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Syntheses of [13C,15N]-labeled polyamines

✍ Scribed by Takeshi Hara; Yong Ji Xu; Hitomi Sasaki; Masaru Niitu; Keijiro Samejima


Publisher
John Wiley and Sons
Year
2000
Tongue
French
Weight
318 KB
Volume
43
Category
Article
ISSN
0022-2135

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πŸ“œ SIMILAR VOLUMES


Nitrogen-15 n.m.r. studies of 13C, 15N l
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## Abstract ^15^N n.m.r. spectra of [^13^C‐2, 3‐^15^N~2~‐__guanidino__]arginine and [^13^C, ^15^N~2~] urea were obtained in D~2~O and H~2~O at a variety of pH values both with and without proton decoupling. The effects of the proton exchange rate are readily observable in the proton coupled ^15^N s

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## Abstract Anandamide (Figure 1a) (arachidonyl ethanolamide, AEA), (5Z,8Z,11Z,14Z)‐N‐(2‐hydroxyethyl)‐5,8,11,14‐Eicosatetraenamide, is an endogenous cannabinoid ligand possessing important biological activity. The conformation of AEA in its native receptor binding environment is particularly of in

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## Abstract Measurement of the ^13^C NMR spectra of the bridgehead nitro compounds __1a–5a__ has been performed. It is found that one‐bond ^13^Cο£Ώ^15^N coupling is not necessarily a reflection of the degree of s character of the bridgehead carbon exocyclic bonding orbital. Although the magnitude of