the carbon skeleton containing also rings other than six-membered aromatic rings

Full Title

Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones > having amino groups bound to acyclic carbon atoms of the carbon skeleton > the carbon skeleton being unsaturated > and containing six-membered aromatic rings > the carbon skeleton containing also rings other than six-membered aromatic rings