Compounds derived from oxoacids RkE(=O)l(OH)m (l ≠ 0) by replacing an OH group by the group or derivative formed by ring substitution; N-phenyl amides, e.g. acetanilide.
Salts formed by replacement of a nitrogen-bound hydron of aniline by a metal or other cation, e.g.
Source: PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1317 (https://doi.org/10.1351/pac199567081307)