cas 357-08-4, Naloxone hydrochloride | Articles data

Articles about 357-08-4Total 4 be found

Caged Naloxone: Synthesis, Characterization, and Stability of 3- O -(4,5-Dimethoxy-2-nitrophenyl)carboxymethyl Naloxone (CNV-NLX)
The photolabile analogue of the broad-spectrum opioid antagonist naloxone, 3-O-(4,5-dimethoxy-2-nitrophenyl)carboxymethyl naloxone (also referred to as "caged naloxone", 3-O-(α-carboxy-6-nitroveratryl)naloxone, CNV-NLX), has been found to be a valuable biochemical probe. While the synthesis of CNV-NLX is simple, its characterization is complicated by the fact that it is produced as a mixture of αR,5R,9R,13S,14S and αS,5R,9R,13S,14S diastereomers. Using long-range and heteronuclear NMR correlations, the 1H NMR and 13C NMR resonances of both diastereomers have been fully assigned, confirming the structures. Monitoring of solutions of CNV-NLX in saline buffer, in methanol, and in DMSO has shown CNV-NLX to be stable for over a week under fluorescent laboratory lights at room temperature. Exposure of such solutions to λ 365 nm from a hand-held UV lamp led to the formation of naloxone and CNV-related breakdown products.
Lewin, Anita H.,Fix, Scott E.,Zhong, Desong,Mayer, Louise D.,Burgess, Jason P.,Mascarella, S. Wayne,Reddy, P. Anantha,Seltzman, Herbert H.,Carroll, F. Ivy
p. 563 - 567
(2018/03/27)

Method for synthesis of naloxone hydrochloride
The invention belongs to the technical field of medicament synthesis, and relates to a synthetic method of naloxone hydrochloride. The method comprises the following steps: by adopting thebaine as a starting material, oxidizing and then reducing thebaine to obtain a compound 2, reacting the compound 2 with acetic anhydride to obtain an ester compound 3, then removing methyl and performing hydrolysis to obtain a compound 4, reacting the compound 4 with an alkylating reagent (such as the reagent selected from chloropropene, bromopropene, iodopropylene or the combination thereof), performing allylation on the Nth bit of a mother nucleus structure to obtain a compound 5, then removing methyl to obtain naloxone free alkali, then forming acid addition salts with hydrochloric acid, and then refining to obtain naloxone hydrochloride which can be used as a medicinal raw material medicament. By adopting the method disclosed by the invention, a high-quality medicinal raw material medicament can be prepared.
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Paragraph 0103-0110

(2017/03/22)

Pharmaceutical combinations of oxycodone and naloxone
Disclosed in certain embodiments is a pharmaceutical composition comprising from 10 to 40 mg of oxycodone or a pharmaceutically acceptable salt thereof and 0.65 to 0.90 mg naloxone or a pharmaceutically acceptable salt thereof.
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(2008/06/13)

Process for the preparation of morphinane derivatives
The invention relates to a process for the preparation of morphinane derivatives of general formula: STR1 by demethylation of 3-methoxylated compound with a sulfonic acid selected from methanesulfonic acid and trifluoromethanesulfonic acid in the presence of a sulfide.
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(2008/06/13)