Tetrahedron p. 6859 - 6868 (1996)
Update date:2022-08-30
Topics:
Shi
Attygalle
Xu
Ahmad
Meinwald
The synthesis of 2-(12'-aminotridecyl)-pyrrolidine (1), a defensive alkaloid recently isolated from the Mexican bean beetle, Epilachna varivestis, is described. The (2S,12'R) configuration is assigned to this alkaloid by comparing the 1H NMR spectrum of its (S)-MTPA derivative with that of (R)- and (S)-MTPA [α-methoxy-α-(trifluoromethyl)phenylacetyl] derivatives of the synthetic sample. These results suggest that the seventeen carbon skeleton of 1 is acetate rather than proline derived.
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