(4S,7S,10S,13S)-4-苄基-13-(2-氯乙酰基)-10-((R)-1-羟乙基)-7-异丁基-2,5,8,11-四氧代-3,6,9,12-四氮杂十五烷-15-酸
(4S,7S,10S,13S)-4-Benzyl-13-(2-chloroacetyl)-10-((R)-1-hydroxyethyl)-7-isobutyl-2,5,8,11-tetraoxo-3,6,9,12-tetraazapentadecan-15-oic acid
(4S,7S,10S,13S)-4-苄基-13-(2-氯乙酰基)-10-((R)-1-羟乙基)-7-异丁基-2,5,8,11-四氧代-3,6,9,12-四氮杂十五烷-15-酸 98%