One of two closely related peptide alkaloids found in the roots of Ceanothus
integerrimus Hook et Am., this base is obtained as colourless needles when
crystallized from CHClrlight petroleum. It is strongly laevorotatory with
[α]20D - 228° (c 0.2, CHCI3). The ultraviolet spectrum in MeOH has absorption
maxima at 280 m with a shoulder at 252 mJ.1. The structure has been determined
mainly from the mass spectrum fragmentation pattern.
