51773-74-1 (1S,3Z,5Z,7S,9Z,11E,13S,15R)-13-hydroxy-2-{[(2R)-2-hydroxypropanoyl]amino}-1,4,10,19-tetramethyl-17,18-dioxo-16-oxabicyclo[13.2.2]nonadeca-3,5,9,11-tetraen-7-yl acetate 51733-45-0 (1S,2R,3Z,5E,7S,9Z,11Z,13S,15R,19R)-7-hydroxy-1,4,10,19-tetramethyl-17,18-dioxo-2-[(2-oxopropanoyl)amino]-16-oxabicyclo[13.2.2]nonadeca-3,5,9,11-tetraen-13-yl pentanoate 289494-45-7 4,17-Dioxabicyclo[14.1.0]heptadecane-5,9-dione,7,11-dihydroxy-3-[(1E)-2-[2-(methoxymethyl)-4-thiazolyl]-1-methylethenyl]-8,8,10,12-tetramethyl-, (1S,3S,7S,10R,11S,12S,16R)-