Alkaloid indole

L-tryptophan Indole alkaloids Indole Simple indole Arundacine... 

L-tyrosine Tyrosine-derived alkaloids Indole alkaloids Quinoline alkaloids /3-carboline alkaloids Pyrroloindole alkaloids Ergot alkaloids Iboga alkaloids Corynanthe alkaloids Aspidosperma alkaloids Protoalkaloids Terpenoid indole alkaloids True alkaloids... 

Tropane alkaloids, isoquinoline alkaloids, indole alkaloids... 

Enzymatic and Chemo-Enzymatic Approaches Towards Natural and Non-Natural Alkaloids Indoles, Isoquinolines, and Others... 

Brown AJ, Lenehan CE, Francis PS, Dunstan DE, Barnett NW. Soluble manganese(IV) as a chemiluminescence reagent for the determination of opiate alkaloids, indoles and analytes of forensic interest. Talanta 2007 71 1951-7. 

When plants undergo various stresses, certain secondary metabolites, including defense compounds, accumulate. Several secondary metabolites such as terpenoid indole alkaloids, indole glucosinolate, nicotine alkaloids, and polyamines are known to accumulate through the induction of biosynthetic genes by jasmonates.898-900 MeJA also induces genes involved in the formation of tryptophan derivatives, terpenoid indole alkaloids.901 These compounds are known to be involved in defense response to pathogen attack as phytoalexins. 

Although the natural occurrence of indole and the biosynthesis of the indole ring system are of importance and relevance to the wider question of the biosynthesis of the complex indole alkaloids, indole will not be discussed in detail here, as it is not an alkaloid. For a comprehensive and critical account of the occurrence of indole and its simple derivatives in plants, the reader is referred to the article by Stowe (8). 

Chlorination of indole alkaloids. Indole alkaloids of the type (1) on reaction with a 5-10% molar excess of 1-chlorobenzotriazole in dry methylene chloride or benzene are converted in high yield into chloroindoicnincs (2). r-Butyl hypochlorite has been u.scd previously for such conversions. Reported yields arc not so high as those obtained... 

Several reviews have appeared, on such topics as steroid and terpenoid biogenesis, hemiterpenoid alkaloids,indole alkaloids (monoterpenoids), ophiobolins (sesterterpenoids), sterols in Digitalis, oestrogens, plant tri-terpenoids, and carotenoids. ... 

In the case of iridoids, they are ring opened to secoiridoids and are incorporated as monoterpenoid part of important groups of alkaloids indole, ipecacuanha, cinchona, pyrroloquinoline alkaloids and related compounds (ref 8 ). 

Fish, M.S. etal. 1955. Piptadenia alkaloids. Indole bases of P. peregrisia (L.) Benth. and related species Journal oftheAmeri-erican Chemical Society yj 5892—5895. 

Fish, M.S. Johnson, N.M. Horning, E.C. Piptadenia Alkaloids. Indole Bases of P. peregrina (L.) Benth. and Related Species ... 

Secologanin 17 is a key precursor in alkaloidal biogenesis from which over 1000 alkaloids (indol-, cinchona-, ipecacuanha-, pyrroloquinone-alkaloids) are derived. A stereoselective total synthesis of secologanin has been achieved (Tietze 1983) [20]. 

Terpenoid Indole Alkaloids.—Monoterpenes have been the subject of a comprehensive review which includes these alkaloids. Indole alkaloids have been classified according to their biogenesis and another review discusses the application of tritium labelling in biosynthetic studies on these alkaloids as well as several others. 

Keywords Alkaloids Indole Prenylation Regioselectivity Total synthesis Contents... 

Cmchona alkaloids. Indole alkaloids (cinchonamine group) and quinoline alkaloids (cinchonine group), only the latter group is of therapeutic significance. C. a. are isolated from Cinchona bark (Jesuit s bark Cin-chonae cortex). The name is derived from the Indian word quina (bark). The drug consists of the dried tube... 

International free name for methyl 18-0-(3,4,5-tri-methoxybenzoyO-reserpate, Cj3H4 209> Mr 608.69 prismatic, cryst., decomp, at 265 C, soluble in chloroform, poorly soluble in water, LD50 (mouse i.v.) 20 mg/kg (dog i. v.) 0.5 mg/kg (rat p.o.) 420 mg/kg. R. is a Rauvolfia alkaloid ( indole alkaloids, mono-terpenoid indole alkaloids) from the roots of the Indian Rauvolfia serpentina, the Mexican R. heterophylla, and the Australian Alstonia constricta. 

A/ illNoronono alkaloids Benzylisoquinoline alkaloids p-carbollno alkaloids Cyclopeptide alkaloids Dilerpene alkaloids DIscorhabdin alkaloids Ergot alkaloids Hasiibanano-lype alkaloids Imidazole alkaloids Indole alkaloids Indolo-diterpene alkaloids Indolocarbazole alkaloids Isoqninoline alkaloids Loline alkaloids... 

In addition to the quinoline alkaloids indole alkaloids occur which, like cinchon-amine (Fig. 263), carry the quinuclidine ring system in position 2. 

A-nor-sterols nitrogen-containing diterpenes (-NC, -NHCHO) pyrrole-imidazole alkaloids Indolic derivatives indole-imidazole alkaloids... 

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