Solidago altissima

Another phytochemical that stimulated males and females differentially was T-cadinol, extracted from Solidago altissima L. It stimulated male and female antennae, but in comparison with germacrene-D, the responses were neither as sex specific nor as strong (Nishino et al., 1977c). 

Cis-polyisoprene isolated from the leaves of goldenrod (Solidago altissima) was separated into two fractions by GPC, S-l (Mn=76,000) and S-2 (Mn=120,000). The 13C NMR spectra of both... 

Figure 4. Aliphatic carbon signals in cis-polyisoprene from Solidago altissima observed with a pulse repetition time of 7 s for 45° pulse ( denotes signals due to impurities). Reproduced with permission from Ref. 13. Copyright 1983, The American Chemical Society.

Several nematicidal acetylenic compounds have been isolated most possess thiophene structures and are from members of the Asteraceae family. Another recently isolated compound with this activity is (8/ ,9jR,10S)-9,10-epoxyhep-tadec-16-ene-4,6-diyne-8-ol (16) from Cirsium japonicum (Kawazuetal, 1980) (Fig. 3.13). l-Phenylhepta-l,3,5-triyne and 2-phenyl-5-(l -propynyl)-thiophene from Coreopsis lanceolata and Z-dehydromatricaria ester (5) from Solidago altissima have been shown to be fly ovicidal substances (Seigler, 1983). 

FIGURE 20.43 Biotransformation of germacrone (118) by Solidago altissima cells. 

The same substrate (118) was treated in plant ceU cultures of Solidago altissima (Asteraceae) for 10 days to give various hydroxylated products (121, 127, 125, 128-132) (Sakamoto et al., 1994). Guaiane (121) underwent further rearrangement C4-C5, cleavage and C5-C10 trans-mn x s cycl-ization to the bicyclic hydroxyketone (128) and diketone (129) (Sakamoto et al., 1994) (Figure 15.43). 

In order to compare the metabolites between mammals and microorganisms, the essential oil (2 g/rabbit) containing (-)-cyclocolorenone (103) obtained from Solidago altissima was administered in rabbits to obtain two metabolites 9p-hydroxycyclocolorenone (493) and 10-hydroxycyclo-colorenone (494) (Asakawa et al., 1986). 10-Hydroxyaromadendrane-type compounds are well... 

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