Heterocyclic Compounds, 1-Ring. Heterocyclic Cpds, 1-Ring . 1-Ring Heterocyclic Compounds . 1-Ring Heterocyclic Cpds . Heterocyclic Compounds, 1 Ring . Heterocyclic Cpds, 1 Ring . Organic compounds that contain a ring structure made up of carbon and one or more additional elements such as nitrogen and oxygen. . 1.00
Heterocyclic Compounds, 3-Ring. Fused Heterocyclic Compounds, Three-Ring . Heterocyclic Cpds, 3 Ring . Three Ring Heterocyclic Compounds . 3-Ring Heterocyclic Compounds . Fused Heterocyclic Compounds, Three Ring . Heterocyclic Compounds, 3 Ring . A class of heterocyclic compounds that include a three-ring fused structure. Both aromatic or non-aromatic ring structures are included in this category. . 0.81
Heterocyclic Compounds, 4 or More Rings. Five Ring Heterocyclic Compounds . Four Ring Heterocyclic Compounds . Fused Heterocyclic Compounds, Five-Ring . Fused Heterocyclic Compounds, Four-Ring . Heterocyclic Compounds with Four or More Rings . Heterocyclic Compounds, 4-Ring . Heterocyclic Compounds, 5-Ring . Heterocyclic Cpds, 4 Ring . Heterocyclic Cpds, 4 or More Rings . Heterocyclic Cpds, 5 Ring . 4-Ring Heterocyclic Compounds . 5-Ring Heterocyclic Compounds . Fused Heterocyclic Compounds, Five Ring . Fused Heterocyclic Compounds, Four Ring . Heterocyclic Compounds, 4 Ring . Heterocyclic Compounds, 5 Ring . Heterocyclic Compounds with 4 or More Rings . A class of heterocyclic compounds that include four or more fused rings. Both aromatic or non-aromatic ring structures are included in this category. . 0.80
Bridged Bicyclo Compounds, Heterocyclic. Bicyclic Heterocyclic Compounds . Heterocyclic Bicyclo Compounds . Bicyclic Heterocyclic Cpds . Heterocyclic Compounds, Bicyclic . Bicyclo Compounds, Heterocyclic . Heterocyclic Cpds, Bicyclic . Heterocyclic compounds that contain two rings that share two non-adjacent atoms in common. . 0.71
