Downstream Products: 3-[[6-amino-2-[[3-hydroxy-2-[[1-(5-oxopyrrolidine-2-carbonyl)pyrrolidine-2-carbonyl]amino]propanoyl]amino]hexanoyl]amino]-3-[1-[[1-[[1-[[1-[(1-carbamoyl-3-methylsulfanyl-propyl)carbamoyl]-3-methyl-butyl]carbamoylmethylcarbamoyl]-2-methyl-butyl]carbamoyl]-