[EN] HOT MELT EXTRUDED SOLID DISPERSIONS CONTAINING A BCL2 INHIBITOR<br/>[FR] DISPERSIONS SOLIDES EXTRUDÉES À CHAUD CONTENANT UN INHIBITEUR DE BCL2
申请人:NEWAVE PHARMACEUTICAL INC
公开号:WO2021173523A1
公开(公告)日:2021-09-02
A pro-apoptotic solid dispersion comprises, a Bcl -2 family protein inhibitory compound of Formula A as defined herein, dispersed in a solid matrix that comprises (a) a pharmaceutically acceptable water-soluble polymeric carrier, and (b) a pharmaceutically acceptable surfactant. A process for preparing such a solid dispersion comprises subjecting to elevated temperature the compound of Formula A, the water-soluble polymeric carrier, and the surfactant to provide an extrudable semi-solid mixture; extruding the semi-solid mixture; and cooling the resulting extrudate to provide a solid matrix comprising the polymeric carrier, and the surfactant and having the compound dispersed in essentially non-crystalline form therein. The solid dispersion is suitable for oral administration to a subject in need thereof for treatment of a disease characterized by overexpression of one or more anti-apoptotic Bcl -2 family proteins, for example cancer or an immune or autoimmune disease.
Diethyl 3-bromo-3,3-difluoropropyl acetal: preparation and SnCl4-promoted cross-coupling reaction with trimethylsilyl enol ethers
作者:Sheng Peng、Feng-Ling Qing
DOI:10.1016/s0022-1139(99)00294-8
日期:2000.4
The radical addition of dibromodifluoromethane to ethyl vinyl ether in ethanol under Na2S2O4 initiation affords diethyl 3-bromo-3,3-difluoropropyl acetal (1) in high yield. SnCl4-promoted cross-coupling reaction of 1 with trimethylsilylenolethers (2) yield γ-bromodifluoromethyl-β-ethoxy ketones (3).
在Na 2 S 2 O 4引发下,将二溴二氟甲烷自由基加成至乙醇中的乙基乙烯基醚中,从而以高收率得到3-乙基-3溴-3,3-二氟丙基缩醛(1)。SnCl 4促进1与三甲基甲硅烷基烯醇醚的交叉偶联反应(2)生成γ-溴二氟甲基-β-乙氧基酮(3)。
Palladium(0)/Copper(I)-Cocatalyzed Cross-Coupling of the Zinc Reagent of Ethyl 3-Bromo-3,3-difluoropropionate with Aryl (Alkenyl) Halides: An Efficient Stereoselective Synthesis of β-Fluoro-α,β-unsaturated Esters
作者:Sheng Peng、Feng-Ling Qing、Yi-Qun Li、Chang-Ming Hu
DOI:10.1021/jo991276w
日期:2000.2.1
Na2S2O4 initiation, followed by oxidation of the acetal with Caro acid. The treatment of 1 with active zinc dust in anhydrous DMF at room temperature produced the zinc reagent ZnBrCF2CH2CO2C2H5 (2). The cross coupling of the zinc reagent 2 with aryl (alkenyl) halides (R−X) in DMF using Pd(0)−Cu(I) as cocatalyst stereoselectively provided the β-fluoro-α,β-unsaturated esters (RCFCHCO2C2H5 4) directly and
Free-Radical Additions Involving Fluorine Compounds. VII.<sup>1</sup> The Addition of Perhaloalkanes to Vinyl Ethyl Ether and Vinyl 2,2,2-Trifluoroethyl Ether