Results 161 to 170 of about 1,494 (196)
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2006
Publisher Summary This chapter provides an overview on bisindole alkaloids. The indole–indole and tryptamine–tryptamine type, and related alkaloids are discussed. Tryptamine–tryptamine type with an additional monoterpene unit and related alkaloids are briefly discussed.
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Publisher Summary This chapter provides an overview on bisindole alkaloids. The indole–indole and tryptamine–tryptamine type, and related alkaloids are discussed. Tryptamine–tryptamine type with an additional monoterpene unit and related alkaloids are briefly discussed.
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The IBOGA alkaloids and their role as precursors of anti-neoplastic bisindole catharanthus alkaloids
ChemInform, 2002AbstractFor Abstract see ChemInform Abstract in Full Text.
Richard J, Sundberg, Stanton Q, Smith
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Melosuavine I, an apoptosis-inducing bisindole alkaloid from Melodinus suaveolens
Fitoterapia, 2019A new bisindole alkaloid, melosuavine I (1) possessing an aspidosperma-aspidosperma dimeric skeleton, was isolated from the leaves of Melodinus suaveolens. The structure with absolute configuration of 1 was elucidated by a combination of MS, NMR and computational methods.
Zhong-Ying Fang +6 more
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Ceridimine: a novel type of bisindole monoterpene alkaloid
Journal of the Chemical Society, Chemical Communications, 1986The structure determination and synthesis of ceridimine (1), a novel type of bisindole monoterpene alkaloid isolated from Pagiantha cerifera(Apocynaceae), are reported.
Genevi�ve Baudouin +3 more
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Aspidosperma–aspidosperma-type bisindole alkaloids from Voacanga africana
Tetrahedron, 2013Abstract Four new aspidosperma–aspidosperma-type bisindole alkaloids 1–4 were isolated from the seeds and root bark of Voacanga africana (Apocynaceae) and their structures were determined by spectroscopic analysis. Among them, voacandimine A (2) featured a linkage mode new to dimeric monoterpenoid indole alkaloids.
Mariko Kitajima +5 more
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Vincazalidine A, a unique bisindole alkaloid from Catharanthus roseus
Journal of Natural MedicinesA new dimeric indole alkaloid, vincazalidine A consisting of an aspidosperma type and a modified iboga type with 1-azatricyclo ring system consisting of one azepane and two piperidine rings coupled with an oxazolidine ring was isolated from Catharanthus roseus, and the structure including absolute stereochemistry was elucidated on the basis of ...
Yusuke, Hirasawa +7 more
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Obovatine, a New Bisindole Alkaloid from Stemmadenia obovata
Journal of Natural Products, 1995The stem bark of the Panamanian plant Stemmademia obovata has afforded a new ibogaine-type alkaloid, obovamine (1), whose structure was determined by a combination of spectral interpretation and ch...
E. Valencia +3 more
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Conodusarine, a New Biologically Active Bisindole Alkaloid from Tabernaemontana divaricata
HETEROCYCLES, 2004A new bisindole alkaloid of the vobasine-iboga type, conodusarine, was isolated from the stem-bark extract of Tabernaemontana divaricata and the structure established by spectroscopic analysis.
Toh‐Seok Kam, Huey‐Shen Pang
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Cathagines A–D, new bisindole alkaloids from Catharanthus roseus
Journal of Natural MedicinesFour new bisindole alkaloids, cathagines A (1)-D (4) consisting of an aspidosperma and the fused tetracyclic 3-spirooxindole derived from an iboga type skeleton were isolated from the whole plant of Catharanthus roseus. The structures including absolute stereochemistry were elucidated on the basis of 2D NMR data and CD spectra.
Yusuke, Hirasawa +8 more
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Insecticidal bisindole alkaloids from leaves of Tabernaemontana divaricata 'Dwaft'
PhytochemistrySix undescribed bisindole alkaloids, namely taberdisines A-F (1-6), were isolated from the leaves of Tabernaemontana divaricata 'Dwaft'. Among them, alkaloids 1 and 2 were the first examples of strychnos-iboga type alkaloid with both C-C linkage patterns. Alkaloid 3, a new type of aspidosperma-iboga with a furan-ring, as well as other three undescribed
Jing Chen +2 more
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