Journal ArticleDOI
Horsfiline, an oxindole alkaloid from Horsfieldia superba
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This article is published in Journal of Organic Chemistry.The article was published on 1991-11-01. It has received 351 citations till now. The article focuses on the topics: Horsfiline & Horsfieldia superba.read more
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Simple indole alkaloids and those with a nonrearranged monoterpenoid unit.
Masanori Somei,Fumio Yamada +1 more
TL;DR: A review of simple indole alkaloids and those with a non-rearranged monoterpenoid unit is given in this paper, where newly isolated alkaloid, structure determinations, total syntheses and biological activities are included.
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Diastereo- and Enantioselective Construction of a Bispirooxindole Scaffold Containing a Tetrahydro-β-carboline Moiety through an Organocatalytic Asymmetric Cascade Reaction
TL;DR: The first catalytic asymmetric construction of a new class of bispirooxindole scaffold-containing tetrahydro-β-carboline moiety has been established through chiral phosphoric acid-catalyzed three-component cascade Michael/Pictet-Spengler reactions of isatin-derived 3-indolylmethanols, isatins, and amino-ester.
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Azomethine ylide cycloaddition/reductive heterocyclization approach to oxindole alkaloids: asymmetric synthesis of (-)-horsfiline.
TL;DR: The intermolecular [3 + 2] annulation of azomethine ylides with 2(2-nitrophenyl)acrylate dienophiles followed by reductive heterocyclization affords the spiro(indole-pyrrolidine) ring system to accomplish a concise and highly enantioselective synthesis of (-)-horsfiline 1.
Journal ArticleDOI
Glycosamino Acids: New Building Blocks for Combinatorial Synthesis
TL;DR: Amine and carboxylic acid functional groups were incorporated into several monosaccharides in order to produce inexpensive, chemically diverse carbohydrate building blocks more amenable for use in combinatorial organic synthesis.
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Highly diastereo- and enantioselective construction of a spiro[cyclopenta[b]indole-1,3′-oxindole] scaffold via catalytic asymmetric formal [3+2] cycloadditions
TL;DR: An organocatalytic asymmetric formal [3+2] cycloaddition of isatin-derived 3-indolylmethanol with 3-methyl-2-vinylindole has been established, leading to highly stereoselective construction of a spiro[cyclopenta[b]indole-1,3'-oxindole] scaffold.