166445-47-2 AIDS-081658 AIDS081658 Cyclo[N-methyl-L-alanyl-L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-L-leucyl-N-methyl-L-valyl-(3R)-3-hydroxy-N-methyl-L-leucyl-(2S)-2-aminobutanoyl-N-methylglycyl-N-methyl-L-alanyl-L-valyl] [MeLeu(3-OH)1, MeAla4,6]-CsA