(4R,10S)-16-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-10-hydroxymethyl-14 -methoxy-13-methyl-4-(3-methyl-1,2,4-oxadiazol-5-yl) -6-thioxo-1,3,4,5,6,7,8,9,10,12-decahydro-11,2,5-benzoxathiaazacyclotetradecin-12-one

allyl 3-[dimethyl(thexyl)silyloxy]-2-[(R)-2-((R)-3-hydroxy-3-(methoxycarbonyl)-propionylamino)-2-(3-methyl-1,2,4-oxadiazol-5-yl)ethylsulfanylmethyl]-5-methoxy-6-methylbenzoate

2-[(R)-2-((R)-4,5-Dihydroxy-pentanoylamino)-2-(3-methyl-[1,2,4]oxadiazol-5-yl)-ethylsulfanylmethyl]-3-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-5-methoxy-6-methyl-benzoic acid allyl ester

allyl 2-[(R)-2-[(R)-3-(2,2-dimethyl-1,3-dioxolan-4-yl)propionylamino]-2-(3-methyl-1,2,4-oxadiazol-5-yl)ethylsulfanylmethyl]-3-[dimethyl(thexyl)silyloxy]-5-methoxy-6-methylbenzoate

(8R,14S)-4-[Dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-2-methoxy-1-methyl-8-(3-methyl-[1,2,4]oxadiazol-5-yl)-10-thioxo-14-trityloxymethyl-7,8,9,10,11,12,13,14-octahydro-5H-15-oxa-6-thia-9-aza-benzocyclotetradecen-16-one