tetracyclines

https://doi.org/10.1351/goldbook.T06287
A subclass of @P04734@ having an octahydrotetracene-2-carboxamide skeleton, substituted with many hydroxy and other groups, e.g. chlortetracycline:
T06287.png
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1371 [Terms] [Paper]