Oxygen atoms

Full Title

Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings > condensed with carbocyclic rings or ring systems > Quinazolines; Hydrogenated quinazolines > with hetero atoms directly attached in position 4 > Oxygen atoms

Child Classifications

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• C07D 239/90 with acyclic radicals attached in position 2 or 3
• C07D 239/91 with aryl or aralkyl radicals attached in position 2 or 3
• C07D 239/92 with hetero atoms directly attached to nitrogen atoms of the hetero ring