1227637-23-1 
 
40224-39-3 
 
(((2,7-bis(((3S,5R)-3,5-dimethylpiperidin-1-yl)sulfonyl)anthracene-9,10-diylidene)bis(azanylylidene))bis(oxy))bis(methylene)bis(2-((tert-butoxycarbonyl)amino)-3-methylbutanoate) 
 
(((3,6-bis(((3S,5R)-3,5-dimethylpiperidin-1-yl)sulfonyl)-10-(hydroxyimino)anthracen-9(10H)-ylidene)amino)oxy)methyl(tert-butoxycarbonyl)valinate 
 
(((2,7-bis(((3S,5R)-3,5-dimethylpiperidin-1-yl)sulfonyl)-10-(hydroxyimino)anthracen-9(10H)-ylidene)amino)oxy)methyl(tert-butoxycarbonyl)-L-valinate