Showing structure for 2',18'-dihydroxy-16'-[(5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy]-5-oxo-7'-oxaspiro[oxolane-3,6'-pentacyclo[10.8.0.0²,⁹.0⁵,⁹.0¹³,¹⁸]icosane]-13'-carbaldehyde