17321-63-0Relevant articles and documents
Acetaminophen prodrug: Microwave-assisted synthesis and in vitro metabolism evaluation by mass spectrometry
Murie, Valter E.,Marques, Lucas M.M.,Souza, Glória E.P.,Oliveira, Anderson R.M.,Lopes, Norberto P.,Clososkic, Giuliano C.
, p. 1121 - 1128 (2016)
Propacetamol is an acetaminophen prodrug of intravenous administration used to control fever and pain of perioperative period in multimodal analgesia therapy. After injection, it is completely converted by plasma esterases into N,N-diethylglycine and acetaminophen, its active metabolite whose mechanism of action is the inhibition of prostaglandin synthesis. Herein, we report an improved protocol for the synthesis of propacetamol hydrochloride that allows the isolation of the active pharmaceutical ingredient (API) with high purity and yield. In addition, the in vitro metabolism of propacetamol in a microssomal reaction was evaluated by ion trap tandem mass spectrometry.
Propacetamol crystal form and preparation method thereof
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Paragraph 0031-0038, (2020/05/02)
The invention discloses a propacetamol crystal form and a preparation method thereof, and relates to the technical field of chemical organic synthesis. Acetaminophen and chloroacetyl chloride are usedas starting materials, the propacetamol crystal form is prepared through a chloroacetylation reaction and an ammoniation reaction, and the propacetamol crystal form is not reported in the prior art Propacetamol solid is prepared by utilizing the preparation method, and therefore, the feeding amount can be accurately controlled when the propacetamol hydrochloride is prepared through a subsequent salt forming reaction, the situation that the dosage of hydrochloric acid is too large or too small is avoided, and the problem that in the prior art, the yield and purity of the product propacetamol hydrochloride are seriously affected when the propacetamol hydrochloride is prepared through a propacetamol oily matter is solved.
Improved propacetamol hydrochloride preparation process
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Paragraph 0027; 0028, (2017/01/12)
The invention belongs to the field of synthesis of organic matters with carbon rings and provides an improved propacetamol hydrochloride preparation process. The process comprises: 1) carrying out acylation reaction to synthesize 4-acetamido phenol chlora
DUAL FUNCTIONING IONIC LIQUIDS AND SALTS THEREOF
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Page/Page column 106; 107, (2010/08/04)
Disclosed herein are ionic liquid compositions comprising active pharmaceutical, biological, and nutritional compounds, and methods of use. Further disclosed are compositions of matter including liquid ion pairs alone or in solution and their use; compositions of ionic liquids that are 'solvated,' for example, 'hydrated' and their uses.