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1-({(4R,7S,10S,16S,19S)-19-amino-7-(2-amino-2-oxoethyl)-13-[(2S)-butan-2-yl]-16-(4-hydroxybenzyl)-10-[(1R)-1-hydroxyethyl]-20,20-dimethyl-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloico related products: