methyl 2-[(1E,4R)-4-(benzyloxy)-5-{(4R,6S)-6-[3-(benzyloxy)propyl]-2,2-dimethyl-1,3-dioxan-4-yl}pent-1-enyl]-6-methoxybenzoate

3-[(1S,11S,13S,15R)-7,15-Bis-(tert-butyl-dimethyl-silanyloxy)-9-oxo-10,17-dioxa-tricyclo[11.3.1.03,8]heptadeca-3,5,7-trien-11-yl]-propionaldehyde

(1S,11S,13S,15R)-7,15-Bis-(tert-butyl-dimethyl-silanyloxy)-11-(3-hydroxy-propyl)-10,17-dioxa-tricyclo[11.3.1.03,8]heptadeca-3,5,7-trien-9-one

(3S,5R,7R)-7-(benzyloxy)-3-[3-(benzyloxy)propyl]-5-hydroxy-14-methoxy-3,4,5,6,7,8-hexahydro-1H-2-benzoxacyclododecin-1-one

(1S,11S,13R,15R)-15-Benzyloxy-11-(3-benzyloxy-propyl)-7-methoxy-10,17-dioxa-tricyclo[11.3.1.03,8]heptadeca-3(8),4,6-trien-9-one