Optimized S-Trityl-l-cysteine-Based Inhibitors of Kinesin Spindle Protein with Potent in Vivo Antitumor Activity in Lung Cancer Xenograft Models
摘要:
The mitotic kinesin Eg5 is critical for the assembly of the mitotic spindle and is a promising chemotherapy target. Previously, we identified S-trityl-L-cysteine as a selective inhibitor of Eg5 and developed triphenylbutanamine analogues with improved potency, favorable drug-like properties, but moderate in vivo activity. We report here their further optimization to produce extremely potent inhibitors of Eg5 (K-i(app) < 10 nM) with broad-spectrum activity against cancer cell lines comparable to the Phase II drug candidates ispinesib and SB-743921. They have good oral bioavailability and pharmacolcinetics and induced complete tumor regression in nude mice explanted with lung cancer patient xenografts. Furthermore, they display fewer liabilities with CYP-metabolizing enzymes and hERG compared with ispinesib and SB-743921, which is important given the likely application of Eg5 inhibitors in combination therapies. We present the case for this preclinical series to be investigated in single and combination chemotherapies, especially targeting hematological malignancies.
[EN] GLUCOPYRANOSYL DERIVATIVE AND USE THEREOF<br/>[FR] DÉRIVÉ DE GLUCOPYRANOSYLE ET UTILISATION ASSOCIÉE
申请人:SUNSHINE LAKE PHARMA CO LTD
公开号:WO2019144864A1
公开(公告)日:2019-08-01
Provided are a glucopyranosyl derivative as a sodium-dependent glucose transporters inhibitor, especially as a SGLT1 inhibitor, a pharmaceutically acceptable salt or a stereoisomer thereof, a pharmaceutical composition thereof, and the uses of the compound and pharmaceutical composition thereof in the preparation of drugs for the treatment of diabetes and diabetes-related diseases.
Synthesis of Substituted Benzaldehydes via a Two-Step, One-Pot Reduction/Cross-Coupling Procedure
作者:Dorus Heijnen、Hugo Helbert、Gert Luurtsema、Philip H. Elsinga、Ben L. Feringa
DOI:10.1021/acs.orglett.9b01274
日期:2019.6.7
The synthesis of functionalized (benz)aldehydes, via a two-step, one-pot procedure, is presented. The method employs a stable aluminum hemiaminal as a tetrahedral intermediate, protecting a latent aldehyde, making it suitable for subsequent cross-coupling with (strong nucleophilic) organometallic reagents, leading to a variety of alkyl and aryl substituted benzaldehydes. This very fast methodology
Enantiodivergent one-pot synthesis of axially chiral biaryls was developed using a catalytic amount of a chiral source. A domino organocatalyst-mediated enantioselective Michael/aldol condensation and enantiodivergent central-to-axial chirality conversion afforded chiral biaryls with excellent enantioselectivity in a single reaction vessel. A plausible reaction mechanism for the enantiodivergence was
[EN] INHIBITORS OF SODIUM GLUCOSE COTRANSPORTER 1<br/>[FR] INHIBITEURS DU COTRANSPORTEUR SODIUM GLUCOSE 1
申请人:LEXICON PHARMACEUTICALS INC
公开号:WO2014081660A1
公开(公告)日:2014-05-30
Inhibitors of sodium glucose cotransporter 1 (SGLT1), compositions comprising them, and methods of their use to treat diseases and disorders such as diabetes are disclosed. Particular compounds are of the formula (I): the various substituents of which are defined herein.