2-Naphthalenecarboxamide, N-(13-chloro-2,3,6,7-tetradehydro-10-((2,6-dideoxy-3-C-methyl-alpha-L-ribo-hexopyranosyl)oxy)-1a,9-dihydro-20-oxo-23-((2,4,6-trideoxy-4-(dimethylamino)-alpha-L-lyxo-hexopyranosyl)oxy)-9,5-(epoxy(5,2)pyridinopropanoxyethano)-1)