2]ArX complex, is usually accepted as the dominant reaction pathway [4,23-25], but at the same time a similar reaction can take place with the corresponding cis-isomer
, which is especially important for chelating ligands, where the formation of trans-[PdL.
Fermented to the same high quality as that available from Japan, the product is a "natural," all-trans CoQ10 with no cis-isomer
As shown in Table 1, the proportion of cis-isomer
decreases as the size and bulk of the alcohol solvent increases.
Cidoxepin is the cis-isomer
of the widely prescribed tricyclic compound doxepin.
The activity of the cis-isomer
is 7 times weaker, probably because of its nonplanar conformation.
Total [beta]-carotene concentration and the concentration of some [beta]-carotene cis-isomers
were measured spectrophotometrically and by high-performance liquid chromatography, respectively.
Similar to the notched IZOD impact strength, there is a gradual increasing trend in the tensile strength with increasing the content of cis-isomers
of rubber type.
Concerning the stereoselectivity of glucuronidation, cis-isomers
were glucuronidated faster than trans-isomers (15).