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3-(7-hydroxy-3,8-dithiatricyclo[5.1.0.0~2,4~]oct-5-en-4-yl)-N-propanoyl-L-alanyl-L-phenylalanyl-L-valyl-L-asparaginyl-L-alanyl-N-{(1S,3Z)-1-[(2-amino-2-oxoethyl)carbamoyl]-4-[(diaminomethylidene)amino related products: