(6S)-6-tert-Butyl-3,6-dihydro-5-methoxy-3-methyl-3-phenyl-2H-1,4-oxazin-2-on

methyl (S)-2-(((1R,2R,5R)-2-hydroxy-2,6,6-trimethylbicyclo[3.1.1]heptan-3-ylidene)amino)propanoate