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The most reactive amide as a transition-state mimic for cis-trans interconversion. 2015

Igor V Komarov, and Stanislav Yanik, and Aleksandr Yu Ishchenko, and John E Davies, and Jonathan M Goodman, and Anthony J Kirby
Institute of High Technologies and ‡Chemistry Department, Taras Shevchenko National University of Kyiv , Volodymyrska 60 and 64, 01601 Kyiv, Ukraine.

1-Azatricyclo[3.3.1.1(3,7)]decan-2-one (3), the parent compound of a rare class of 90°-twisted amides, has finally been synthesized, using an unprecedented transformation. These compounds are of special interest as transition-state mimics for the enzyme-catalyzed cis-trans rotamer interconversion of amides involved in peptide and protein folding and function. The stabilization of the amide group in its high energy, perpendicular conformation common to both systems is shown for the rigid tricyclic system to depend, as predicted by calculation, on its methyl group substitution pattern, making 3 by some way the most reactive known "amide".

UI MeSH Term Description Entries
D008958 Models, Molecular Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures. Molecular Models,Model, Molecular,Molecular Model
D008968 Molecular Conformation The characteristic three-dimensional shape of a molecule. Molecular Configuration,3D Molecular Structure,Configuration, Molecular,Molecular Structure, Three Dimensional,Three Dimensional Molecular Structure,3D Molecular Structures,Configurations, Molecular,Conformation, Molecular,Conformations, Molecular,Molecular Configurations,Molecular Conformations,Molecular Structure, 3D,Molecular Structures, 3D,Structure, 3D Molecular,Structures, 3D Molecular
D006575 Heterocyclic Compounds, 3-Ring A class of heterocyclic compounds that include a three-ring fused structure. Both aromatic or non-aromatic ring structures are included in this category. Fused Heterocyclic Compounds, Three-Ring,Heterocyclic Cpds, 3 Ring,Three Ring Heterocyclic Compounds,3-Ring Heterocyclic Compounds,Fused Heterocyclic Compounds, Three Ring,Heterocyclic Compounds, 3 Ring
D000577 Amides Organic compounds containing the -CO-NH2 radical. Amides are derived from acids by replacement of -OH by -NH2 or from ammonia by the replacement of H by an acyl group. (From Grant & Hackh's Chemical Dictionary, 5th ed) Amide
D001372 Aza Compounds Organic chemicals where carbon atoms have been replaced by nitrogen atoms. Compounds, Aza
D013237 Stereoisomerism The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer

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