156368-64-8 7H-Napth[2,1-h]oxacyclohexadecin, acetamide deriv. Acetamide, N-[3-[17-[(aminocarbonyl)oxy]-9,10,14a,16a, 17,18,19,20,20a,20b-decahydro-19-methoxy-3,10,13,13,20b- tetramethyl-7-oxo-7H-naphth[2,1-h]oxacyclohexadecin-9-yl]- 2-hydroxy-1-methylbutyl]-, [9R-[1E,3Z,5E,9R*(1R*,2S*,3R*),10R*,11E,13E,14aR*,16aR*,17S*,19S*,20aR*,20bR*]]- NSC680074 Superstolide A