Anhui New Star Pharmaceutical Development Co., Ltd.

Anhui New Star Pharmaceutical Devlopment Co., Ltd.

Degang Li

Ziao Xu

Xiaoxiang Li

Yuanhai Zhao

Yonghai Zhao

Yumei Xu

Genling Jiang

A P2Y12 receptor antagonist containing a guanidyl, and a preparation method and the use thereof. In particular, the present disclosure provides a pyridazinone-guanidine compound that is a compound of structural formula (I), or a stereoisomer of the above-mentioned compound, a pro-drug thereof, a pharmaceutically acceptable salt thereof or a pharmaceutically acceptable solvate thereof. Such a compound has multiple pharmacological activities, especially has an inhibitory effect on platelet aggregation, and can be used for preparing an anti-platelet aggregation pharmaceutical composition.

Guanidyl-containing P2Y12 receptor antagonist and preparation method and application thereof

The invention discloses a novel intermediate for preparing tapentadol and analogs thereof, wherein the structural formula is shown as formula I or II, and the groups are defined as the specification. The invention further discloses a method for preparing the novel intermediate and use of the intermediate for preparing tapentadol and analogs thereof. The invention can remarkably improve the product yield and quality of tapentadol, reduce the production cost, and simplify the production procedure. The preparation process is environment friendly, thus more suitable for the requirements of industrial production. 

intermediate used for preparing tapentadol or analogues thereof

Intermediate used for preparing tapentadol or analogues thereof

The invention discloses a novel intermediate for preparing tapentadol and analogues thereof, wherein the structural formula is shown as formula I or II, and the groups are defined as the specification. The invention further discloses a method for preparing the novel intermediate and use of the intermediate for preparing tapentadol and analogues thereof. The invention can remarkably improve the product yield and quality of tapentadol, reduce the production cost, and simplify the production procedure. The preparation process is environment friendly, thus more suitable for the requirements of industrial production. 

Intermediate for preparing tapentadol or analogues thereof

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Anhui, China

Degang Li