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Enantioselective synthesis of polyzonimine and nitropolyzonamine, spirocyclic compounds from the defensive glands of a millipede, Polyzonium rosalbum
Abstract Asymmetric Michael addition of the enamine derived from 2,2-dimethylcyclopentanecarboxaldehyde and ( S )-prolinol methyl ether to nitroethylene afforded the adduct of 76% ee, which finallyExpand
Enantioselective synthesis of (+)-polyzonimine, defensive monoterpene alkaloid produced by a milliped Polyzonium rosalbum, and determination of its S absolute configuration by Its conversion to
A adicao de Michael da enamina derivada do 2,2-dimetilciclopentanocarboxaldeido e do eter metilico do (S)-prolinol com o nitroetileno, forneceu o aduto correspondente em 75-76% ee, o qual foiExpand