3,5-Dichloro-4-oxo-N-[[(5aR)-1,4,5aβ,6-tetrahydro-1,7-dioxo-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazine]-6α-yl]-1(4H)-pyridineacetamide

(5aR-trans)-3,5-dichloro-4-oxo-N-(1,4,5a,6-tetrahydro-1,7-dioxo-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)-4H-pyridine-1-acetamide