1229018-85-2Relevant articles and documents
Facile and Cost-Effective Route for the Synthesis of Simmerafil
Hu, Tianwen,Jiang, Xiangrui,Liu, Yin,Odilov, Abdullajon,Shen, Jingshan,Suo, Jin,Tian, Guanghui,Yang, Feipu
, p. 2432 - 2437 (2021/11/13)
An improved synthesis of simmerafil, a potent PDE5 inhibitor as a clinical candidate, is described with a 38.1% overall yield and 99.7% purity. Starting from the safe and inexpensive salicylamide (15), the key intermediate 2-propoxybenzimidamide (21), which is also a potential precursor for the preparation of pyrimidinone derivatives, was effectively and conveniently obtained. The subsequent process from21to simmerafil was optimized, which makes it more amenable to scale-up.
PHENYL PYRIMIDONE COMPOUNDS, PHARMACEUTICAL COMPOSITIONS, PREPARATION METHODS AND USES THEREOF
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Page/Page column 77, (2011/11/12)
The present invention relates to a class of phenylpyrimidone compounds, the pharmaceutical composition, the preparation method and the use thereof. More specifically, the present invention relates to a type of phenylpyrimidone compounds of the following f