Showing structure for (1s,2s,7r,10r,11r,12r)-4-hydroxy-1,5-dimethyl-9-oxo-8-oxatetracyclo[8.3.1.0²,⁶.0⁷,¹¹]tetradec-5-en-12-yl 3,4-dihydroxy-2-methylidenebutanoate