Neighbouring Group Participation of C-6 Substituents of Glucose Derivatives on the Stereoselectivity of the N-Glycosidic Linkage of Glycopeptides

The imine structure was found to be energetically favorable, as indicated by the calculated heats of formation, Gibbs free energy, LUMO and HOMO, and charges. The proton transfer

For the NO 2 substitutent (imine 5 and enamine 5a), the electrostatic attraction between the positive charge on C2(0.007) and negative charge on N1( − 0. 188) in compound 5 is less

The proof of the theorem will use the correspondence between full-length F q -linear codes and multisets of points in a finite projective geometry over F q.. As a byproduct of

Since one easily obtains, that a pair (A, B ) corresponding to an element of M ˜ reg nc (n) for n ≤ 4 satisfies condition (ii) of corollary 6.1.2 (see the end of the next

Figure S5, Orientation of Asp96 in the representative structure of the simulations of four complexes of LecB: (A) a- L -fucose (closed), (B) a- D -mannose (open), (C) 1-deoxy L

The protective group 26, bearing the Tx moiety directly linked to the aromatic ring of the nppoc chromophore, was synthesized by Suzuki ± Miyaura reaction [47] between 6

The unified organic phase was washed with saturated NaHCO 3 -solution, dried over MgSO 4 and the solvent evaporated.. After column chromatography (silica gel, petrol

The observations regarding the linker-length dependence of fluorescence quantum yield and initial triplet yield indicate that intramolecular quenching of the singlet