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| Basic forms: |
- Acyclic (linear, cis and trans forms)
- Monocyclic (single ring)
- Bicyclic (2 rings)
- Iridoids (cyclopentane ring)
- Iridoid glycosides (iridoids bound to a sugar)
- Steroids (4 rings)
|
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| Hemiterpenoids (1) | |
|---|
Monoterpenes
(C10H16)(2) | | Acyclic | |
|---|
| Monocyclic | |
|---|
| Bicyclic | |
|---|
|
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Monoterpenoids
(2,modified) | | Acyclic | |
|---|
| Monocyclic | |
|---|
| Bicyclic | |
|---|
|
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| Sesquiterpenoids (3) | |
|---|
| Diterpenoids (4) | | Acyclic | |
|---|
| Monocyclic | |
|---|
| Bicyclic | |
|---|
| Tricyclic | |
|---|
| Tetracyclic | |
|---|
| Resin acids | |
|---|
|
|---|
| Sesterterpenoids (5) | |
|---|
| Triterpenoids (6) | |
|---|
| Sesquarterpenes/oids (7) |
- Ferrugicadiol
- Tetraprenylcurcumene
|
|---|
Tetraterpenoids
(Carotenoids) (8) | |
|---|
| Polyterpenoids (many) | |
|---|
| Norisoprenoids (modified) |
- 3-oxo-α-ionol
- 7,8-dihydroionone
|
|---|
| Synthesis | |
|---|
| Activated isoprene forms | |
|---|