Cyclosporin A-Derivative 1 Free base

N-Methyl-L-leucyl-L-valyl-N-methyl-L-leucyl-L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-L-leucyl-N-methyl-L-valyl-(2S,3R,4R,6E)-3-(acetyloxy)-4-methyl-2-(methylamino)-6-octenoyl-(2S)-2-aminobutanoyl-N-methyl-glycine Methyl Ester is an intermediate in the synthesis of Cyclosporin AM 4N (C989410), a metabolite of Cyclosporin A (C988900). Cyclosporin A is a hydrophobic cyclic undecapeptide that is used as a potent immunosuppressive agent that has application in human organ transplantation. Cyclosporin A works by inhibiting subsets of T lymphocytes to facilitate organ transplantation.