IP Library Granted Patent US 12692252
Granted Patent B2
US 12692252 · App. 18/560,632 · Granted Jul 28, 2026

Compound having anti-tumor activity and use thereof

Inventors: Yunlong Song (Shanghai, CN); Wenqing Xu (Shanghai, CN); Hongyan Kou (Shanghai, CN); Yongzhao Mu (Shanghai, CN); Qun Dang (Shanghai, CN); Pan Li (Shanghai, CN); Zhou Yin (Shanghai, CN); Jianbin Ma (Shanghai, CN); Xiaodan Fu (Shanghai, CN); Xin Cai (Shanghai, CN); Yan Li (Shanghai, CN)
Assignee: Innovstone Therapeutics Limited
C07D401/14A61K31/4725A61K31/506A61K31/519A61K31/52A61K31/53A61K31/5377A61P35/00C07D401/04C07D405/14C07D409/14C07D413/14C07D417/14C07D471/04C07D471/08C07D473/00C07D513/04
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Quick Facts
Patent No.
US 12692252
App. No.
18/560,632
Granted
Jul 28, 2026
Kind
B2
Abstract

Provided is a compound having anti-tumor activity and a use thereof. As a PRMT5 inhibitor, the compound has a structure represented by formula (I). Experiments have confirmed that these compounds have strong inhibitory effects on PRMT5 enzyme activity and tumor cell growth, and can be used as promising compounds for treating PRMT5-mediated diseases. Furthermore, a specific synthesis method is further studied. The synthesis method is simple in process, convenient to operate, and beneficial to large-scale industrial production and application.

Claims (59)

1 . A compound represented by formula (III), or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, prodrug, hydrate, solvate, or isotope-labeled analogue thereof:

wherein,

R 16 is selected from hydrogen, deuterium, halogen, hydroxy, mercapto, amino, cyano, —R 9 , —OR 9 , —SR 9 , —NH(R 9 ) and —N(R 9 )(R 10 );

at each occurrence, R 9 and R 10 are each independently selected from C1-6alkyl and C3-6cycloalkyl, or R 9 and R 10 together with the N atom to which they are connected form 4-6 membered heterocyclyl;

R 11 is selected from C6-8aryl and 5-6 membered heteroaryl, and the aryl or heteroaryl is optionally substituted by one or more of halogen, C1-6alkyl, and trifluoromethyl;

the heterocyclyl or heteroaryl contains 1, 2 or 3 heteroatoms, which are each independently selected from N, O and S.

2 . The compound represented by formula (III) according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof, wherein

R 16 is selected from hydrogen, deuterium, —R 9 , —OR 9 , —SR 9 and —N(R 9 )(R 10 ), wherein R 9 and R 10 are as defined in claim 1 .

3 . The compound represented by formula (III) according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof, wherein

R 11 is selected from phenyl, pyrrolyl, furyl, thienyl, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, pyridyl, pyrimidinyl, pyridazinyl and pyrazinyl, wherein the phenyl, pyrrolyl, furyl, thienyl, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, pyridyl, pyrimidinyl, pyridazinyl or pyrazinyl is optionally substituted by one or more of halogen, methyl, and trifluoromethyl.

4 . The compound represented by formula (III) according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof, wherein the compound represented by formula (III) has a structure represented by formula (III)A or formula (III)B:

wherein R 11 and R 16 are as defined in claim 1 .

5 . A pharmaceutical composition, which contains a compound according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof.

6 . A method for preventing and/or treating PRMT5-mediated diseases, which includes administering a therapeutically effective dose of the compound according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof to a patient.

7 . A pharmaceutical combination, comprising the compound according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof, and an additional anticancer agent or immune checkpoint inhibitor.

8 . The compound represented by formula (III) according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof, wherein

R 16 is selected from hydrogen, deuterium, —OCH 3 , —OCH 2 CH 3 , —OCH(CH 3 ) 2 , —OCH 2 CH(CH 3 ) 2 , —OC(CH 3 ) 3 , —OCH(CH 2 CH 3 ) 2 , —O-cyclopropyl, —O-cyclobutyl, —O-cyclopentyl, —O-cyclohexyl, —SCH 3 , —SCH 2 CH 3 , —SCH(CH 3 ) 2 , —SCH 2 CH(CH 3 ) 2 , —SC (CH 3 ) 3 , —SCH(CH 2 CH 3 ) 2 , —S-cyclopropyl, —S-cyclobutyl, —S-cyclopentyl, —S-cyclohexyl, azetidin-1-yl, pyrrolidin-1-yl, piperidine-1-yl and 3-azabicyclo [3.1.0] hexan-3-yl.

9 . The compound represented by formula (III) according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof, wherein

R 11 is selected from phenyl, 2-fluorophenyl, 3-fluorophenyl, 4-fluorophenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, 2-(trifluoromethyl)phenyl, 3-(trifluoromethyl)phenyl, 4-(trifluoromethyl)phenyl, thien-2-yl, thien-3-yl, 1-methyl-1H-pyrazol-3-yl, 1-methyl-1H-pyrazol-4-yl, 1-methyl-1H-pyrazol-5-yl, isoxazol-3-yl, isoxazol-4-yl, isoxazol-5-yl, thiazol-2-yl, thiazol-4-yl, thiazol-5-yl, pyridin-2-yl, pyridin-3-yl, pyridin-4-yl, pyrimidin-2-yl, pyrimidin-4-yl and pyrimidin-5-yl.

10 . The compound represented by formula (III) according to claim 1 , or stereoisomer, geometric isomer, tautomer, pharmaceutical salt, hydrate, solvate, or isotope-labeled analogue thereof, wherein the compound is selected from compounds 183, 193, 194, 202, 207, 212, 213, 214, 216, 217, 218, 220, 223, 228, 236, 243, 245, 247, 253, 269, 274, 275, 282, 284, 287, 293, 294, 315, 316, 328, 344, 356, 392, 393, and 401:

No.

Structures

183

193

194

202

207

212

213

214

216

217

218

220

223

228

236

243

245

247

253

269

274

275

282

284

287

293

294

315

316

328

344

356

392

393

401

11 . The method of claim 6 , wherein the PRMT5-mediated disease is cancer or a tumor-related disease.

12 . The method of claim 6 , wherein the PRMT5-mediated disease is lymphoma.