1,3-Dimethyllumazine derivatives from Limnatis nilotica.

1,3-Dimethyllumazine derivatives from Limnatis nilotica.

Journal of natural products (2005-06-25)

Gerard Voerman, Silvia Cavalli, Gijsbert A van der Marel, Wolfgang Pfleiderer, Jacques H van Boom, Dmitri V Filippov

摘要

Two previously unknown lumazine derivatives, 1 and 2, have been isolated from the parasitic freshwater leech Limnatis nilotica. The structures of the compounds have been elucidated by NMR and unambiguously corroborated by chemical synthesis.