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Total synthesis of Coniceine:
Reference: Jung, M. E.; Choi, Y. M. J. Org. Chem. 1991, 56, 6729DOI
Keywords: O-H -> O-SO2R --- N-Bn -> N-H --- Hydrogenation-Ene --- Carboxamide -> Amine --- Diels-Alder, Intram --- Amine-5 --- N-H -> N-Alkyl --- Amine-4 --- N-H -> N-C(O)R --- Dehydrosulfonoxylation -> Enamine --- Electrocyclic-4π
Reagents: NH2CHPh2 --- MeSO2Cl, NEt3 --- HCl --- H2, Pd --- NEt3 --- KOtBu --- Flash vacuum pyrolysis --- H2, cat --- AlH4-Li+

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