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akuammicine/strychnos
Povezava se shrani v odložišče
4 rezultatov
Biogenetically inspired approach to the Strychnos alkaloids. Concise syntheses of (+/-)-akuammicine and (+/-)-strychnine.
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Prijava / prijava
A linear synthesis of the indole alkaloid (+/-)-akuammicine (2) was completed by a novel sequence of reactions requiring only 10 steps from commercially available starting materials. The approach features a tandem vinylogous Mannich addition and an intramolecular hetero Diels-Alder reaction to
Total Synthesis of the Strychnos Alkaloids (+/-)-Akuammicine and (+/-)-Norfluorocurarine from 3a-(o-Nitrophenyl)hexahydroindol-4-ones by Nickel(0)-Promoted Double Cyclization.
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Prijava / prijava
Enantioselective Syntheses of Strychnos and Chelidonium Alkaloids via Regio- and Stereocontrolled Cooperative Catalysis
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Prijava / prijava
Herein we describe enantioselective syntheses of strychnos and chelidonium alkaloids. In the first case, indole acetic acid esters were established as excellent partner nucleophiles for enantioselective cooperative isothiourea/Pd catalyzed a -alkylation. This provides products containing
A three enzyme system to generate the Strychnos alkaloid scaffold from a central biosynthetic intermediate.
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Prijava / prijava
Monoterpene indole alkaloids comprise a diverse family of over 2000 plant-produced natural products. This pathway provides an outstanding example of how nature creates chemical diversity from a single precursor, in this case from the intermediate strictosidine. The enzymes that elicit these
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