Showing structure for (2r,3r,4s,6r,7r,8s,11s)-4,6-bis(acetyloxy)-14-[(2s)-1-methoxy-1-oxopropan-2-yl]-3,7,11-trimethyl-15-oxatricyclo[9.3.1.0²,⁷]pentadeca-1(14),12-dien-8-yl butanoate