Abstract
An isomer of lycoplanine A with a 6/10/5/5 tetracyclic skeleton was synthesized using D–A reaction and cascasde reaction to respectively construct the [9.2.2] pentadecane skeleton and the challenging 1-oxa-6-azaspiro[4.4]nonane spirocenter. Morever, detailed DFT calculations were conducted to explain the selectivity in the D–A reaction. This study may provide sufficient experience for the total synthesis of lycoplanine A and other alkaloids with similar spiro-N,O-acetal cores.
Original language | English |
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Pages (from-to) | 1748-1751 |
Journal | Organic & Biomolecular Chemistry |
Volume | 19 |
Issue number | 8 |
DOIs | |
Publication status | Published - 28 Feb 2021 |