Aubert-Nicol S, Lessard J, Spino C. A Photorearrangement To Construct the ABDE Tetracyclic Core of Palau'amine.
Org Lett 2018;
20:2615-2619. [PMID:
29667828 DOI:
10.1021/acs.orglett.8b00819]
[Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A synthesis of the ABDE tetracyclic carbon core of palau'amine was achieved in 9 steps from commercial materials. The core's most notable feature, a highly strained trans cyclopenta[ c]pyrrolidine, was obtained in high yield using a ring contraction strategy starting from a much less strained trans bicyclic lactam derivative that is accessible in only 7 steps.
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