2,2-Dimethyl-propionic acid (Z)-3-[(4R,5S,6S)-6-(2-hydroxy-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-but-2-enyl ester

(4S,5S,6R)-4-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-6-[(Z)-3-(tert-butyl-diphenyl-silanyloxy)-1-methyl-propenyl]-2,2,5-trimethyl-[1,3]dioxane

2,2-Dimethyl-propionic acid (Z)-3-{(4R,5S,6S)-2,2,5-trimethyl-6-[2-(1-phenyl-1H-tetrazol-5-ylsulfanyl)-ethyl]-[1,3]dioxan-4-yl}-but-2-enyl ester

6-Benzyloxycarbonylamino-7-methoxy-3-oxo-3,4-dihydro-2H-benzo[1,4]thiazine-8-carboxylic acid methyl ester

(8-{(Z)-4-[(4R,5S,6S)-6-((2E,4E,6E)-(R)-10-Hydroxy-8-methoxy-deca-2,4,6-trienyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-pent-3-enyl}-7-methoxymethoxy-3-oxo-3,4-dihydro-2H-benzo[1,4]thiazin-6-yl)-carbamic acid allyl ester