159105-12-1 AIDS-029507 AIDS029507 CYCLOPEPTOLIDE DER. Cyclo[L-alanyl-(2S)-2-piperidinecarbonyl-N-methyl-L-valyl-L-valyl-N-methyl-L-.alpha.-aspartyl-N-methyl-L-isoleucyl-N-methyl-L-isoleucylglycyl-N-methyl-L-valyl-O-methyl-L-tyrosyl]