2-Fluoro-N-((4aR,6R,7R,8R,8aS)-8-hydroxy-6-methoxy-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl)-5-nitro-benzamide

(4aR,6R,6aR,13aR,13bS)-6-Methoxy-2,2-dimethyl-10-nitro-4,4a,6a,7,13a,13b-hexahydro-6H-1,3,5,13-tetraoxa-7-aza-benzo[5,6]cyclohepta[1,2-a]naphthalen-8-one