Showing structure for (10r,11r,15r,16r)-2-methoxy-14-oxo-16-(3,4,5-trimethoxyphenyl)-4,6,13-trioxatetracyclo[7.7.0.0³,⁷.0¹¹,¹⁵]hexadeca-1(9),2,7-trien-10-yl acetate