R-306465

R-306465

SCHEMBL1663202

O=C(NO)c1cnc(N2CCN(S(=O)(=O)c3ccc4ccccc4c3)CC2)nc1

nearest known ligand 1.00 ✓ in ChEMBL — recovers established targets

Full drug profile on Sugi Atlas →

Predicted protein targets (top 20)

geneUniProtsupporting neighboursconfidence
HDAC3 O15379 11/20 1.00
HDAC4 P56524 11/20 1.00
HDAC1 Q13547 11/20 1.00
HDAC7 Q8WUI4 11/20 1.00
HDAC2 Q92769 11/20 1.00
HDAC10 Q969S8 11/20 1.00
HDAC11 Q96DB2 11/20 1.00
HDAC8 Q9BY41 11/20 1.00
HDAC6 Q9UBN7 11/20 1.00
HDAC9 Q9UKV0 11/20 1.00
HDAC5 Q9UQL6 11/20 1.00
CYP2D6 P10635 2/20 0.63
CYP3A4 P08684 1/20 0.63
CYP2C19 P33261 1/20 0.63
LMNA P02545 2/20 0.59
USP2 O75604 1/20 0.59
TSHR P16473 1/20 0.59
MAPK1 P28482 1/20 0.59
HSD17B10 Q99714 1/20 0.59
ABL1 P00519 1/20 0.57

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-306465 SCHEMBL31237823 1.00 HDAC3 (1.00) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL10225878 0.96 HDAC3 (0.92) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL8250702 0.91 HDAC3 (0.83) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL12341261 0.90 HDAC6 (0.82) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL12341260 0.90 HDAC6 (0.82) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL8251579 0.88 HDAC3 (1.00) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL335493 0.88 HDAC3 (0.78) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL1618952 0.88 HDAC1 (0.78) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL8222113 0.87 HDAC1 (0.77) HDAC3HDAC4HDAC1HDAC7HDAC2
SCHEMBL1617712 0.87 HDAC1 (0.76) HDAC3HDAC4HDAC1HDAC7HDAC2

