FR264744

(3aR,4R,5Z,8S,15E)-4,11-dihydroxy-13-methoxy-2,2,8-trimethyl-3a,4,7,8,17,17a-hexahydro-10H-benzo[c][1,3]dioxolo[4,5-h][1]oxacyclotetradecin-10-one