(1S,5R,6R,8R,10R,12R)-5,8,15,15-Tetramethyl-6-phenyl-7,9-dioxa-3-thia-4-azatetracyclo[10.2.1.0^1,10.0^4,8]pentadecane 3,3-Dioxide

In the title compound, C₂₁H₂₉NO₄S, the seven-membered ring has a chair conformation and the oxazolidine ring a twist conformation.

-1