C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/238.6
C07D 281/10 (2006.01)
Patent
CA 2020158
A purification method of intermediates for preparation of Diltiazem which consists of the crystallization of mixture enantiomerically enriched in (2S,3S)-2,3-dihydro-3-hydroxy-2-(4-methoxyphenyl)--1,5-benzothiazepin-4(5H)- one is described.
Giordano Claudio
Russo Laura
Tentorio Dario
Riches Mckenzie & Herbert Llp
Zach System S.p.a.
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