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tert-butyl [(1R,4S,8R,10E,13R,17S,20R)-4,17,24,24-tetramethyl-2,5,7,14,16,19,22-heptaoxo-1,8,13,20-tetrakis(sulfanylmethyl)-23-oxa-3,6,9,12,15,18,21-heptaazapentacos-10-en-1-yl]carbamate (non-preferre related products: