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A concise enantioselective synthesis of the diazatricyclic core of alkaloid TAN1251C is reported. The method featured a stereoselective formation of the iodide intermediate 16b (in 2:1 ratio) from homoallylic amine 11b by iodine‐promoted iodoaminocyclization, a previously claimed to be unsuccessful reaction. The intermediate 16b was converted to the tricyclic core of TAN1251C 28 in five steps. During...
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