Results 111 to 120 of about 755 (153)

The bisindole alkaloid catharine

Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry, 1976
A Ducruix, C Pascard, Pascard C
exaly   +2 more sources

Bisindole alkaloids from Tabernaemontana corymbosa

Phytochemistry, 2018
Continued study in bioactive monoterpenoid alkaloids led to the isolation of nine undescribed alkaloids, taberyunines A-I, together with 32 known ones from the aerial parts of Tabernaemontana corymbosa Roxb. ex Wall (Apocynaceae). Among the undescribed alkaloids, taberyunines A-G and H-I were assigned to Aspidosperma-Aspidosperma and Vobasinyl-Ibogan ...
Bing-Jie, Zhang, Jing-Song, Lu, Mei-Fen, Bao, Xiu-Hong, Zhong, Ling, Ni, Jing, Wu, Xiang-Hai, Cai   +6 more
openaire   +2 more sources

Monoterpenoid Bisindole Alkaloids

2016
This chapter covers the literature on bisindole alkaloids consisting of monoterpenoid indoles, published up to June 2015. Bisindole alkaloids isolated from plants belonging to the families Apocynaceae and Loganiaceae, including Iboga-vobasine type, Aspidosperma-Aspidosperma type, eburnan-Aspidosperma type, Strychnos-Strychnos type, macroline-macroline ...
Mariko, Kitajima, Hiromitsu, Takayama
openaire   +2 more sources

ChemInform Abstract: Bisindole Alkaloids

ChemInform, 2009
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Toh‐Seok Kam, Yeun‐Mun Choo
openaire   +1 more source

Anticancer activity of bisindole alkaloids derived from natural sources and synthetic bisindole hybrids

Archiv der Pharmazie, 2020
AbstractThe bisindole moiety, as a versatile pharmacophore, is one of the widespread heterocycles in naturally occurring and synthetic bioactive compounds. The bisindole alkaloids derived from natural sources possess structural and mechanistic diversity, and they were found to be generally more active than monoindole alkaloids against various cancer ...
Yue Zhang, Chunhong Hu
openaire   +2 more sources

The IBOGA alkaloids and their role as precursors of anti-neoplastic bisindole catharanthus alkaloids

ChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
Richard J, Sundberg, Stanton Q, Smith
openaire   +2 more sources

Synthesis of Marine Sponge Bisindole Alkaloids Dihydrohamacanthins

Organic Letters, 2002
[structure: see text] A convergent synthesis of the marine sponge bisindole alkaloids dihydrohamacanthins is described. The synthesis centers on the construction of 3,5- and 3,6-linked pyrazinones and their reduction to the requisite piperazinones with sodium cyanoborohydride.
Fumiko Y, Miyake, Kenichi, Yakushijin, David A, Horne   +2 more
openaire   +2 more sources

Synthesis of a novel series of cytotoxic bisindole alkaloids

Bioorganic & Medicinal Chemistry Letters, 2001
Original cytotoxic bisindole alkaloids with a 1,2,3,4-tetrahydroquinoline bridge were synthesized by reductive amination with various anilines. The most cytotoxic compounds display a high and dose-dependent cell cycle effect with accumulation in the G1 phase.
M, Raoul, C, Schaeffer, S, Léonce, A, Pierré, G, Atassi, R, Hocquemiller, G, Lewin   +6 more
openaire   +2 more sources

Alternative partial synthesis of bisindole alkaloids

Tetrahedron Letters, 1990
Abstract Indoline derivatives of the pericyclivine series are oxidized at position 6 with DDQ; the corresponding alcohols are coupled with nucleophilic indolines under acid conditions to yield dimers similar to undulatine.
G. Massiot, J.M. Nuzillard, B. Richard, L. Le Men-Olivier   +3 more
openaire   +1 more source

Leucophyllinines A and B, bisindole alkaloids from Leuconotis eugeniifolia

Journal of Natural Medicines, 2019
Two new bisindole alkaloids, leucophyllinines A (1) and B (2) consisting of eburnane and quebrachamine-type skeletons were isolated from the bark of Leuconotis eugeniifolia, and their structures were elucidated on the basis of spectroscopic data. Leucophyllinines A and B showed antiplasmodial activities against Plasmodium falciparum 3D7.
Tang, Yiming, Nugroho, Alfarius Eko, Hirasawa, Yusuke, Tougan, Takahiro, Horii, Toshihiro, A. Hadi, A. Hamid, Morita, Hiroshi   +6 more
openaire   +3 more sources