537013-51-7Relevant articles and documents
HETEROCYCLIC COMPOUND INTERMEDIATE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
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Paragraph 0416-0418, (2021/10/07)
Disclosed by the invention is a heterocyclic compound, an intermediate, and a preparation method therefor and an application thereof. Provided by the invention are a heterocyclic compound as shown in formula I, and a stereoisomer, a geometric isomer, a tautomer, a nitrogen oxide, a hydrate, a solvate, a metabolite, an ester, a pharmaceutically acceptable salt or a prodrug thereof. The heterocyclic compound hasa high P2X3 antagonistic activity, and has good selectivity, low toxicity, good metabolic stability and little taste influence.
First-Generation Asymmetric Synthesis of the Selective Estrogen Receptor Degrader GDC-9545 (Giredestrant) Featuring a Highly Efficient Pictet-Spengler Reaction and a C-N Coupling Reaction
Chung, Cheol K.,Clagg, Kyle,Gosselin, Francis,Lim, Ngiap-Kie,Wuitschik, Georg,Xu, Jie,Zhang, Haiming
, (2021/11/18)
An asymmetric synthesis of the selective estrogen receptor degrader GDC-9545 (1) is described. The synthesis features a Friedel-Crafts indole functionalization and a strain-release aminoazetidine formation to construct the two key starting materials 2 and 4, respectively, a diastereoselective Pictet-Spengler reaction (98% yield, 95:5 dr) to assemble the tetrahydrocarboline core, and a highly efficient Pd-catalyzed C-N coupling (90% yield) using [t-BuBrettPhos Pd(allyl)]OTf as the catalyst and DBU as the base to furnish the final C-N bond. This expedient route produces GDC-9545·tartrate active pharmaceutical ingredient in a longest linear sequence of six steps in 37% overall yield with 99.0 area % HPLC purity without chromatographic purification.
Efficient Manufacturing Process for the Selective Estrogen Receptor Degrader GDC-9545 (Giredestrant) via a Crystallization-Driven Diastereoselective Pictet-Spengler Condensation
Angelaud, Rémy,Chung, Cheol K.,Clagg, Kyle,Dalziel, Michael E.,Fettes, Alec,Finet, Laure,Gosselin, Francis,Jenny, Christian,Kammerer, Michael,Lim, Ngiap-Kie,Mack, Kyle A.,McClory, Andrew,Wuitschik, Georg,Xu, Jie,Zhang, Haiming
, (2021/11/24)
GDC-9545 is a selective estrogen receptor degrader that is being developed as a treatment for ER+/HER2- breast cancer. A robust, convergent manufacturing process for GDC-9545 was developed. The process features a Wenker aziridine synthesis to produce the key starting material tryptamine 11, a highly efficient C-N coupling between aminoazetidine 9 and 2,6-difluoro-4-bromobenzaldehyde diethyl acetal (33) to construct key intermediate 10, and a crystallization-driven diastereoselective Pictet-Spengler reaction to furnish the active pharmaceutical ingredient GDC-9545·tartrate.
BRD9 BIFUNCTIONAL DEGRADERS AND THEIR METHODS OF USE
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Page/Page column 247; 248, (2021/04/01)
The disclosure provides BRD9 bifunctional compounds of Formula (A) or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof, to their preparation, to pharmaceutical compositions comprising them, and to their use in the treatment of diseases and disorders mediated by a bromodomain-containing protein, such as bromodoma in-containing protein 9 (BRD9)
Discovery of 4-Aminoquinoline-3-carboxamide derivatives as potent reversible Bruton's tyrosine kinase inhibitors for the treatment of rheumatoid arthritis
Yao, Xia,Sun, Xiuyun,Jin, Shuyu,Yang, Ling,Xu, Hongjiang,Rao, Yu
, p. 6561 - 6574 (2019/08/20)
A structure-hopping strategy was applied to discover a series of novel 4-aminoquinoline-3-carboxamide derivatives as potent, reversible BTK inhibitors. Compared to the previously described cinnoline scaffold compounds, the 4-aminoquinoline analogues showed significantly improved drug-like properties, especially in their aqueous solubility. The most potent compound, 25, displayed a stronger inhibitory effect on both BTKWT (IC50 = 5.3 nM) and BTKC481S (IC50 = 39 nM). In a rodent collagen-induced arthritis model, compound 25 efficiently reduced paw swelling without a loss in body weight. On the basis of potency, drug-like properties, stability, and noncovalent mode of inhibition, our representative inhibitors could have a promising profile to be treatments for a wide range of autoimmune diseases.
