New Advances in Chemical Research in 2021. Irreversible inhibitors are therefore the equivalent of poisons in heterogeneous catalysis. 127-17-3, Name is 2-Oxopropanoic acid, molecular formula is C3H4O3, Recommanded Product: 2-Oxopropanoic acid, belongs to benzisoxazole compound, is a common compound. In a patnet, author is Solanki, Pavankumar V., once mentioned the new application about 127-17-3.
The present work describes an improved and efficient process for the synthesis of paliperidone (1), an antipsychotropic agent. The synthesis comprises the DBU (1,8-diazabicycloundec-7-ene) catalyzed N-alkylation of 3-(2-chloroethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]-pyrimidin-4-one (5) with 6-fluoro-3-piperidin-4-yl-1,2 benzisoxazole hydrochloride (6) in methanol as the solvent and diisopropylamine as a base to yield paliperidone (1) with 85% yield and over 97% purity by HPLC. The present work also describes an industrially efficient purification process for the removal of critical process related impurities (8 and 9) in paliperidone (1). The process furnished 1 with an overall yield of about 60% and 99.85% purity.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 127-17-3. Recommanded Product: 2-Oxopropanoic acid.
Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics