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Terpenoid

Guella, P. Amade and F. Pietra, Helv. Chim. Acta, 69 (3), 726 (1986). [Pg.23]


D-Mevalonic acid is the fundamental intermediate in the biosynthesis of the terpenoids and steroids, together classed as poly-isoprenoids. The biogenetic isoprene unit is isopentenyl pyrophosphate which arises by enzymic decarboxylation-dehydration of mevalonic acid pyrophosphate. D-Mevalonic acid is almost quantitatively incorporated into cholesterol synthesized by rat liver homogenates. [Pg.262]

Open-chain 1,5-polyenes (e.g. squalene) and some oxygenated derivatives are the biochemical precursors of cyclic terpenoids (e.g. steroids, carotenoids). The enzymic cyclization of squalene 2,3-oxide, which has one chiral carbon atom, to produce lanosterol introduces seven chiral centres in one totally stereoselective reaction. As a result, organic chemists have tried to ascertain, whether squalene or related olefinic systems could be induced to undergo similar stereoselective cyclizations in the absence of enzymes (W.S. Johnson, 1968, 1976). [Pg.90]

Similarly to alkenes. alkynes also insert. In the reaction of 775 carried out under a CO atmosphere in AcOH, sequential insertions of alkyne, CO. alkene. and CO take place in this order, yielding the keto ester 776[483]. However, the same reaction carried out in THF in the presence of LiCl affords the ketone 777, but not the keto ester[484]. The tricyclic terpenoid hirsutene (779) has been synthesized via the Pd-catalyzed metallo-ene carbonylation reaction of 778 with 85% diastereoselectivity as the key reaction[485], Kainic acid and allo-kainic acid (783) have been synthesized by the intramolecular insertion ol an alkene in 780, followed by carbonylation to give 781 and 782[486],... [Pg.397]

A more highly substituted analogue was successfully used in the preparation of the penitrem class of terpenoid indoles[3]. [Pg.50]

In a more elaborate and specific synthesis, the terpenoid indole skeleton found in haplaindole G, which is isolated from a blue-green alga, was constructed by addition of a nucleophilic formyl equivalent to enone 6.5A. Cyelization and aromatization to the indole 6.6B followed Hg -catalysed unmasking of the aldehyde group[6]. [Pg.50]


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1-Deoxyxylulose 5-phosphate pathway, terpenoid

Acyclic Terpenoids

Alcohol terpenoid

Alkaloids indole, terpenoid

Alkaloids of Terpenoid Origin

Alkaloids terpenoid

Alkaloids terpenoid tetrahydroisoquinoline

Allelochemicals, terpenoids

Analysis, structure, and reactivity labile terpenoid aroma precursors

Animals terpenoid pathway

Antiviral compounds terpenoids

Artemisia annua terpenoids from

Bicyclic terpenoid sulfides

Biochemistry of terpenoids monoterpenes, sesquiterpenes and diterpenes

Bioreactors terpenoids

Biosynthetic enzymes terpenoids

Biosynthetic terpenoid indole alkaloid

Brominated terpenoids

Brominative cyclization in brominated terpenoids

Carboxy terpenoid indole alkaloids

Catharanthus roseus, terpenoid indole

Catharanthus roseus, terpenoid indole alkaloids

Catharanthus roseus, terpenoid indole biosynthesis

Classification of terpenoids

Cotton terpenoid aldehydes

Cyathin terpenoids

Cyclic terpenoid sulfides

Cyclic terpenoids

Di terpenoid

Di terpenoids

Examples NMR Spectroscopy of Oligosaccharides and Terpenoids

Extraction and Use of Terpenoids

Five Key Terpenoids

Flavonoids, xanthines and terpenoids

Flavouring terpenoid

Fragrance Ingredients Derived from Terpenoids

Fungi terpenoid pathway

Genes Encoding Enzymes Involved in Terpenoid Indole Alkaloid Biosynthesis

Gossypium terpenoid aldehydes

Halides, terpenoid

Halogenated terpenoid and polyketide

Halogenated terpenoid and polyketide metabolites

Higher Plant Terpenoids

Homologation terpenoids

Hormones, terpenoids

Hydroquinone terpenoids

Hypericum annulatum terpenoid moieties from

Insecticidal terpenoids

Irritant terpenoids

Isopentenyl diphosphate terpenoids from

Isopentenyl diphosphate, biosynthesis terpenoids from

Julia s terpenoid synthesis

Labile terpenoid aroma precursors

Lactones, terpenoid

Linear terpenoids

Lipid-soluble terpenoids

Lipids terpenoids

Localization terpenoid pathways

Mass spectrometry of terpenes, terpenoids and carotenoid

Mevalonate pathway, terpenoid

Miscellaneous Terpenoids of Clinical Interest

Mixed terpenoids

Mono- and Sesqui-terpenoid Alkaloids

Non-terpenoid Alkaloids

Non-terpenoid Hydrocarbons

Non-terpenoid Quinolines

Of terpenoid alkaloids

Oidiodendrum griseum terpenoid dilactones from

Oleoresin terpenoids

Other Applications of Biologically Active Terpenoids

Other terpenoid pigments

Oximes of Terpenoid Ketones and Their Analogs

Oxygenated terpenoids

Parti Terpenoids onoterpenoids

Pathway Leading to Terpenoid Indole Alkaloids Intermediates and Enzymes

Pathways terpenoid biosynthetic

Perfume Ingredients Derived from Terpenoids

Peroxides terpenoid

Pheromones, terpenoids

Phytochemicals terpenoids

Pigment glands terpenoid aldehydes

Pigments terpenoid

Plant extracts terpenoids

Plant glycosylated terpenoids

Plant-derived terpenoids

Plants terpenoid pathways

Plants terpenoids

Poly terpenoids

Polycyclic terpenoids

Polyketide-terpenoid

Polyketide-terpenoid metabolite

Polyketides terpenoid

Production of Terpenoids

Quinones, terpenoid

Rearrangement terpenoids

Resins terpenoid varnishes

Saturated terpenoid alcohols

Secondary metabolites, terpenoids

Semiochemicals, terpenoids

Sponge terpenoids

Steroidal and Terpenoid Alkaloids

Subject terpenoids

Syntheses of terpenoids

Synthesis of Steroids and Terpenoids

Terpene, terpenoid

Terpenes Terpenoids

Terpenes and Terpenoids

Terpenes/terpenoids cytochrome

Terpenes/terpenoids epoxidation

Terpenes/terpenoids, flavors

Terpenoid Anti-Cancer Agents

Terpenoid Antibiotics

Terpenoid Antibiotics in Clinical Practice

Terpenoid Biochemistry and Molecular Genetics in Conifers

Terpenoid Constituents from Porifera

Terpenoid Derivatives and the Supporting Moiety Theory

Terpenoid Derivatives as Anti-Ulceric Compounds

Terpenoid Synthesis from Isoprene

Terpenoid Testosterone

Terpenoid aldehydes

Terpenoid aroma precursors, analysis

Terpenoid biosynthesis

Terpenoid butenolides

Terpenoid chemistry

Terpenoid classification

Terpenoid definition

Terpenoid derivatives

Terpenoid dicarboxylic acids

Terpenoid diketone

Terpenoid double bonds, formation

Terpenoid esters

Terpenoid indole alkaloids (TIAs

Terpenoid indole alkaloids biosynthesis

Terpenoid indole alkaloids catharanthine

Terpenoid indole alkaloids geraniol, pathway

Terpenoid indole alkaloids peroxidases

Terpenoid indole alkaloids regulation

Terpenoid indole alkaloids secologanin, pathway

Terpenoid indole alkaloids strictosidine glucosidase

Terpenoid indole alkaloids tryptamine, pathway

Terpenoid indole alkaloids tryptophan decarboxylase gene

Terpenoid indole alkaloids tryptophan, pathway

Terpenoid indole alkaloids vinblastine

Terpenoid indole alkaloids vincristine

Terpenoid indole alkaloids vindoline pathway

Terpenoid indole and related alkaloids

Terpenoid intermediates

Terpenoid intermediates alkylation

Terpenoid intermediates preparation

Terpenoid intermediates synthesis

Terpenoid isoprene rule and

Terpenoid metabolism

Terpenoid mevalonate biosynthetic pathway

Terpenoid nomenclature

Terpenoid number

Terpenoid occurrence

Terpenoid pathways

Terpenoid pathways carotenoid synthesis

Terpenoid polymerization

Terpenoid products, world production

Terpenoid resins

Terpenoid resins ageing

Terpenoid resins diterpenoid

Terpenoid resins spectrometry

Terpenoid sapogenins

Terpenoid synthases

Terpenoid synthesis

Terpenoid, marine natural product

Terpenoidal Phenazines

Terpenoidal alkaloid

Terpenoides

Terpenoides

Terpenoids

Terpenoids

Terpenoids (Isoprenoids)

Terpenoids DMAPP

Terpenoids INDEX

Terpenoids Monoterpenes, Sesquiterpenes

Terpenoids Terpenoid stress compound

Terpenoids Terpinen

Terpenoids a-Terpinol

Terpenoids accumulation

Terpenoids acrylic

Terpenoids and Steroids

Terpenoids and Terpenoid Derivatives as Structurally Specific Agents

Terpenoids antimicrobial activity

Terpenoids antioxidative activity

Terpenoids aroma compounds

Terpenoids as Insect Attractants

Terpenoids as Insect Repellents

Terpenoids biomarkers

Terpenoids biosynthetic pathway

Terpenoids biotransformation studies

Terpenoids carbocycle

Terpenoids carotenoids

Terpenoids chemical changes

Terpenoids chemical constitution

Terpenoids chemically formed from

Terpenoids classification

Terpenoids cyclizations

Terpenoids description

Terpenoids diagenesis

Terpenoids diterpenes

Terpenoids diterpenoid resins

Terpenoids diterpenoids

Terpenoids double bond activation

Terpenoids ginkgo

Terpenoids glycoside

Terpenoids hemiterpenes

Terpenoids hemiterpenoids

Terpenoids hydroxylation

Terpenoids in Relation to the Concept of Bioisosterism

Terpenoids iridoids

Terpenoids isopentenyl diphosphate

Terpenoids isoprene units

Terpenoids jasmonate signalling

Terpenoids lanosterol

Terpenoids limonoids

Terpenoids linalool

Terpenoids lupeol

Terpenoids meroterpenoids

Terpenoids metabolism

Terpenoids metabolism linalool

Terpenoids metabolism myrcene

Terpenoids metabolites

Terpenoids microbial hydroxylation

Terpenoids molecular targets

Terpenoids monoterpene

Terpenoids monoterpene derivatives

Terpenoids monoterpenes

Terpenoids monoterpenoids

Terpenoids oxidation

Terpenoids pathway

Terpenoids phytosterols

Terpenoids pigments

Terpenoids polycyclic natural compounds

Terpenoids polyene cyclizations

Terpenoids regulation

Terpenoids saponins

Terpenoids science

Terpenoids sesquiterpene

Terpenoids sesquiterpene alkaloids

Terpenoids sesquiterpenes

Terpenoids sesquiterpenoid resins

Terpenoids sesquiterpenoids

Terpenoids sesterterpenoids

Terpenoids source indicators

Terpenoids special

Terpenoids stereochemistry

Terpenoids structure

Terpenoids synthesis

Terpenoids terpene synthases

Terpenoids terpenoid indole alkaloids

Terpenoids tetraterpenes

Terpenoids triterpene

Terpenoids triterpenoid resins

Terpenoids triterpenoids

Terpenoids tyrosine

Terpenoids via 1,3-dipolar cycloadditions

Terpenoids with Insect Juvenile Hormone Activity

Terpenoids, bioactive

Terpenoids, biosynthesis

Terpenoids, biosynthesis molecules

Terpenoids, chemical nature

Terpenoids, mass spectra

Terpenoids, symmetrical

Terpenoids, toxic

Tetracyclic terpenoid sulfides

The Role of Terpenoids in Nature

Tri terpenoids

Types of Terpenoids

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