PubMed:35364384 18 Projects
Synthesis of novel d-α-galactopyranosyl-l-seryl/l-threonyl-l-alanyl-l-alanine as useful precursors of new glycopeptide antibiotics with computational calculations studies.
New, simple, synthetic routes for the preparation of novel glycopeptide antibiotics are described. The structures of the synthesized compounds are elucidated by IR, two-dimensional NMR spectroscopy, and mass spectrometry. The stability of the new glycopeptide derivatives 10a,b is confirmed by assessing the physical character, HOMO-LUMO gap energy, ESP, and the corresponding correlation of 2D-NMR analysis. Furtherly, the target precursors are investigated via the DFT/B3LYP/6-311(G) basis set.
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