A Superior Method for the Reduction of Secondary Phosphine Oxides
作者:Carl A. Busacca、Jon C. Lorenz、Nelu Grinberg、Nizar Haddad、Matt Hrapchak、Bachir Latli、Heewon Lee、Paul Sabila、Anjan Saha、Max Sarvestani、Sherry Shen、Richard Varsolona、Xudong Wei、Chris H. Senanayake
DOI:10.1021/ol0517832
日期:2005.9.1
to be outstanding reductants for secondaryphosphineoxides (SPOs). All classes of SPOs can be readily reduced, including diaryl, arylalkyl, and dialkyl members. Many SPOs can now be reduced at cryogenic temperatures, and conditions for preservation of reducible functional groups have been found. Even the most electron-rich and sterically hindered phosphineoxides can be reduced in a few hours at 50-70
[EN] PROCESS FOR PREPARATION OF PROSTACYCLIN DERIVATIVES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS DE PROSTACYCLINE
申请人:EMCURE PHARMACEUTICALS LTD
公开号:WO2017130109A1
公开(公告)日:2017-08-03
Disclosed is an improved method of synthesis for Treprostinil comprising condensation reaction of compound (4) with a hydroxyl-protected alkynol (5) to give the condensation product, compound (6). Subjecting compound (6) to oxidation, reduction, hydroxyl protection and carbonylation, cyclization reactions gives the tricyclic derivative (10). Further reactions comprising reduction, hydrogenation and deprotection of the phenolic and side-chain hydroxyl groups, wherein the sequence and choice of reagents is governed by protecting groups, give the triol intermediate, compound (14). Cyanoalkylation at phenolic hydroxyl functionality and further hydrolysis yields the prostacyclin compound, Treprostinil (1) and its pharmaceutically acceptable salts with desired purity.
[EN] HETEROAROMATIC AND HETEROBICYCLIC AROMATIC DERIVATIVES FOR THE TREATMENT OF FERROPTOSIS-RELATED DISORDERS<br/>[FR] DÉRIVÉS AROMATIQUES HÉTÉROBICYCLIQUES ET HÉTÉROAROMATIQUES POUR LE TRAITEMENT DE TROUBLES LIÉS À LA FERROPTOSE
申请人:COLLABORATIVE MEDICINAL DEV LLC
公开号:WO2020185738A1
公开(公告)日:2020-09-17
The present application discloses heteroaromatic and heterobicyclic aromatic derivative compounds and compositions, and methods for treating ferroptosis-related disorders and diseases in patients using the compounds and compositions as disclosed herein.
[EN] CERAMIDE GALACTOSYLTRANSFERASE INHIBITORS FOR THE TREATMENT OF DISEASE<br/>[FR] INHIBITEURS DE LA CÉRAMIDE GALACTOSYLTRANSFÉRASE POUR LE TRAITEMENT DE MALADIES
申请人:BIOMARIN PHARM INC
公开号:WO2017214505A1
公开(公告)日:2017-12-14
Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with the enzyme ceramide galactosyltransferase (CGT), such as, for example, lysosomal storage diseases. Examples of lysosomal storage diseases include, for example, Krabbe disease and Metachromatic Leukodystrophy.
Direct Conversion of Phosphonates to Phosphine Oxides: An Improved Synthetic Route to Phosphines Including the First Synthesis of Methyl JohnPhos
作者:Alexander J. Kendall、Chase A. Salazar、Patrick F. Martino、David R. Tyler
DOI:10.1021/om500854u
日期:2014.11.10
reaction intermediate. A diverse array of phosphonates was converted to phosphine oxides using a variety of Grignard reagents for direct carbon–phosphorus functionalization. This new methodology especially simplifies the synthesis of dimethylphosphino (RPMe2)-type phosphines by using air-, water-, and silica-stable intermediates. To highlight this reaction, a new Buchwald-type ligand ([1,1′-biphenyl]-