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Abuta

Abuta imene (Mart) Eiehl. A. rufescens Aubl. [Pg.371]

Abrine, 484 Abrotine, 772 Abrtis precatorius, 484 Abuta spp., 371 Acacia spp., 771 Acetylcholine, 262, 518 Acetylomithine, 170, 171, 172 Achillea spp., 779 Achilleine achilletine, 779 Acolyctine, 686 Aconine, 673, 675, 679, 685 Aconines, nuclear structure, 693 Aconite alkaloids, 673 Aconitine, 673, 674, 775 oxidation products, 676 Aconitines, pharmacological action, 690 Aconitinone, 676 Aconitoline, 675... [Pg.784]

Chloroform adducts 190a and 190b of berberine (15) and palmatine (64) are well known. Column chromatography of palmatine-chloroform 190b on silica gel with chloroform-methanol gave saulatine (192) (Scheme 34). This alkaloid and its analog puntarenine (191) had been isolated from Abuta bullata (108) and B. actinacantha (109), respectively, but have now been shown to be artifacts (107). [Pg.170]

Abuta grisebachii Triana and Planchon (Prance) is the sole ingredient of a curare used by the Sanama Indians of the Venezuela-Brazil border region. An extract of the stem wood afforded macolidine (193), along with the other newly reported alkaloids, macoline (Section II,C,58), 7-C>-demethylpeinamine (Section II,C,24), A-methyl-7-O-demethylpeinamine (Section II,C,65), and peinamine (Section II,C,92). [Pg.50]

Norpanurensine (237), C36H38N206, from Abuta panurensis Eichler (Menispermaceae), crystallized as needles (MeOH), mp 175°C, [a]D —250° (c 0.1, CHC13), IR 3400 cm 1 (OH), 3200 (NH), HRMS mle 594.2712 N-Methylation with CH20/NaBH4 in CHCl3-MeOH gave material identical to panurensine... [Pg.62]

The new reddish-brown alkaloid grandirubrine (75), as well as the known imerubrine (76), are present in Abuta grandifolia (Menispermaceae).54... [Pg.130]

Abuta imene Eichl, and A. rufescens Griseb. (Menispermaceae) (XIII, 397) ... [Pg.263]

Two related alkaloids, grisabine (53 R = Me) and grisabutine (53 R = H), have been isolated from Abuta grisebachii Triana et Planchon. Their structures were determined by splitting the diphenyl ether linkage with sodium-liquid ammonia ... [Pg.97]

A new oxoaporphine alkaloid is oxostephanine (38) from Stephania japonica. Imerubrine, found together with a variety of oxoaporphines and azafiuoranthenes in the South American vines Abuta imene and A. rufescens has been tentatively... [Pg.162]

A new azahuoranthene alkaloid, produced by Abuta imene and A. rufescens, is the phenolic norrufescine (47). ... [Pg.166]

Abuta (27) [1] is the genus with the most rapidly increasing number of species. [Pg.271]

No native species of Cocculus have been found in South America, but C laurifolius DC was formerly cultivated at Lima, Peru, and mistakenly identified as an Abuta. [Pg.272]

Abuta concolor (Poepp Endl.) = Abuta concolor (Benth) = Abuta grandifblia (Mart.) [3]. [Pg.279]

Simple isoquinolines are not found in the Menispermaceae of South America. The isoquinolone thalifoline (1) was identified from Abuta pahni [32], Benzyltetrahydroisoquinolines are the biogenetic precursors for aporphines, proaporphines, and oxoaporphines. Yet the only such compound isolated from South American Menispermaceae is (+) coclaurine (2) obtained from Sciadotema eichleriam [52] and Caryomene olivascens [37-38]. The chemistry of simple isoquinolines [65], isoquinolones [66], and benzyltetrahydroisoquinolines [67] have been reviewed. [Pg.280]

The Tetitoxicum genus is closely related to some Abuta species such as A. imene and A. rufescens based on the constituents present which are mainly oxoaporphines and azafluoranthenes. It is possible dial 4,5-dioxoaporphines may also be present in some of these Abuta species. [Pg.283]

Saulatine (35) is the only alkaloid of the isohomoprotoberberine type found in one South American Menispermaceae, Abuta bullata, collected from Guyana [23]. Homologation of protoberberine is thought to be the biogenetic pathway for the formation of this compound. [Pg.285]

Abuta pahni (Martius) Krukoff and Bameby (Menispennaceae)[23O] Menispermum dauricum DC.. (Menisperniaceae)[223,225.227]... [Pg.16]

See other pages where Abuta is mentioned: [Pg.272]    [Pg.65]    [Pg.142]    [Pg.142]    [Pg.142]    [Pg.130]    [Pg.31]    [Pg.40]    [Pg.49]    [Pg.51]    [Pg.56]    [Pg.69]    [Pg.101]    [Pg.148]    [Pg.150]    [Pg.270]    [Pg.270]    [Pg.270]    [Pg.274]    [Pg.279]    [Pg.282]    [Pg.284]    [Pg.285]    [Pg.286]    [Pg.288]    [Pg.290]    [Pg.295]    [Pg.296]    [Pg.296]    [Pg.297]    [Pg.297]    [Pg.17]   
See also in sourсe #XX -- [ Pg.271 ]

See also in sourсe #XX -- [ Pg.118 , Pg.169 , Pg.197 , Pg.208 ]

See also in sourсe #XX -- [ Pg.442 , Pg.588 ]

See also in sourсe #XX -- [ Pg.10 , Pg.13 , Pg.14 ]

See also in sourсe #XX -- [ Pg.18 , Pg.51 ]



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Abuta alkaloids from

Abuta bullata

Abuta grandifolia

Abuta grisebachii

Abuta imene

Abuta pahni

Abuta panurensis

Abuta rufescens

Abuta rufescens , alkaloids from

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