Processes for preparing dihydropyrimidine derivatives and intermediates thereof

The present invention relates to processes for preparing a dihydropyrimidine derivative having Formula (I) or a tautomer thereof having Formula (Ia), as well as a intermediate thereof. The processes of the invention have simple operation, high optical purity of product, high yield and convenient wor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Liang Jinsheng, Tu Linjin, Goldmann Siegfried, Zhang Yingjun, Liu Xinchang, Ren Qingyun, Zou Zhifu
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to processes for preparing a dihydropyrimidine derivative having Formula (I) or a tautomer thereof having Formula (Ia), as well as a intermediate thereof. The processes of the invention have simple operation, high optical purity of product, high yield and convenient work-up, which is suitable for industrial production.