C07D291/00—Heterocyclic compounds containing rings having nitrogen, oxygen and sulfur atoms as the only ring hetero atoms
C07D291/02—Heterocyclic compounds containing rings having nitrogen, oxygen and sulfur atoms as the only ring hetero atoms not condensed with other rings
C07D291/06—Six-membered rings
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Chemical & Material Sciences
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Organic Chemistry
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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