Patents Assigned to CRYSTAL PHARMATECH CO., LTD
  • Publication number: 20240018155
    Abstract: The present disclosure relates to novel crystalline form of a tosylate salt of diazadicyclic compound and preparation method thereof. Form A of formula (I) tosylate of the present disclosure have advantages in at least one aspect of solubility, melting point, stability, dissolution, hygroscopicity, adhesion, flowability, bioavailability, processability, purification ability, formulation production, and safety, etc., which provides a new and better choice for the preparation of drugs containing formula (I) tosylate, and is of great significance for the drug development.
    Type: Application
    Filed: June 8, 2021
    Publication date: January 18, 2024
    Applicant: CRYSTAL PHARMATECH CO., LTD.
    Inventors: Xia LU, Xiaoyu ZHANG
  • Publication number: 20230416207
    Abstract: Provided are a crystal form D, a crystal form AJ, a crystal form AL, a crystal form AZ, a crystal form AF, a crystal form Z and a crystal form AE of a compound of formula (I), a process for preparing the same and the use thereof. The crystal forms have advantages in at least one aspect of solubility, melting point, stability, dissolution, hygroscopicity, adhesiveness, fluidity, biological effectiveness, processability, purification effect, preparation production, safety, etc., thus providing a new better choice for the preparation of pharmaceutical preparations containing the compound of formula (I), and having important significance for drug development.
    Type: Application
    Filed: November 17, 2021
    Publication date: December 28, 2023
    Applicant: CRYSTAL PHARMATECH CO., LTD.
    Inventors: Xiaoyu ZHANG, Zhixiong CHEN, Xia LU
  • Publication number: 20230265056
    Abstract: The present disclosure relates to crystalline forms of benzamide compound and processes for preparing the same. Provided are crystalline Form J and an amorphous form of a compound of formula (I), a process for preparing the same, and use thereof. The crystalline Form J has the advantages in at least one of solubility, melting point, stability, dissolution, hygroscopicity, adhesion, fluidity, biological effectiveness, processing performance, purification, formulation production, safety, and the like, which provides a new and better choice for the preparation of pharmaceutical formulations containing the compound of formula (I), and has a very important significance for the drug development.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 24, 2023
    Applicant: CRYSTAL PHARMATECH CO., LTD.
    Inventors: Xia LU, Xiaoyu ZHANG, Ming MA
  • Publication number: 20230203040
    Abstract: The present invention relates to crystalline forms of a sulfonamide compound and processes for preparing the same. The present invention provides five Crystalline Forms B, C, D, E, and F of the compound of formula (I), and processes for preparing the same and uses thereof. The prevent invention also provides processes for preparing the Crystalline Form A. Crystalline Forms B, C, D, E, and F of the compound of formula (I) provided by the present invention have the advantages in at least one of solubility, melting point, stability, dissolution, hygroscopicity, adhesion, fluidity, biological effectiveness, processing performance, purification, formulation production, safety, and the like, which provides a new and better choice for the preparation of pharmaceutical formulations containing the compound of formula (I), and has a very important significance for the drug development.
    Type: Application
    Filed: April 27, 2021
    Publication date: June 29, 2023
    Applicant: CRYSTAL PHARMATECH CO., LTD.
    Inventors: Xia LU, Zhi ZHONG, Xiaoyu ZHANG
  • Patent number: 10577334
    Abstract: The present disclosure relates to a novel crystalline form E of Tafamidis meglumine, process for preparation and use thereof. When compared with prior crystalline forms, the novel crystalline form of the present disclosure has the advantages of simple process and low hygroscopicity, which provides a new and better choice for the development of Tafamidis meglumine drug product and is of great significance.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: March 3, 2020
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Jiaoyang Li, Xiaoyu Zhang
  • Patent number: 10562855
    Abstract: The present disclosure relates to a novel crystalline form of lenvatinib mesylate and the preparation method thereof. The novel crystalline form of mesylate of the present disclosure can be used for treating invasive and differentiated thyroid cancer. The novel crystalline form of mesylate of the present disclosure has good solubility, stability, and remarkable purification effect in process. The preparation method of this novel crystalline form is simple, low cost, and has an important value for future optimization and development of the drug.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: February 18, 2020
    Assignee: CRYSTAL PHARMATECH CO., LTD.
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaojuan Diao, Xiaoyu Zhang
  • Patent number: 10544129
    Abstract: The present disclosure relates to two novel crystalline forms of AP26113 and processes for preparation thereof. The crystalline form CS1 and crystalline form CS2 of the present disclosure have advantages in solubility and stability, are suitable for development, and provide a better choice for preparation of pharmaceutical compositions containing AP26113, which is of great significance for drug development.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: January 28, 2020
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Jinqiu Wang, Kai Liu, Xiaoyu Zhang
  • Patent number: 10508087
    Abstract: Novel crystalline forms of trisodium [3-((1S,3R)-1-biphenyl-4-ylmethyl-3-ethoxycarbonyl-1-butylcarbamoyl) propionate-(S)-3?-methyl-2?-(pentanoyl{2?-(tetrazol-5-ylate)biphenyl-4?-ylmethyl}amino)butyrate] hydrate, methods for their preparation, pharmaceutical compositions comprising these new forms, and use of them for treating or delaying progression or onset of diseases or disorders related to activity of angiotensin receptor 1 (AT1) blockage and neprilysin (NEP) inhibition, such as heart failure, are disclosed.
