Securinega alkaloids, known for their unique structures and neuroplasticity-inducing potential, are promising candidates for treating neurodegenerative diseases such as depression and substance use disorders (SUD). Herein, we delineate the total synthesis of two dimeric Rauhut-Currier (RC) reaction-based securinega alkaloids, (-)-flueggenine A and (-)-15'--flueggenine D. The key step involved a novel reductive Heck dimerization strategy, utilizing a silyl-tethered enone coupling partner to ensure the desired reactivity and stereoselectivity. This dimerization method, combined with established chemistry explored en route to (-)-flueggenines C and D, offers a comprehensive synthetic approach for accessing all known RC-based oligomeric securinega alkaloids.
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| http://dx.doi.org/10.1039/d4sc07525k | DOI Listing |
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