Assertion: pyrimidine's ring | /r/CapableOf | bear nitro group
Facets:
Source sentences:
text: With pyrano[2,3-d]pyrimidine compounds containing β-keto ester, the antioxidant activity is to some extent more than that of pyrano[2,3-d]pyrimidines incorporating aminocarbonitrile fragment, representing that the role of β-keto ester moiety is effective than that of aminocarbonitrile in antioxidant activity of these compounds.4j and 4k).6b with a TEAC value of 0.169 ± 0.019 μM, which contains a chromene-3-carbonitrile moiety.8a–d, which are pyrido[2,3-d]pyrimidine derivatives containing d -glucosamine, the antioxidant activity depends on the type of aryl ring, and for rings bearing nitro group (8d), a relatively good activity was obtained.
text: (47) For compounds, which are pyridopyrimidine derivatives containing-glucosamine, the antioxidant activity depends on the type of aryl ring, and for rings bearing nitro group (), a relatively good activity was obtained.