imidazolyl


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imidazolyl

[‚im·ə′da·zə‚lil]
(organic chemistry)
C3H3N2• A free radical derived from imidazole.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The isolated phytochemical compounds which included apocarotenoids, dipeptide, elliptosides, essential oils, fatty acids, flavonoids, histamines, imidazolyl carboxylic acids, steroids, triterpene saponins, and triterpenoids were identified and characterized using fast atom bombardment mass spectroscopy (FABMS), gas chromatographymass spectrometry (GC-MS), high performance liquid chromatography (HPLC), high-resolution electrospray ionisation mass spectroscopy (HRESIMS), and nuclear magnetic resonance (NMR) techniques (Table 2).
Previous reports have revealed that the long hydrophobic chain might effectively suppress the electron recombination and reduce the interaction between the dye molecules [40, 41], and in this study, DPI-T with octyl chain in the 1-site of the imidazolyl ring exhibited higher [V.sub.oc] than the sensitizers with ethyl chain in the same substitution site.
As shown in Scheme 1, compared with the imidazolyl group contained in zoledronic acid, the amino group contained in pamidronate disodium has the smaller space obstruction and a better affinity to the polycarboxyl group modified on the surface of the CDs, leading to much stronger quenching phenomenon to the fluorescence via photoinduced electron transfer and exhibiting excellent selectivity in detecting the two drugs with similar structures.
These kinds of inhibitors are pyrrolothiazole-related antagonists as tulopafant [38], thiazolidine derivatives as SM-10661 [39], imidazolyl derivatives as modipafant [40], and lexipafant [41] and hetrazepine derivatives as WEB-2086 and WEB-2170 [42].
The two imidazolyl groups of CDI were used to couple the amines of both CHT and PEI.
It is found from the literature [21 - 23] that thymine binds with metal ions through carbonyl oxygen O(2) and O(4) and/or imidazolyl nitrogen N(3).
reported the synthesis of some new pyrimidines derivatives bearing paracetamol and imidazolyl moieties.
In particular, this moiety is reactive toward the sulfhydryl groups of cysteines, however, it can react with other nucleophiles in amino acids, in the following order of decreasing reactivity: imidazolyl of histidines, thioether of methionines and amines from lysines (Figure 10).