Chemistry is traditionally divided into organic and inorganic chemistry. Computed Properties of C11H9NO5, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 69604-00-8
The disclosure relates to pyrido[2,3-d]pyrimidone compounds, to the preparation thereof and to the therapeutic use thereof, wherein said compounds are of general formula (I): in the form of a base or of an addition salt with an acid which is pharmaceutically acceptable, in the form of hydrates or of solvates, and also in the form of enantiomers, diastereoisomers and a mixture thereof. The disclosure also relates to processes for preparing said compounds, to pharmaceutical compositions containing a compound of general formula (I), and to the therapeutic use of said compounds and compositions.
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Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H3860O – PubChem