8,10-bis(p-methoxybenzyl)-8,10-diaza-6-<(tert-butyldimetylsilyl)oxy>-5-(hydroxymethyl)bicyclo<4.2.2>decane-7,9-dione

8,10-bis(p-methoxybenzyl)-8,10-diaza-6-<(tert-butyldimetylsilyl)oxy>-5-vinylbicyclo<4.2.2>decane-7,9-dione