Showing structure for 4-[(1r,2s,4r,5s,6r,9s,10r,13s,15s)-4,9-dihydroxy-15-methoxy-5-methyl-16-oxapentacyclo[13.2.2.0¹,¹³.0²,¹⁰.0⁵,⁹]nonadecan-6-yl]-5h-furan-2-one