| Member | Definition | Role |
|---|
| 7-deoxyloganic acid | A cyclopentapyran that is 1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran-4-carboxylic acid substituted at positions 1 and 7 by beta-D-glucosyloxy and methyl groups respectively (the 1S,4aS,7S,7aR-diatereomer). | 7-deoxyloganic acid |
| agnuside | A benzoate ester resulting from the formal condensation of the carboxy group of 4-hydroxybenzoic acid with the primary hydroxy group of aucubin. It is an iridoid glycoside found in several Vitex plants including Vitex agnus-castus. | agnuside |
| gardenoside | A cyclopentapyran that is 7-deoxyloganin with a methyl and hydrogen replaced by hydroxy and hydroxymethyl groups at position 7. | gardenoside |
| loganic acid | A cyclopentapyran that is 1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran-4-carboxylic acid substituted at positions 1, 6 and 7 by beta-D-glucosyloxy, hydroxy and methyl groups respectively | loganic acid |
| loganin | An iridoid monoterpenoid with formula C17H26O10 that is isolated from several plant species and exhibits neuroprotective and anti-inflammatory properties. | loganin |
| monotropein | An iridoid monoterpenoid that is 1,4a,7,7a-tetrahydrocyclopenta[c]pyran substituted by a beta-D-glucopyranosyloxy group at position 1, a carboxylic acid group at position 4, and at position 7 by a hydroxy and hydroxymethyl groups respectively (the 1S,4aS,7R,7aS diastereomer). | monotropein |
| nepetalactol | A cyclopentapyran that is 1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran substituted at position 1 by a hydroxy group and at positions 4 and 7 by methyl groups (the 4aS,7S,7aR-diastereomer) | cis-trans-nepetalactol |