Figure 1 - full size

Figure 1. Figure 1. The chemical structures of influenza neuraminidase inhibitors: 1, sialic acid (N-acetylneuraminic acid (Neu5Ac)); 2, 2-deoxy-2,3-dehydro-N-acetylneuraminic acid (Neu5Ac2en); 3, 4-amino-Neu5Ac2en; 4, Zanamivir, 4-guanidino-Neu5Ac2en; 5, 5-N-acetyl-4-guanidino-6-methyl(propyl) carboxamide-4,5-dihydro-2H-pyran-2-carboxylic acid; 6, 5-N-acetyl-4-amino-6-diethyl carboxamide-4,5-dihydro-2H-pyran-2-carboxylic acid; and 7, GS4071, 4-N-acetyl-5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid.

The above figure is reprinted by permission from Cell Press: Structure (1998, 6, 735-746) copyright 1998.