Results 91 to 100 of about 954 (177)
The Raputindoles: Novel Cyclopentyl Bisindole Alkaloids from Raputia simulans
A novel class of bisindole alkaloids is established by the isolation and structural determination of raputindoles A−D (1−4) from the Amazonian plant Raputia simulans Kallunki (Rutaceae).
Alexios-Leandros Skaltsounis (127086) +4 more
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Bisindole Alkaloids with Neural Anti-inflammatory Activity from Gelsemium elegans
Three new trace bisindole alkaloids geleganimines A and B (1, 2) and geleganamide (3) were isolated from the aerial parts of Gelsemium elegans. Their structures were elucidated by spectroscopy, particularly from their carbon–proton coupling constants ...
Shi-Shan Yu (737551) +9 more
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Three New Cytotoxic Monoterpenoid Bisindole Alkaloids from Tabernaemontana bufalina
Three new bisindole alkaloids, 3′-(2-oxopropyl)-19,20-dihydrotabernamine (1), 3′-(2-oxopropyl)-ervahanine B (2), 19,20-dihydrovobparicine (3), and 20 known compounds were isolated from the aerial parts of Tabernaemontana bufalina. The structures of these
You-Sheng Cai +8 more
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peer reviewedA high performance liquid chromatographic method for the simultaneous determination of bisindole usambarane alkaloids from the roots of Strychnos usambarensis using a diode-array detector is proposed, The system, consisting of a RP-8 Select ...
Angenot, Luc +8 more
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Studies on the synthesis of bisindole Aspidosperma alkaloids
I. Introduction and Background on Aspidosperma Alkaloids A brief overview of monoterpene indole Aspidosperma alkaloids is discussed. The biosynthesis of the characteristic pentacyclic core from tryptamine and secologanin is summarized.
Pinto, Taylor
core
Biologically active alkaloids from Alstonia angustiloba / Ku Wai Foong [PDF]
The alkaloidal content of Malaysian plant, Alstonia angustiloba Miq., was investigated and the results are summarized as below (Table). A total of 20 alkaloids were isolated and characterized, of which, three were new alkaloids, viz., angustilobine C (1),
Ku, Wai Foong
core
Antiviral glycosidic bisindole alkaloids from the roots of Isatis indigotica
Seven new glycosidic bisindole alkaloids, isatindigobisindolosides A–G (1–7), were isolated from an aqueous extract of the Isatis indigotica roots. Their structures including absolute configurations were determined by spectroscopic and chemical methods ...
Cheng-Bo Xu (744325) +8 more
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Spiroindimicins A–D: New Bisindole Alkaloids from a Deep-Sea-Derived Actinomycete
A PCR-based screening approach led to the identification of a deep-sea-derived Streptomyces sp. SCSIO 03032 capable of producing new bisindole alkaloids spiroindimicins A–D (1–4). Structural elucidation of these compounds revealed the presence of unusual
Tingting Yang (166111) +12 more
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Bisindole Alkaloids from a New Zealand Deep-Sea Marine Sponge Lamellomorpha strongylata. [PDF]
Ragini K, Piggott AM, Karuso P.
europepmc +1 more source
Biologically active indole and bisindole alkaloids from Leuconotis and Kopsia / Gan Chew Yan [PDF]
Two Malaysian plants viz., Leuconotis griffithii and Kopsia pauciflora, and one fungi strain (Penicillium sp. (CDA p48.3)) were investigated for their alkaloidal content and the results are summarized below (Table). A total of 107 alkaloids were isolated
Gan, Chew Yan
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