(Diethoxy-phosphoryl)-acetic acid (E)-(R)-4-{(2R,6R)-6-[(2E,6Z)-(R)-4-(tert-butyl-dimethyl-silanyloxy)-8-hydroxy-6-methyl-octa-2,6-dienyl]-4-methylene-tetrahydro-pyran-2-yl}-1-(3,4-dimethoxy-benzyloxymethyl)-3-methyl-but-3-enyl ester

(R)-[(2E,8E,10Z,14E)-(1R,5S,13R,17R)-13-(tert-Butyl-dimethyl-silanyloxy)-3,11-dimethyl-19-methylene-7-oxo-6,21-dioxa-bicyclo[15.3.1]henicosa-2,8,10,14-tetraen-5-yl]-(4-methoxy-benzyloxy)-acetic acid

(2Z,4E)-Hexa-2,4-dienoic acid [(R)-((2E,8E,10Z,14E)-(1R,5S,13R,17R)-13-hydroxy-3,11-dimethyl-19-methylene-7-oxo-6,21-dioxa-bicyclo[15.3.1]henicosa-2,8,10,14-tetraen-5-yl)-(4-methoxy-benzyloxy)-methyl]-amide

(2Z,4E)-Hexa-2,4-dienoic acid [(R)-[(2E,8E,10Z,14E)-(1R,5S,13R,17R)-13-(tert-butyl-dimethyl-silanyloxy)-3,11-dimethyl-19-methylene-7-oxo-6,21-dioxa-bicyclo[15.3.1]henicosa-2,8,10,14-tetraen-5-yl]-(4-methoxy-benzyloxy)-methyl]-amide

(2E,8E,10Z,14E)-(1R,5R,13R,17R)-13-(tert-Butyl-dimethyl-silanyloxy)-5-[(R)-2-(3,4-dimethoxy-benzyloxy)-1-(4-methoxy-benzyloxy)-ethyl]-3,11-dimethyl-19-methylene-6,21-dioxa-bicyclo[15.3.1]henicosa-2,8,10,14-tetraen-7-one