(1S,3R,7S,8S,8aR)-8-(2-{(4R,6R)-3-(4-hydroxy-3-methoxybenzyl)-4-[2-(methylamino)-2-oxoethyl]-2-oxo-1,3-oxazinan-6-yl}ethyl)-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl (2S)-2-methylbutanoate
(1s,3r,7s,8s,8ar)-8-(2-{(4r,6r)-3-(4-hydroxy-3-methoxybenzyl)-4-[2-(methylamino)-2-oxoethyl]-2-oxo-1,3-oxazinan-6-yl}ethyl)-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl (2s)-2-methylbutanoate