2-[4-(4-{(S)-2-[[(E)-5-(tert-Butyl-diphenyl-silanyloxy)-pent-3-enyl]-(toluene-4-sulfonyl)-amino]-2-methoxycarbonyl-ethyl}-phenoxy)-butyl]-malonic acid dimethyl ester

(S)-2-[[(E)-5-(tert-Butyl-diphenyl-silanyloxy)-pent-3-enyl]-(toluene-4-sulfonyl)-amino]-3-[4-(tetrahydro-pyran-2-yloxy)-phenyl]-propionic acid methyl ester

(2E)-1-{[(N,N-diisopropyl)carbamoyl]oxy}-5-[(triisopropylsilyl)oxy]pent-2-ene

(S)-2-[((E)-5-Chloro-pent-3-enyl)-(toluene-4-sulfonyl)-amino]-3-[4-(tetrahydro-pyran-2-yloxy)-phenyl]-propionic acid methyl ester

(S)-2-[[(E)-5-(tert-Butyl-diphenyl-silanyloxy)-pent-3-enyl]-(toluene-4-sulfonyl)-amino]-3-[4-(4-hydroxy-butoxy)-phenyl]-propionic acid methyl ester