ethyl-4-{3-[2-(ethoxycarbonyl)ethyl]-4-[6-(4-methoxyphenyl)-(5E)-hexenyloxy]phenylcarbonyl}butanoate

tert-butyl-3-{2-[6-(4-methoxyphenyl)-(5E)-hexenyloxy]--5-(4-methylphenyl)sulfonylaminophenyl}propanoate

4-{3-(2-tert-Butoxycarbonyl-ethyl)-4-[(E)-6-(4-methoxy-phenyl)-hex-5-enyloxy]-phenylcarbamoyl}-butyric acid

ethyl-3-{2-[6-(4-methoxyphenyl)-(5E)-hexenyloxy]-5-n-heptanoylaminophenyl}propanoate

4-{3-[2-(tert-butoxycarbonyl)ethyl]-4-[6-(4-methoxyphenyl)-(5E)-hexenyloxy]phenylaminosulfonyl}butanoic acid