Journal
ORGANIC LETTERS
Volume 24, Issue 37, Pages 6880-6883Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.2c02927
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Funding
- National Science Foundation of China [21732001, 21871118, 22071090]
- PCSIRT [IRT_15R28]
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The total synthesis of the indole alkaloid (-)-an-dranginine has been achieved in 10 steps, involving key reactions including nucleophilic addition of acetylenyl anion, intramolecular N-alkylation reaction, and dienyne metathesis cascade reaction.
The total synthesis of the indole alkaloid (-)-an-dranginine has been achieved in 10 steps. Key reactions of the synthesis include a nucleophilic addition of acetylenyl anion to chiral N-sulfinyl imine, an intramolecular N-alkylation reaction to close the C ring, and a dienyne metathesis cascade reaction to construct the DE rings. Meanwhile, 16-epi-(-)-andranginine was also obtained with the developed strategy.
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