"2,2′-(7-(2-((2,5-二氧吡咯烷-1-基)氧基)-2-氧乙基)-1,4,7-三氮烷-1,4-二基)二乙酸"
"2,2′-(7-(2-((2,5-二氧吡咯烷-1-基)氧基)-2-氧乙基)-1,4,7-三氮烷-1,4-二基)二乙酸"
"2,2′-(7-(2-((2,5-二氧吡咯烷-1-基)氧基)-2-氧乙基)-1,4,7-三氮烷-1,4-二基)二乙酸"
"2,2′-(7-(2-((2,5-二氧吡咯烷-1-基)氧基)-2-氧乙基)-1,4,7-三氮烷-1,4-二基)二乙酸"
"2,2′-(7-(2-((2,5-二氧吡咯烷-1-基)氧基)-2-氧乙基)-1,4,7-三氮烷-1,4-二基)二乙酸"