Cyclosporin A
Interesting Facts about 3-[[6-amino-2-[[3-hydroxy-2-[[1-(5-oxopyrrolidine-2-carbonyl)pyrrolidine-2-carbonyl]amino]propanoyl]amino]hexanoyl]amino]-4-[[2-[[1-benzyl-2-[[1-[[2-[[1-[(1-carbamoyl-3-methylsulfanyl-propyl)carbamoyl]-3-methyl-butyl]amino]-2-oxo-ethyl]carbamoyl]-2-methyl-butyl]amino]-2-oxo-ethyl]amino]-1-methyl-2-oxo-ethyl]amino]-4-oxo-butanoic acid
This compound represents a complex and fascinating example in the field of medicinal chemistry.