In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 153559-48-9 as follows. Product Details of 153559-48-9
Example 3: Preparation of bexaroteneTo suspension of methyl 4-[l-(5,6,7,8-tetrahydro-3, 5,5,8, 8-pentamethyl-2-naphthalenyl)-l- ethenyljbenzoate (100 g) in methanol (1000 ml), 5N aqueous potassium hydroxide (170 ml) was added at 25-30C and the reaction mixture was refluxed for 8 hours. After completion of reaction (monitored by HPLC), reaction mass was cooled to 35-40 C and washed with 50% ethyl acetate: n-heptane mixture (2 x 500 ml). The organic layer was discarded and the aqueous layer was cooled to 10-15 C. Thereafter pH of aqueous layer was adjusted to 1-2 by addition of concentrated hydrochloric acid (100 ml). The resulting mixture was then stirred at 20-25C, stirred for 1 hour and precipitated solid was filtered. The resulting solid was slurry washed with demineralized water (100 ml), centrifuged and dried to give 84.6 g of title compound having purity 98.89 %, none of the impurities C, D, E, F were detected by HPLC
According to the analysis of related databases, 153559-48-9, the application of this compound in the production field has become more and more popular.
Reference:
Patent; IND-SWIFT LABORATORIES LIMITED; BHIRUD, Shekhar, Bhaskar; SARIN, Gurdeep, Singh; SHARMA, Bimal, Kumar; GERA, Pardeep; WO2011/141928; (2011); A1;,
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