Stereoselective Construction of C2-Symmetric Adjacent Bis-α,α'-cis-Disubstituted THF Skeleton via Double Intramolecular Amide Enolate Alkylation: Total Syntheses of (+)-Membranacin and (+)-Squamocin-N.

Srinivas Batthula, Sudharshan Reddy Sanapalli, Mallesham Samala, Chandrashekhar Rapelli, Minjung Kwak, Nageswarao Yalavarthi, Seok Ho Kim, Deukjoon Kim, Jongkook Lee