(2S)-2-Hydroxy-2-[(1S)-1-hydroxyethyl]-3-methylbutanoic Acid [(1R,7aR)-2,3,5,7a-tetrahydro-1-hydroxy-4-oxido-1H-pyrrolizin-7-yl]methyl Ester; [1R-[1?,7(2S*,3S*),7a?]]-2,3-dihydroxy-2-(1-methylethyl)butanoic Acid (2,3,5,7a-tetrahydro-1-hydroxy-1H-pyrrolizin-7-yl)methyl Ester N-Oxide;(+)-Lycopsamine N-Oxide