Beilstein J. Org. Chem.2005,1, No. 12, doi:10.1186/1860-5397-1-12
protonated, and the corresponding ammonium ions mimick the charge of the presumed transition states or intermediates of the enzymatic glycoside hydrolyses [18].
More recently, attention has been increasingly accorded to seven- and eight-membered ring systems [19][20][21][22][23][24][25][26][27][28][29][30