Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Patent, the author is and a compound is mentioned, HPLC of Formula: C11H14ClN3S, 3-Piperazinobenzisothiazole hydrochloride, introducing its new discovery. HPLC of Formula: C11H14ClN3S
PROCESS FOR THE PREPARATION OF ZIPRASIDONE (5-[2-[4-(1,2-BENZISOTHIAZOL-3-Y1)-1-PIPERAZINY1]ETHY1]-6-CHLORO-1,3-DIHYDRO-2H-INDOL-2-ONE)
The present invention provides a new and useful process for preparing 5-[2-[4-(1,2-benzisothiazol-3-yl)-1-piperazinyl]ethyl]-6-chloro-1,3-dihydro-2H-indol-2-one (ziprasidone) and methods for its purification. The process comprises the steps of: (i) mixing 6-chloro-5-(2-chloroethyl)-1,3-dihydro-2H-indol-2-one with either a free base or salt form of 3-(1-piperazinyl)-1,2-benzoisothiazole, in the presence of an alkaline compound and a high-boiling polar organic solvent or mixture of high boiling polar organic solvents, (ii) heating the mixture and stirring for a sufficient amount of time to obtain ziprasidone formation, (iii) cooling the mixture, adding it to water and filtering off the product, (iv) adding water to the product and stirring the suspension, and (v) isolating crude ziprasidone.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. HPLC of Formula: C11H14ClN3S, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 87691-88-1, in my other articles.
Reference£º
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com