2,5-piperazinedione, 3-(1H-indol-3-ylmethyl)-6-(1-methylethyl)-3,6-bis(methylthio)-, (3R,6R)- 3-(1H-Indol-3-ylmethyl)-6-isopropyl-3,6-bis-methylsulfanyl-piperazine-2,5-dione InChI=1/C18H23N3O2S2/c1-11(2)18(25-4)16(23)20-17(24-3,15(22)21-18)9-12-10-19-14-8-6-5-7-13(12)14/h5-8,10-11,19H,9H2,1-4H3,(H,20,23)(H,21,22)/t17-,18-/m1/s Polanrazine B rel-(3R,6R)-3-(1H-indol-3-ylmethyl)-6-isopropyl-3,6-bis(methylthio)piperazine-2,5-dione