Showing structure for (2r)-2-[(2r,6s)-6-[(2e,4s,7s,8r,9r,10s)-4,9-dihydroxy-7-methoxy-4,8,10-trimethyl-11-[(2z)-5-methyl-3-oxofuran-2-ylidene]undec-2-en-2-yl]-4-ethyl-3,6-dihydro-2h-pyran-2-yl]propanoic acid