330785-82-5Relevant articles and documents
A kind of avanafil impurity D and synthesis method and application thereof
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, (2022/01/12)
The present invention provides a new aphranarfil impurity and synthesis method thereof, by synthesizing and characterizing the impurity, the structure of the impurity is determined, the drug impurity profile of avanafil is perfected, the resulting product is of high purity, can be used as a control for drug quality control research.
Preparation method of avanafil intermediate
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Paragraph 0025; 0037; 0038; 0041-0052, (2018/11/03)
The invention provides a preparation method of an avanafil intermediate. The preparation method comprises the following steps: dissolving a starting raw material 4-(3-chloro-4-methoxybenzylamino)5-ethoxycarbonyl-2-methylthiopyrimidine in a reaction solven
Prodrugs Of Bicyclic Substituted Pyrimidine Type PDE-5 Inhibitors
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, (2016/03/13)
Provided are prodrugs of a bicyclic substituted pyrimidine type PDE-5 inhibitors, pharmaceutically acceptable salts or stereoisomers thereof. Also provided are methods for preparing these prodrug compounds, pharmaceutical preparations, and pharmaceutical compositions, as well as a use of these compounds, pharmaceutical preparations and pharmaceutical compositions in the manufacture of medicaments for treatment and/or prophylaxis of sexual dysfunction and lower urinary tract symptoms.