100427-51-8Relevant articles and documents
LERCANIDIPINE HYDROCHLORIDE POLYMORPHS AND AN IMPROVED PROCESS FOR PREPARATION OF 1,1,N-TRIMETHYL-N-(3,3-DIPHENYLPROPYL)-2-AMINOETHYL ACETOACETATE
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Page/Page column 15, (2008/12/07)
Disclosed herein is an improved, commercially viable and industrially advantageous process for the preparation of substantially pure Lercanidipine intermediate, 1,1,N- trimethyl-N-(3,3-diphenylpropyl)-2-aminoethyl acetoacetate. The intermediate is useful for preparing Lercanidipine, or a pharmaceutically acceptable salt thereof, in high yield and purity. The present invention further provides a novel crystalline form of Lercanidipine hydrochloride and a process for its preparation. The present invention also provides a process for the preparation of amorphous form of Lercanidipine hydrochloride.