Cyclosporin A-Derivative 1 is a non-immunosuppressive Cyclosporin A derivative. The cyclosporin is acylated on the butenyl-methyl-threonine side chain and then subjected to a ring-opening reaction (the ring opens between the sarcosine and the N-methyl-leucine residues). Cyclosporin A-Derivative 1 is a linear peptide intermediate.