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Dibenzopyrrocoline alkaloids

The benzyne route to dibenzopyrrocoline alkaloids with the 1-benzyltetrahy-droisoquinolines (40) listed in Table II was investigated by Kametani et al. (28), Kessar et al. (29), and Gibson and Ahmed (31). Secondary amines protected as 7-0-benzyl ethers, affording unstable tetrahydro intermediates with benzyl ether functions difficult to deprotect, were less favored than the corresponding N-methyl-substituted analogs, affording the desired quartemary alkaloids directly. [Pg.111]

Members of the tetracyclic dibenzopyrrocoline alkaloid family can be prepared by the intramolecular ring closure of l-(o-halobcnzyl)-tetrahydroisoquinoline derivatives. (3.38.)47 The analogous transformation of dihydroisoquinolines (3.39.) proceeds probably through the isomeric enamine form obtained by the tautomeric shift of the double bond 48 The palladium-carbene catalyst system applied in these reactions was also effective in the preparation of indoline, indolizidine and pyrrolizidine derivatives 49... [Pg.43]

CrustuNnol diester see fasciculic acid. Cryptaustolne see dibenzopyrrocoline alkaloids. Cryptolepine (5-methyl-5f/-quindoline). [Pg.158]

CryptowoKne see dibenzopyrrocoline alkaloids. Cryirtoxanlhln [j3-cryptoxanthin, (3/ )-/5,/3-caroten-3-ol]. [Pg.159]

Pharmacological Activity Other Biological Activity Protoberberidine Alkaloids Biosynthesis Biological Activity Protopine Alkaloids Benzophenanthridine Alkaloids Phthalideisoquinoline Alkaloids Rhoeadane Alkaloids Dibenzopyrrocoline Alkaloids Pavine and Isopavine (Argemone) Alkaloids Cularine Alkaloids Bisbenzylisoquinoline Alkaloids Biological Activity... [Pg.578]

Fig. 32.30. Biogenesis of dibenzopyrrocoline alkaloids (modified from Geissman and Crout, 1969). Fig. 32.30. Biogenesis of dibenzopyrrocoline alkaloids (modified from Geissman and Crout, 1969).
Desoxynupharidine, K24 Desthiobiotin, Y30 Desylamine, A23 Deuterated compounds, X3, Dl-2 Diaboline, K12 Diacetoxyscirpenol, T31 Diatoxanthin, T55 Dibenzopyrrocoline alkaloids, K5 Dictyopterene A, A44 Dictyopterene C, Y15 Digitoxigenin, T49 Diglycerides, A15 Dihydroanhydromonocrotalic acid, K23... [Pg.304]

Dibenzopyrrocoline alkaloids, K5 Dictyopterenes, A44, Y7 Digitoxigenin, T49 Diglycerides, A15 Dihydroactinidiolide, T18 Dihydroanhydromonocrotalic acid, K23... [Pg.160]

See other pages where Dibenzopyrrocoline alkaloids is mentioned: [Pg.242]    [Pg.413]    [Pg.101]    [Pg.103]    [Pg.105]    [Pg.111]    [Pg.113]    [Pg.115]    [Pg.115]    [Pg.419]    [Pg.312]    [Pg.291]    [Pg.355]    [Pg.326]    [Pg.262]    [Pg.428]    [Pg.380]    [Pg.130]    [Pg.322]    [Pg.133]    [Pg.316]    [Pg.392]    [Pg.343]    [Pg.314]    [Pg.341]    [Pg.605]    [Pg.614]    [Pg.414]    [Pg.247]    [Pg.262]    [Pg.502]    [Pg.382]    [Pg.265]   
See also in sourсe #XX -- [ Pg.31 , Pg.101 ]

See also in sourсe #XX -- [ Pg.31 , Pg.101 ]

See also in sourсe #XX -- [ Pg.6 , Pg.482 ]

See also in sourсe #XX -- [ Pg.6 , Pg.482 ]

See also in sourсe #XX -- [ Pg.605 ]

See also in sourсe #XX -- [ Pg.5 ]



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Dibenzopyrrocolines

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