Modular total syntheses of lamellarin G trimethyl ether and lamellarin S
Modular total syntheses of the title compounds 2 and 3 are reported. The key pyrrolic building block 8 was prepared from the readily accessible pyrrole 6 via a di-iodination/mono-deiodination sequence. Suzuki-Miyaura cross-coupling of compound 8 with boronate ester 9 afforded lactone 10. Bromination of compound 10 followed by N-alkylation under Mitsunobu conditions afforded the fully substituted pyrrole 13 that engaged in a second Suzuki-Miyaura cross-coupling reaction with boronic acid 14 to...[Show more]
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|Source:||European Journal of Organic Chemistry|
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