| Member | Definition | Role |
|---|
| 2,5-dioxopiperazine | A cyclic peptide that is piperazine in which the hydrogens at positions 2 and 5 are replaced by oxo groups. | piperazine-2,5-dione |
| ascidiacyclamide | | Ascidiacyclamide |
| bq 123 | | BQ 123 |
| lypressin | | (2S)-N-[(2S)-6-amino-1-[(2-amino-2-oxoethyl)amino]-1-oxohexan-2-yl]-1-[[(4R,7S,10S,13S,16S,19R)-19-amino-7-(2-amino-2-oxoethyl)-10-(3-amino-3-oxopropyl)-16-[(4-hydroxyphenyl)methyl]-6,9,12,15,18-pentaoxo-13-(phenylmethyl)-1,2-dithia-5,8,11,14,17-pentazacy |
| malformins | | Malformin |
| patellamide a | | Patellamide A |
| patellamide b | | Patellamide B |
| patellamide c | | Patellamide C |
| patellamide d | | Patellamide D |
| westiellamide | | Westiellamide |
| wewakazole | | Wewakazole |