methyl-5-{3-[2-(methoxycarbonyl)ethyl]-4-[6-(4-methoxyphenyl)-(5E)-hexenyloxy]phenyl}pentanoate

methyl-3-{5-[4-(dimethylaminocarbonyl)butyl]-2-[6-(4-methoxyphenyl)-(5E)-hexenyloxy]phenyl}propanoate

methyl-3-{5-[3-(mmethoxycarbonyl)benzoylamino]-2-[6-(4-methoxyphenyl)-(5E)-hexenyloxy]phenyl}propanoate

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

methyl 4-{3-[2-(dimethylaminocarbonyl)ethyl]-4-[6-(4-methoxyphenyl)-(5E)-hexenyloxy]phenylaminocarbonyl}butanoate