1 Z18 (3r,4s,5s,7r,9e,11r,12r)-12-ethyl-3,5,7,11-tetramethyl-2,8-dioxooxacyclododec-9-en-4-yl N,N-dimethylglycinate 1.000 2 QLE [(3r,4s,5s,7r,9e,11r,12r)-12-ethyl-3,5,7,11-tetramethyl-2,8-bis(oxidanylidene)-1-oxacyclododec-9-en-4-yl] 3-(dimethylamino)propanoate 0.774 3 E4H (3r,4s,5s,7r,9e,11r,12r)-12-ethyl-4-hydroxy-3,5,7,11-tetramethyloxacyclododec-9-ene-2,8-dione 0.714