This alkaloid from Spiraea japonica L. fil. has been obtained as the crystalline
hydrochloride, m.p. l14-7°C. Chemical evidence has shown it to be acetyl_x0002_spiradine G. Oxidation with chromic acid in pyridine yields a hydroxy-Iactam in
which the hydroxyl and lactam groups are formed by oxidative cleavage of an
intermediate alkanolamine ether.
Einzelnachweise
Toda, Hirata., Tetrahedron Lett., 5565 (1968)
6β-Acetoxy-15,23-dideoxy-19,23-epoxyajaconine Upstream-Materialien And Downstream Produkte