the carbon atom being further bound to a carbon atom of a six-membered aromatic ring

Full Title

Derivatives of carbonic acid containing functional groups covered by groups C07C269/00 - C07C279/00 in which at least one nitrogen atom of these functional groups is further bound to another nitrogen atom not being part of a nitro or nitroso group > Compounds containing any of the groups [IMAGE cpc-sch-C07C-0973.gif], e.g. semicarbazides > the other nitrogen atom being further doubly-bound to a carbon atom, e.g. semicarbazones > the carbon atom being further bound to a carbon atom of a six-membered aromatic ring