Any lactone in which the cyclic carboxylic ester group forms a part of a cyclic macromolecule.
| Member | Definition | Role |
|---|
| 22,23-dihydroavermectin b(1)a | A macrocyclic lactone that is avermectin B1a in which the double bond present in the spirocyclic ring system has been reduced to a single bond. It is the major component of ivermectin. | 22,23-dihydroavermectin B1a |
| beta-lipotropin, gln(9)- | A crown compound that is enterobactin in which the pro-R hydrogens at positions 2, 6 and 10 of the trilactone backbone are replaced by methyl groups, and in which a glycine spacer separates the trilactone backbone from each of the catecholamide arms. It is the endogenous siderophore of Bacillus subtilis, used for the acquisition of iron. | corynebactin |
| riddelliine n-oxide | A pyrrolizine alkaloid that is 13,19-didehydrosenecionane bearing two additional hydroxy substituents at positions 12 and 18, two additional oxo groups at positions 11 and 16 and an N-oxido substituent. | riddelliine N-oxide |
| sch 642305 | A macrocyclic lactone isolated from the fermentation broth of the fungal culture Penicillium verrucosum and has been shown to exhibit inhibitory activity against bacterial DNA primase enzyme. | sch 642305 |
| spiruchostatin b | A spiruchostatin with molecular formula C21H33N3O6S2 originally isolated from a Pseudomonas culture broth. | spiruchostatin B |
| surfactin A | A cyclodepsipeptide that is N-[(3R)-3-hydroxy-11-methyldodecanoyl]-L-alpha-glutamyl-L-leucyl-D-leucyl-L-valyl-L-alpha-aspartyl-D-leucyl-L-leucine in which the C-terminal carboxy group has been lactonised by condensation with the alcoholic hydroxy group. | surfactin A |
| surfactin c | A cyclodepsipeptide that is N-[(3R)-3-hydroxy-13-methyltetradecanoyl]-L-alpha-glutamyl-L-leucyl-D-leucyl-L-valyl-L-alpha-aspartyl-D-leucyl-L-leucine in which the C-terminal carboxy group has been lactonised by condensation with the alcoholic hydroxy group. | surfactin C |
| wilforgine | A dihydroagarofuran sesquiterpenoid and pyridine alkaloid with formula C41H47NO19 originally isolated from the roots of Tripterygium wilfordii. | wilforgine |