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(2007/10/02)(S)-2-[(S)-2-((S)-2-{(S)-2-[(S)-3-(Acetylamino-methylsulfanyl)-2-tert-butoxycarbonylamino-propionylamino]-3-carbamoyl-propionylamino}-3-hydroxy-propionylamino)-3-phenyl-propionylamino]-5-guanidino-pentanoic acid
[(S)-2-(2-{(S)-3-tert-Butoxy-2-[(S)-2-((S)-2-tert-butoxycarbonylamino-propionylamino)-4-carbamoyl-butyrylamino]-propionylamino}-acetylamino)-4-methyl-pentanoylamino]-acetic acid benzyl ester
(S)-2-{(S)-2-[(S)-3-tert-Butoxy-2-((S)-2-tert-butoxycarbonylamino-3-carbamoyl-propionylamino)-propionylamino]-3-phenyl-propionylamino}-5-guanidino-pentanoic acid
[(S)-2-(2-{(S)-3-tert-Butoxy-2-[(S)-2-((S)-2-tert-butoxycarbonylamino-propionylamino)-4-carbamoyl-butyrylamino]-propionylamino}-acetylamino)-4-methyl-pentanoylamino]-acetic acid
(S)-2-[(S)-2-((S)-2-Benzyloxycarbonylamino-3-tert-butoxy-propionylamino)-3-phenyl-propionylamino]-5-guanidino-pentanoic acid