) 2026-05-21 US claimed
US-20260141455-A1 LOCATION BASED DATABASE SYSTEM DASHBOARDS EXPRESS SCRIPTS STRATEGIC DEV INC (US) 2026-05-21 US claimed
US-20260138973-A1 SUBSTITUTED PYRIDINES FOR USE IN TREATING OR PREVENTING INFLAMMATORY DISEASES OR DISEASES ASSOCIATED WITH AN UNDESIRABLE IMMUNE RESPONSE SITRYX THERAPEUTICS LTD (GB) 2026-05-21 US claimed
WO-2026101534-A1 MYOSTATIN AND ACTIVIN A IMMUNOGENS AND METHODS OF USE VAXXINITY, INC. (US) 2026-05-15 WO claimed
WO-1983003055-A1 CYTOTIXIC DRUG FORMED BY THE ASSOCIATION OF AT LEAST ONE IMMUNOTOXINE AND CHLOROQUINE JANSEN, FRANZ 1983-09-15 WO claimed
EP-0088694-A1 Cytotoxic medicine containing at least one immune toxine and chloroquine ELF SANOFI (FR) 1983-09-14 EP claimed
EP-0069097-A2 Pharmaceutical mixture Astra Läkemedel Aktiebolag (SE) 1983-01-05 EP claimed
EP-0056766-A1 Process for the preparation of 4-amino-chloroquinolines RHONE-POULENC SANTE (FR) 1982-07-28 EP claimed
EP-0037175-A1 Pharmaceutical compositions EFAMOL LIMITED (GB) 1981-10-07 EP claimed
EP-0035856-A2 Pharmaceutical and dietary compositions EFAMOL LIMITED (GB) 1981-09-16 EP claimed
EP-0001796-B1 ANTI-MALARIA DRUG HOECHST AKTIENGESELLSCHAFT (DE) 1981-06-10 EP claimed
US-4260615-A Antimalarial compositions HOECHST AKTIENGESELLSCHAFT (DE) 1981-04-07 US claimed
US-4181725-A BROMOPHENACYL BROMIDE, TOCOPHEROL, MEPACRINE, (HYDROXY)CHLOROQUINE, DIBUCAINE, TETRACAINE, LIDOCAINE, BUTACAINE, PROCAINE, EDTA THE REGENTS OF THE UNIVERSITY OF MICHIGAN (US) 1980-01-01 US claimed
EP-0001796-A1 Anti-malaria drug HOECHST AKTIENGESELLSCHAFT (DE) 1979-05-16 EP claimed