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terpene
Definition :
A hydrocarbon of biological origin having carbon skeleton formally derived from isoprene [CH22C(CH3)CH2CH2].
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alicyclic compound
Definition :
An aliphatic compound having a carbocyclic ring structure which may be saturated or unsaturated, but may not be a benzenoid or other aromatic system.
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terpenoid
Definition :
Any isoprenoid that is a natural product or related compound formally derived from isoprene units. Terpenoids may contain oxygen in various functional groups. This class is subdivided according to the number of carbon atoms in the parent terpene. The skeleton of terpenoids may differ from strict additivity of isoprene units by the loss or shift of a fragment, generally a methyl group.
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polyketide
Definition :
Natural and synthetic compounds containing alternating carbonyl and methylene groups ('beta-polyketones'), biogenetically derived from repeated condensation of acetyl coenzyme A (via malonyl coenzyme A), and usually the compounds derived from them by further condensations, etc. Considered by many to be synonymous with the less frequently used terms acetogenins and ketides.
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is a
has part
is conjugate base of
is conjugate acid of
is tautomer of
is enantiomer of
has functional parent
has parent hydride
is substituent group from
has role
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