Invention Grant
US07612207B2 Method for preparing clopidogrel 1,5-naphthalenedisulfonate or hydrate thereof 失效
制备1,5-萘二磺酸氯吡格雷或其水合物的方法

Method for preparing clopidogrel 1,5-naphthalenedisulfonate or hydrate thereof
Abstract:
The present invention relates to a method for preparing clopidogrel 1,5-naphthalenedisulfonate or a hydrate thereof, which comprises reacting a clopidogrel-acid addition salt with disodium 1,5-naphthalenedisulfonate or its hydrate in water, or a mixture of water and an organic solvent. High quality clopidogrel 1,5-naphthalenedisulfonate can be prepared by the inventive method by way of using non-corrosive disodium 1,5-naphthalenedisulfonate.
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