(3S)-Butylphthalide

(3S)-Butylphthalide

SCHEMBL3756573

CCCC[C@@H]1OC(=O)c2ccccc21

nearest known ligand 1.00 ✓ in ChEMBL — recovers established targets

Full drug profile on Sugi Atlas →

Predicted protein targets (top 3)

geneUniProtsupporting neighboursconfidence
MAOB P27338 4/20 0.53
CES2 O00748 1/20 0.52
MAOA P21397 2/20 0.50

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
Rac-3-N-Butylphthalide SCHEMBL22551101 1.00 MAOB (0.53) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL27598974 1.00 MAOB (0.53) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL716879 1.00 MAOB (0.53) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL29744491 0.98 MAOB (0.52) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL21381341 0.98 MAOB (0.52) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL27742478 0.98 MAOB (0.52) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL30233285 0.98 MAOB (0.52) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL18011112 0.98 MAOB (0.52) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL38661001 0.98 MAOB (0.52) MAOBCES2MAOA
Rac-3-N-Butylphthalide SCHEMBL27997545 0.98 MAOB (0.52) MAOBCES2MAOA

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

PatentTitleAssigneePublishedPriorityFilingCountryStatus
CN-1136209-C Process for preparing optically active 3-n-butyl phenylphthaleine 中国医学科学院药物研究所 2004-01-28 CN claimed
EP-4674964-A1 RNA INTERFERENCE STRATEGIES TARGETING SMALL HEAT SHOCK PROTEIN B8 Universiteit Antwerpen (BE) 2026-01-07 EP disclosed
WO-2025127804-A1 COMPOSITION FOR PREVENTION, IMPROVEMENT, OR TREATMENT OF POOR OVARIAN RESPONDERS CAUSED BY AGING, COMPRISING BUTYLPHTHALIDE OR ACCEPTABLE SALT THEREOF AS ACTIVE INGREDIENT 한국 한의학 연구원 2025-06-19 WO disclosed
CN-118978500-A Targeted fluorine-containing butylphthalide, synthesis method and application thereof 苏州摩笛尔科技有限公司 2024-11-19 CN disclosed
US-11814352-B2 Salts formed by 2-(1-acyloxy-n-pentyl) benzoic acid and basic amino acid or aminoguanidine, and preparation method and application thereof JIANGSU KANION PHARMACEUTICAL CO., LTD. (CN) 2023-11-14 US disclosed
US-11814352-B2 Salts formed by 2-(1-acyloxy-n-pentyl) benzoic acid and basic amino acid or aminoguanidine, and preparation method and application thereof JIANGSU KANION PHARMACEUTICAL CO., LTD. (CN) 2023-11-14 US disclosed
US-20230248809-A1 METHODS, DEVICES, AND SYSTEMS FOR TREATING LENS PROTEIN AGGREGATION DISEASES GLAZIER ALAN NEIL (US) 2023-08-10 US disclosed
WO-2023150617-A2 METHODS, DEVICES, AND SYSTEMS FOR TREATING LENS PROTEIN AGGREGATION DISEASES GLAZIER ALAN NEIL (US) 2023-08-10 WO disclosed
CN-108912077-B Preparation method of chiral phthalide derivative 中国科学院上海有机化学研究所 2022-06-21 CN disclosed
US-20220024848-A1 SALTS FORMED BY 2-(1-ACYLOXY-N-PENTYL) BENZOIC ACID AND BASIC AMINO ACID OR AMINOGUANIDINE, AND PREPARATION METHOD AND APPLICATION THEREOF JIANGSU KANION PHARMACEUTICAL CO., LTD. (CN) 2022-01-27 US disclosed
US-20070265336-A1 Application of L-N-Butylphthalide in Preventing and Treating Dementia CSPC ZHONGQI PHARMACEUTICAL TECHNOLOGY (SHIJIAZHUANG) CO., LTD. (CN) 2007-11-15 US disclosed
US-20070265336-A1 Application of L-N-Butylphthalide in Preventing and Treating Dementia CSPC ZHONGQI PHARMACEUTICAL TECHNOLOGY (SHIJIAZHUANG) CO., LTD. (CN) 2007-11-15 US disclosed
US-20070112065-A1 Use of l-butylphthalide in the manufacture of medicaments for prevention and treatment of cerebral infarct SHIJIAZHUANG PHARMA. GROUP ZHONGQI PHARMACEUTICAL (CN) 2007-05-17 US disclosed
US-20070112065-A1 Use of l-butylphthalide in the manufacture of medicaments for prevention and treatment of cerebral infarct SHIJIAZHUANG PHARMA. GROUP ZHONGQI PHARMACEUTICAL (CN) 2007-05-17 US disclosed
US-20070082947-A1 Use of phthalide derivatives for the treatment and prevention of diabetes mellitus DSM IP ASSETS B.V. (NL) 2007-04-12 US disclosed
US-20070082947-A1 Use of phthalide derivatives for the treatment and prevention of diabetes mellitus DSM IP ASSETS B.V. (NL) 2007-04-12 US disclosed
WO-2006125651-A2 LIGUSTILIDE DERIVATIVES FOR THE TREATMENT OF INFLAMMATORY DISORDERS DSM IP ASSETS B.V. (NL) 2006-11-30 WO disclosed
CN-1136209-C Process for preparing optically active 3-n-butyl phenylphthaleine 中国医学科学院药物研究所 2004-01-28 CN disclosed
CN-1283621-A Process for preparing optically active 3-n-butyl phenylphthaleine INST OF MEDICINAL MATERIALS CH (CN) 2001-02-14 CN disclosed
CN-1257706-A Application of butyl phthalide in preparing medicines curing thrombosis and thrombocyte coagulation INST OF MEDICINAL MATERIALS CH (CN) 2000-06-28 CN 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 (5 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-11814352-B2 Salts formed by 2-(1-acyloxy-n-pentyl) benzoic acid and basic amino acid or aminoguanidine, and preparation method and application thereof KCNB1, KCNMB1, KCNAB1 MAOB 365/4885CES2 3160/4885MAOA 3034/4885
US-20070265336-A1 Application of L-N-Butylphthalide in Preventing and Treating Dementia PSEN1, PSEN2, BCHE MAOB 179/4885CES2 1472/4885MAOA 200/4885
US-20070082947-A1 Use of phthalide derivatives for the treatment and prevention of diabetes mellitus IAPP, SLC5A2, SLC2A4 MAOB 3399/4885CES2 3549/4885MAOA 3344/4885
US-20070112065-A1 Use of l-butylphthalide in the manufacture of medicaments for prevention and treatment of cerebral infarct GABARAPL1, GABARAPL2, NLN MAOB 328/4885CES2 1536/4885MAOA 378/4885
US-20220024848-A1 SALTS FORMED BY 2-(1-ACYLOXY-N-PENTYL) BENZOIC ACID AND BASIC AMINO ACID OR AMINOGUANIDINE, AND PREPARATION METHOD AND APPLICATION THEREOF KCNB1, KCNMB1, KCNAB1 MAOB 365/4885CES2 3160/4885MAOA 3034/4885

“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.