Hexadecanoic acid 3-[(R)-2-{(S)-2-tert-butoxy-1-[(S)-2-tert-butoxy-1-((S)-1-tert-butoxycarbonyl-2-carbamoyl-ethylcarbamoyl)-ethylcarbamoyl]-ethylcarbamoyl}-2-(2,2,2-trichloro-ethoxycarbonylamino)-ethylsulfanyl]-2-hexadecanoyloxymethyl-propyl ester

Hexadecanoic acid 3-[(R)-2-{(S)-2-tert-butoxy-1-[(S)-2-tert-butoxy-1-((S)-1-tert-butoxycarbonyl-2-carbamoyl-ethylcarbamoyl)-ethylcarbamoyl]-ethylcarbamoyl}-2-(2,2,2-trichloro-ethoxycarbonylamino)-ethylsulfanyl]-propyl ester

(S)-2-((S)-3-tert-Butoxy-2-{(S)-3-tert-butoxy-2-[(R)-3-(2-dodecyloxy-ethylsulfanyl)-2-(2,2,2-trichloro-ethoxycarbonylamino)-propionylamino]-propionylamino}-propionylamino)-succinamic acid tert-butyl ester

(S)-2-((S)-3-tert-Butoxy-2-{(S)-3-tert-butoxy-2-[(R)-3-(3-dodecyloxy-propylsulfanyl)-2-(2,2,2-trichloro-ethoxycarbonylamino)-propionylamino]-propionylamino}-propionylamino)-succinamic acid tert-butyl ester

Docosanoic acid 3-[(R)-2-{(S)-2-tert-butoxy-1-[(S)-2-tert-butoxy-1-((S)-1-tert-butoxycarbonyl-2-carbamoyl-ethylcarbamoyl)-ethylcarbamoyl]-ethylcarbamoyl}-2-(2,2,2-trichloro-ethoxycarbonylamino)-ethylsulfanyl]-propyl ester