    Type: Grant
    Filed: March 18, 2018
    Date of Patent: December 17, 2019
    Assignees: CRYSTAL PHARMATECH CO., LTD., SUZHOU PENGXU PHARMATECH CO., LTD.
    Inventors: Minhua Chen, Yanfeng Zhang, Chaohui Yang, Xiaoyu Zhang
  • Patent number: 10487064
    Abstract: The present disclosure relates to crystalline Form 1, Form 2, Form 3 of Ponesimod, a selective S1P1 receptor modulator, and preparation methods thereof. The X-ray powder diffraction pattern of Form 1 shows characteristic peaks at 2theta values of 18.1°±0.2°, 14.6°±0.2°, 11.3°±0.2°; the X-ray powder diffraction pattern of Form 2 shows characteristic peaks at 2theta values of 3.8°±0.2°, 10.8°±0.2°, 6.1°±0.2°; the X-ray powder diffraction pattern of Form 3 shows characteristic peaks at 2theta values of 12.2°±0.2°, 6.2°±0.2°, 5.6°±0.2°. The crystalline forms in present disclosure not only have better stability but also have higher solubility compared with the prior art forms, they are more suitable for the formulation development of Ponesimod.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 26, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Jiaoyang Li, Xiaoyu Zhang
  • Publication number: 20190345120
    Abstract: The present disclosure relates to crystalline Form 1, Form 2, Form 3 of Ponesimod, a selective S1P1 receptor modulator, and preparation methods thereof. The X-ray powder diffraction pattern of Form 1 shows characteristic peaks at 2theta values of 18.1°±0.2°, 14.6°±0.2°, 11.3°±0.2°; the X-ray powder diffraction pattern of Form 2 shows characteristic peaks at 2theta values of 3.8°±0.2°, 10.8°±0.2°, 6.1°±0.2°; the X-ray powder diffraction pattern of Form 3 shows characteristic peaks at 2theta values of 12.2°±0.2°, 6.2°±0.2°, 5.6°±0.2°. The crystalline forms in present disclosure not only have better stability but also have higher solubility compared with the prior art forms, they are more suitable for the formulation development of Ponesimod.
    Type: Application
    Filed: December 23, 2016
    Publication date: November 14, 2019
    Applicants: Crystal Pharmatech Co., Ltd., Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Jiaoyang Li, Xiaoyu Zhang
  • Patent number: 10472369
    Abstract: The present disclosure relates to novel crystalline form I, form II and form III of 6-(1H-indazol-6-yl)-N-[4-(4-morpholinyl)phenyl]imidazo [1,2-a]pyrazin-8-amine mesylate, and preparation methods and use thereof. Crystalline form I is a dimesylate, and its X-ray powder diffraction pattern shows characteristic peaks at 2theta values of 5.9°±0.2°, 13.5°±0.2° and 21.8°±0.2°. Crystalline form II is a dimesylate, and its X-ray powder diffraction pattern shows characteristic peaks at 2theta values of 15.8°±±0.2°, 17.2°±0.2° and 19.5°±0.2°. Crystalline form III is a monomesylate, and its X-ray powder diffraction pattern shows characteristic peaks at 2theta values of 7.4°±0.2°, 12.9°±0.2° and 19.2°±0.2°. The crystalline forms are more suitable for drug development than prior crystalline forms, and the preparation methods for the crystalline forms are simple and repeatable and have significant value for future drug optimization and development.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 12, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Po Zou, Xiaoyu Zhang
  • Patent number: 10442775
    Abstract: The present disclosure relates to a preparation method of a trisodium AHU-377 and Valsartan co-crystal hydrate Form II. The preparation method comprises: firstly, preparing a clear solution of trisodium AHU-377 and Valsartan, the solvent of the clear solution comprises an anti-solvent and a good solvent of the target product Form II, and the boiling point of the good solvent is lower than that of the anti-solvent; secondly, evaporating the solution under vacuum to remove the good solvent and water from the system; and finally, optionally adding seed crystals of Form II or not and replenishing a mixture of water and a carrier solvent for stirring for crystallization. The method of the present disclosure can prepare Form II successfully, and the process is consistent and controllable. The obtained Form II product has high chemical purity, crystalline purity and good flowability; and the process can be scaled up, and meets the requirements of large-scale production.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: October 15, 2019
    Assignee: CRYSTAL PHARMATECH CO., LTD.
