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Beilstein J. Org. Chem. 2017, 13, 2535–2548, doi:10.3762/bjoc.13.250
Graphical Abstract
Figure 1: (A) Adamantylated azoles and derivatives of 1,2,4-triazolo[5,1-c][1,2,4]triazine with antiviral act...
Scheme 1: Synthesis and adamantylation of 15N-labelled 13-15N2 and JHN and JCN data confirming the structures...
Scheme 2: Synthesis and adamantylation of 15N-labelled 20-15N2 and JHN and JCN data confirming the structures...
Scheme 3: Synthesis and adamantylation of 15N-labelled 23-15N2 and JHN and JCN data confirming the structure ...
Scheme 4: Isomerization of 15a in the presence of tetrazolo[1,5-b][1,2,4]triazin-7-one 13-15N2 and isotopic e...
Figure 2: 1D 15N NMR spectra of 30–70 mM 13-15N2, 15a,b-15N2, 20-15N2, 21a,b-15N2, 23-15N2 and 24-15N2 in DMS...
Figure 3: Signals of the C1' and C6 atoms in the proton-decoupled 1D 13C NMR spectra of 30–42 mM 15a,b-15N2, ...
Figure 4: Detection and quantification of the 1H-15N spin–spin interactions in compound 15a-15N2 (DMSO-d6, 45...
Figure 5: ORTEP diagrams of the X-ray structures of compounds 15a-15N2 (a) and 15b-15N2 (b). For clarity, the...
Scheme 5: Mechanism of the isomerization of compounds 15a and 15b.