Lagerstroemia indica

Figure 1. Continued. Lattice structure in crape myrtle (Lagerstroemia indica) occurs as branches of this thin-barked shrub merge and grow together. The branches are almost rigid, but the points of intersection ("crosslinks") can be either weak (b) or relatively strong (c). (Courtesy of Bernard Hallet, Quaternary Research Center, University of Washington, Seattle, WA 98105.)...

L-alaninol (24). Decinine (2) was isolated by Ferris from Decodon verti-cillatus (2, 17), from Lagerstroemia indica L. (25), and from Lythrum lan-ceolatum (9). This alkaloid was shown to be identical to the dihydro derivative of lythrine (22). 

Decamine (18) was isolated by Ferris from D. verticillatus (2) and from Lagerstroemia indica by Ferris et al. (25). Ferris established the identity of decamine with dihydrovertine. 

Verticillatine (20) was isolated by Ferris from Decodon verticillatus (2). Dihydroverticillatine (21) and lagerstroemine (23) were isolated by Ferris et al. from Lagerstroemia indica (25) and sinicuichine (22) by Blomster et al. from H. salicifolia (1). Lagerstroemine was also detected in Plantago psylium... 

Lagerine was isolated by Ferris et al. from Lagerstroemia indica (17), and methyllagerine was isolated by Hanaoka et al. (42) from L. indica grown in Japan. The structure of lagerine is unique since it was not possible to convert this base to any known Lythraceae alkaloid. The basic skeletons of O-methyllagerine and vertaline are the same since the mass spectra of the two alkaloids are almost identical. The alkaloids differ in the substitution pattern on the biphenyl ether chromophore, a fact which is reflected in the UV spectra. 

Lagerine, a biphenyl ether alkaloid of Lagerstroemia indica, was assigned structure... 

Lagerstroemine and lagerine were isolated as major alkaloids together with decinine, decamine, dihydroverticillatine, and methyllagerine from Lagerstroemia indica. These alkaloids are concentrated in the seed pods, with trace amounts in... 

Ferris J P, Briner R C, Boyce C B 1971 Lythraceae alkaloids. IX. The isolation and structure elucidation of the alkaloids of Lagerstroemia indica L. J Am Chem Soc 93 2958-2962... 

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