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Stereoselective total synthesis of atpenins a4 and b, harzianopyridone, and NBRI23477 B
Authors:Masaki Ohtawa  Kouhei Sugiyama  Tohru Hiura  Shujiro Izawa  Kazuro Shiomi  Satoshi Omura  Tohru Nagamitsu
Institution:Graduate School of Pharmaceutical Sciences, Kitasato University, 5–9–1 Shirokane, Minato-ku, Tokyo, Japan.
Abstract:The stereoselective total synthesis of atpenins A4 (2) and B (3), harzianopyridone (4), and NBRI23477 B (5) have been developed using a convergent approach involving the coupling reaction of a common iodopyridine with an aldehyde corresponding to the appropriate side chain of the desired compound. Furthermore, the absolute configurations of atpenin B (3), harzianopyridone (4), and NBRI23477 B (5) have been unambiguously determined.
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