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

PatentTitleAssigneePublishedPriorityFilingCountryStatus
US-20260007676-A1 HDAC INHIBITORS FOR USE WITH NK CELL BASED THERAPIES VIRACTA THERAPEUTICS INC (US) 2026-01-08 US claimed
WO-2025151443-A1 ENDOXIFEN FOR TREATMENT OF RARE CANCERS ATOSSA THERAPEUTICS, INC. (US) 2025-07-17 WO claimed
US-20250161243-A1 MEF2 TRANSCRIPTIONAL ACTIVATORS TO TREAT NEUROLOGIC CONDITIONS THE SCRIPPS RESEARCH INSTITUTE 2025-05-22 US claimed
EP-4508211-A2 THERAPEUTIC APPLICATIONS OF CRISPR TYPE V SYSTEMS Caribou Biosciences, Inc. (US) 2025-02-19 EP claimed
US-12187698-B2 Crystalline forms of C21H22Cl2N4O2 BIOMED VALLEY DISCOVERIES, INC. (US) 2025-01-07 US claimed
US-20240390375-A1 METHODS AND COMPOSITIONS FOR TREATING VIRAL OR VIRALLY-INDUCED CONDITIONS Viracta Subsidiary, Inc. (US) 2024-11-28 US claimed
CN-118974253-A Therapeutic application of CRISPR V-type system 卡里布生物科学公司 2024-11-15 CN claimed
WO-2024192348-A2 METHODS OF TREATING HPV IN HIV-INFECTED PATIENTS OHIO STATE INNOVATION FOUNDATION (US) 2024-09-19 WO claimed
WO-2023201270-A2 THERAPEUTIC APPLICATIONS OF CRISPR TYPE V SYSTEMS CARIBOU BIOSCIENCES, INC. (US) 2023-10-19 WO claimed
US-20220324832-A1 CRYSTALLINE FORMS OF C21H22Cl2N4O2 VERTEX PHARMACEUTICALS INCORPORATED 2022-10-13 US claimed
CN-114948963-A Protein kinase inhibitor benzolactam compounds 大冢制药株式会社 2022-08-30 CN claimed
US-20220249477-A1 METHODS AND COMPOSITIONS FOR TREATING VIRAL OR VIRALLY-INDUCED CONDITIONS VIRACTA THERAPEUTICS, INC. (US) 2022-08-11 US claimed
US-9877962-B2 Piperazinyl derivatives for the treatment of cancer Pitty, Marc Henry (FR) 2018-01-30 US claimed
US-20260124214-A1 HETEROCYCLIC COMPOUNDS FOR USE IN THE TREATMENT OF CANCER ARTIOS PHARMA LIMITED (GB) 2026-05-07 US disclosed
US-20260102394-A1 PYRAZOLO[3,4-B]PYRAZINE SHP2 PHOSPHATASE INHIBITORS OTSUKA PHARMACEUTICAL CO., LTD. (JP) 2026-04-16 US disclosed
US-20260078414-A1 Materials and Methods for Treatment of Pain Related Disorders VERTEX PHARMACEUTICALS INCORPORATED (US) 2026-03-19 US disclosed
US-20070142393-A1 SULFONYL-DERIVATIVES AS NOVEL INHIBITORS OF HISTONE DEACETYLASE EMELEN KRISTOF V 2007-06-21 US disclosed
US-20070142393-A1 SULFONYL-DERIVATIVES AS NOVEL INHIBITORS OF HISTONE DEACETYLASE EMELEN KRISTOF V 2007-06-21 US disclosed
WO-2007049262-A1 Methods and compositions for the promotion of neuronal growth and the treatment of asociality and affective disorders BERAND LIMITED (IE) 2007-05-03 WO disclosed
US-7205304-B2 medicine to inhibit proliferative conditions, such as cancer and psoriasis JANSSEN PHARMACEUTICA N.V. (BE) 2007-04-17 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 (8 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-20220324832-A1 CRYSTALLINE FORMS OF C21H22Cl2N4O2 CYP2F1, H4C1; H4C2; H4C3; H4C4; H4C5; H4C6; H4C8; H4C9; H4C11; H4C12; H4C13; H4C14; H4C15; H4C16, CA4 HDAC3 2519/4885HDAC4 1315/4885HDAC1 908/4885
US-20260124214-A1 HETEROCYCLIC COMPOUNDS FOR USE IN THE TREATMENT OF CANCER CBR1, NR3C1, H4C1; H4C2; H4C3; H4C4; H4C5; H4C6; H4C8; H4C9; H4C11; H4C12; H4C13; H4C14; H4C15; H4C16 HDAC3 52/4885HDAC4 1044/4885HDAC1 372/4885
US-20260007676-A1 HDAC INHIBITORS FOR USE WITH NK CELL BASED THERAPIES HDAC9, HDAC4, HDAC5 HDAC3 5/4885HDAC4 2/4885HDAC1 11/4885
US-12187698-B2 Crystalline forms of C21H22Cl2N4O2 CYP2F1, H4C1; H4C2; H4C3; H4C4; H4C5; H4C6; H4C8; H4C9; H4C11; H4C12; H4C13; H4C14; H4C15; H4C16, CA4 HDAC3 2519/4885HDAC4 1315/4885HDAC1 908/4885
US-20260102394-A1 PYRAZOLO[3,4-B]PYRAZINE SHP2 PHOSPHATASE INHIBITORS PTPN5, PTPN1, PTPN3 HDAC3 478/4885HDAC4 736/4885HDAC1 408/4885
US-20260078414-A1 Materials and Methods for Treatment of Pain Related Disorders SCN9A, SCN7A, SCN8A HDAC3 3492/4885HDAC4 3661/4885HDAC1 4301/4885
US-20070142393-A1 SULFONYL-DERIVATIVES AS NOVEL INHIBITORS OF HISTONE DEACETYLASE HDAC3, HDAC1, HDAC11 HDAC3 1/4885HDAC4 6/4885HDAC1 2/4885
US-20250161243-A1 MEF2 TRANSCRIPTIONAL ACTIVATORS TO TREAT NEUROLOGIC CONDITIONS MEF2D, TEAD2, TEAD1 HDAC3 842/4885HDAC4 81/4885HDAC1 186/4885

“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.