. . . . . . . . . . . . . . . . . . . . . . . "experimental"@en . . . . . . . "N-[2(S)-Cyclopentyl-1(R)-Hydroxy-3(R)Methyl]-5-[(2(S)-Tertiary-Butylamino-Carbonyl)-4-(N1-(2)-(N-Methylpiperazinyl)-3-Chloro-Pyrazinyl-5-Carbonyl)-Piperazino]-4(S)-Hydroxy-2(R)-Phenylmethyl-Pentanamide"@en . . . . .