Showing structure for (1s,4r,12s)-12-isopropyl-16-methoxy-1,5,5,15,17,17-hexamethyl-8-methylidene-19-oxatetracyclo[9.8.0.0⁴,⁷.0¹³,¹⁸]nonadeca-13(18),15-dien-14-one