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First asymmetric synthesis of the naturally occurring epoxy noneolide stagonolide-D has been reported in this article. Ring-closing metathesis (RCM) by Grubbs second generation catalyst, Sharpless asymmetric epoxidation (SAE), and cis-selective Horner–Wadsworth–Emmons (HWE) olefination by Ando method are the key reactions successfully employed to achieve the target molecule in a divergent approach. Structurally related small ring macrolide stagonolide-G has also been synthesized by employing RCM and a metal–enzyme combined dynamic kinetic resolution (DKR) strategy starting from (S)-ethyl lactate as a chiral pool.

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