N0S n0s (4S,7aR,9aR,10S,11E,15R)-6'-chloro-10-hydroxy-15-methyl-3',4',7a,8,9,9a,10,13,14,15-decahydro-2'H,3H,5H-spiro[1,19-(ethanediylidene)-16lambda~6~-cyclobuta[i][1,4]oxazepino[3,4-f][1,2,7]thiadiazacyclohexadecine-4,1'-naphthalene]-16,16,18(7H,17H)-trione N0S