    Inventors: Minhua Chen, Yanfeng Zhang, Liang Zhang
  • Patent number: 10377757
    Abstract: The present disclosure relates to novel crystalline forms of JAK inhibitors and the preparation method thereof. The novel crystalline forms in the present disclosure can be used for the treatment of autoimmune diseases, particularly for the treatment of rheumatoid arthritis. The novel crystalline forms in the present disclosure have good stability and remarkable purification effect in process, moreover, its solubility and hygroscopicity meet the requirements for medical use. The preparation method of novel crystalline forms is simple, low cost, and has an important value for future optimization and development of the drug.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: August 13, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaojuan Diao, Nan Xia, Xiaoyu Zhang
  • Publication number: 20190218184
    Abstract: The present disclosure relates to a novel crystalline form of lenvatinib mesylate and the preparation method thereof. The novel crystalline form of mesylate of the present disclosure can be used for treating invasive and differentiated thyroid cancer. The novel crystalline form of mesylate of the present disclosure has good solubility, stability, and remarkable purification effect in process. The preparation method of this novel crystalline form is simple, low cost, and has an important value for future optimization and development of the drug.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Applicant: CRYSTAL PHARMATECH CO., LTD
    Inventors: Minhua CHEN, Yanfeng ZHANG, Xiaojuan DIAO, Xiaoyu ZHANG
  • Patent number: 10351536
    Abstract: Novel crystalline forms of lesinurad and its sodium salt, processes for their preparation, pharmaceutical compositions comprising these new forms, and use of them for treating or delaying progression or onset of diseases or disorders related to activity of uric acid transporter 1 (URAT1) proteins are disclosed. These novel forms were characterized by X-ray powder diffraction, differential scanning calorimetry, and other techniques. They can be readily prepared and are suitable for preparation of solid dosage forms owing to their ease of handling and superior pharmacological properties.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: July 16, 2019
    Assignees: Crystal Pharmatech Co., Ltd., Suzhou Pengxu Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Chaohui Yang, Xiaoyu Zhang, Peng Wang, Pixu Li
  • Patent number: 10323035
    Abstract: The present disclosure relates to novel co-crystals of a CDK inhibitor and an MEK inhibitor and the preparation methods thereof. Specifically, the present disclosure provides hydrates or anhydrates which are named as Form I, Form II and Form III. The novel co-crystals provided in the present disclosure have good stability, low hygroscopicity and high solubility, and have an important value for further optimization and development of the drug.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: June 18, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Qiyue Liu, Nan Xia, Chaohui Yang, Xiaoyu Zhang
  • Patent number: 10308641
    Abstract: The present disclosure provides crystalline form A of 3-(6-(1-(2, 2-difluorobenzo [d] [1, 3] dioxo-5-yl) cyclopropanecarboxamido)-3-methylpyridin-2-yl) benzoic acid and process of preparation thereof. The crystalline form A has low hygroscopicity, good stability, is convenient to store. It has higher solubility than that of prior art and therefore plays an important role in further optimization and development of the drug.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 4, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Kai Liu, Po Zou, Xiaoyu Zhang
  • Patent number: 10273262
    Abstract: The present invention relates to crystalline Form A of obeticholic acid and the preparation method thereof. The present invention provides Form A having characteristic peaks at 2theta value of 4.9°±0.2°, 5.2°±0.2°, 9.9°±0.2°. The present invention provides a novel crystalline form of obeticholic acid, which has good stability, good processability and other favorable properties, and is suitable for storage and usage as a final product. In addition, the preparation method is simple, low cost, and has great value for the future optimization and development of obeticholic acid.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: April 30, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaojuan Diao, Xiaoyu Zhang
  • Patent number: 10266523
    Abstract: The present disclosure relates to novel crystalline forms of N-[6-(cis-2,6-dimethylmorpholine-4-yl)pyridine-3-yl]-2-methyl-4?-(trifluoromethoxy) [1,1?-biphenyl]-3-carboxamide monophosphate, and process of preparation thereof. The crystalline form of the monophosphate of a compound of formula (I) has low hygroscopicity, is convenient to store, has better stability than that of diphosphonate in prior art, can avoid the risk of crystal transformation in the development and production of the drug. The preparation method is simple, has low cost, and has important value for further optimization and development of the drug.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: April 23, 2019
    Assignee: CRYSTAL PHARMATECH CO., LTD.
    Inventors: Minhua Chen, Yanfeng Zhang, Fei Lu, Xiaoyu Zhang
  • Publication number: 20190100519
    Abstract: The present disclosure disclosed crystalline forms of Filgotinib hydrochloride for treating or preventing JAK-associated diseases, and preparation methods, pharmaceutical compositions, and formulations thereof. The present disclosure also disclosed the use of crystalline forms of Filgotinib hydrochloride in the prevention and/or treatment of diseases associated with JAK family. In comparison to the known crystalline forms, the crystalline forms of the present disclosure show more favorable properties in terms of formulation engineering, such as higher stability under low water activity conditions, simplicity in the preparation process and/or higher solubility.
    Type: Application
    Filed: March 21, 2017
    Publication date: April 4, 2019
    Applicant: CRYSTAL PHARMATECH CO., LTD.
    Inventors: Minhua CHEN, Yanfeng ZHANG, Kai LIU, Xiaoyu ZHANG