1531-23-3Relevant articles and documents
ELECTRON-TRANSFER ACTIVATION. PHOTOCHEMICAL N-DEMETHYLATION OF TERTIARY AMINES
Santamaria, J.,Ouchabane, R.,Rigaudy, J.
, p. 2927 - 2928 (1989)
DAP(2+) sensitized photooxidation of some biologically active N-methylated alkaloids affords the corresponding secondary amines in excellent yields (80-95percent).
An improved process for the N-demethylation of opiate alkaloids using an iron(II) catalyst in acetate buffer
Kok, Gaik,Ashton, Trent D.,Scammellsa, Peter J.
, p. 283 - 286 (2009)
An improved process to N-demethylate opiate alkaloids utilising a solution of the ferrous porphyrin, tetrasodium 5,10,15,20-tetra(4-sulfophenyl) porphyrinatoiron(II) [=Fe(II)-TPPS (8)], in acetate buffer is described. This method provided the corresponding N-demethylated opiates in good yield with high reproducibility.
Late-Stage Conversion of a Metabolically Labile Aryl Methyl Ether-Containing Natural Product to Fluoroalkyl Analogues
Altman, Ryan A.,Ambler, Brett R.,Sorrentino, Jacob P.
, p. 5416 - 5427 (2020/05/19)
We report the conversion of aryl methyl ethers and phenols into six fluoroalkyl analogues through late-stage functionalization of a natural product-derived FDA-approved therapeutic. This series of short synthetic sequences exploits a combination of both modern and traditional methods and demonstrates that some recently reported methods do not always work as well as desired on a natural product-like scaffold. Nonetheless, reaction optimization can deliver sufficient quantities of each target analogue for medicinal chemistry purposes. In some cases, classical reactions and synthetic sequences still outcompete modern organofluorine transformations, which should encourage the continued search for improved reactions. Overall, the project provides a valuable synthetic roadmap for medicinal chemists to access a range of fluorinated therapeutic candidates with distinct physicochemical properties relative to the original O-based analogue.
COMPOSITIONS AND METHODS THEREOF
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Paragraph 00535, (2018/03/25)
Compounds of formula I, (I) or enantiomers thereof, metabolites thereof, derivatives thereof, deuterated derivatives thereof, halogenated derivatives thereof, prodrugs thereof, pharmaceutically acceptable salts thereof, N- oxides thereof, or a combination thereof, processes and intermediates for preparation thereof, compositions thereof, and uses thereof, are provided. Pharmaceutical compositions comprising a compound of formula I and a compound of Formula II: (IIa) (IIb) or enantiomers thereof, metabolites thereof, derivatives thereof, deuterated derivatives thereof, prodrugs thereof, pharmaceutically acceptable salts thereof, N-oxides thereof, or a combination thereof. Compositions and methods for improving the efficacy of DEX, or providing beneficial pharmacokinetic effects to DEX, comprising co-administering a compound of formula I or SARPO, and a compound of Formula II or DEX to a subject in need thereof, and dosage forms, drug delivery systems, methods of treatment thereof.