1	SKD	2-acetylamino-7-(1,2-dihydroxy-ethyl)-3-hydroxy-6,8-dioxa-bicyclo[3.2.1]octane-5-carboxylic acid	1.000
2	19D	(1r,2r,3r,4r,5r,7r)-2-(acetylamino)-7-[(1r)-1,2-dihydroxyethyl]-4-fluoro-3-hydroxy-6,8-dioxabicyclo[3.2.1]octane-5-carboxylic acid	0.952