Micromolecular reversible BTK inhibitor for treating rheumatoid arthritis
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Paragraph 0157-0161, (2019/07/29)
The invention relates to a micromolecular reversible BTK inhibitor for treating rheumatoid arthritis, and specifically provides a compound. The compound is the compound as shown in a formula I, or a stereisomer, a geometrical isomer and a tautomer thereof, nitric oxide, aquo-complex, a solvate, a metabolite and pharmaceutically acceptable salts and prodrugs. The inventor finds that polysubstitutedquinolone compound or derivate thereof as shown in formula I can be used as the BTK inhibitor and is high in activity during treating rheumatoid arthritis.
Inhibiting effect of trisubstituted pyrimidine derivative on protein kinase
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Paragraph 0020-0023, (2019/09/14)
The invention discloses a trisubstituted pyrimidine derivative with a structure shown as general formula (I), and pharmaceutically acceptable salt, ester or solvent compound thereof. The derivative isa protein kinase inhibitor, can be used individually or in combination with other drugs for cancer treatment, and has tremendous clinical application value. General formula (I) is shown as the specification.
Pd-Catalyzed, ortho C-H Methylation and Fluorination of Benzaldehydes Using Orthanilic Acids as Transient Directing Groups
Chen, Xiao-Yang,Sorensen, Erik J.
supporting information, p. 2789 - 2792 (2018/03/08)
The direct, Pd-catalyzed ortho C-H methylation and fluorination of benzaldehydes have been accomplished using commercially available orthanilic acids as transient directing groups. In these reactions, the 1-fluoro-2,4,6-trimethylpyridinium salts can be either a bystanding F+ oxidant or an electrophilic fluorinating reagent. An X-ray crystal structure of a benzaldehyde ortho C-H palladation intermediate was obtained using triphenylphosphine as the stabilizing ligand.
Synthesis and Transformations of Functionalized Benzosiloxaboroles
Czub, Maja,Durka, Krzysztof,Luliński, Sergiusz,?osiewicz, Justyna,Serwatowski, Janusz,Urban, Mateusz,Wo?niak, Krzysztof
, p. 818 - 826 (2017/02/15)
The synthesis and characterization of a series of fluorinated benzosiloxaboroles bearing synthetically useful formyl and cyano groups is reported. These compounds have been obtained by multistep syntheses starting with simple halogenated benzenes. The general synthetic protocol was based on the generation of ortho-boronated aryldimethylsilanes which undergo dehydrogenative cyclization upon hydrolytic workup due to activation of the Si–H bond by the adjacent boronic group. In some cases the synergy of adjacent boron- and silicon-based functionalities resulted in an unexpected hydrosilylation of the CHO group under mild aqueous conditions. The reduction of a benzosiloxaborole derivative bearing the formyl group at the ortho position with respect to the boron atom resulted in a structural transformation reflecting the higher stability of the carboxaborole heterocycle with respect to its silicon counterpart. Thus, a unique heterocyclic system featuring a central 10-membered ring comprising two borasiloxane linkages was isolated.
IRAK4 INHIBITING AGENTS
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Page/Page column 74, (2017/09/24)
Provided are compounds of Formula I, or pharmaceutically acceptable salts thereof, and methods for their use and production. Formula (I) The compounds are IRAK-4 inhibitors useful for treating an inflammatory disease, an autoimmune disease, cancer, a cardiovascular disease, a disease of the central nervous system, a disease of the skin, an ophthalmic disease and condition, and a bone disease.