12-oxa-20-thia-3,6,9,16,21-pentaazabicyclo[16.2.1]heneicosa-1(21),18-diene-4,7,10,13,17-pentone, 15-ethyl-2,6,9,11-tetramethyl-8-(1-methylethyl)-5-(phenylmethyl)-, (2S,5S,8S,11S,15S)- 5-Benzyl-15-ethyl-8-isopropyl-2,6,9,11-tetramethyl-12-oxa-20-thia-3,6,9,16,21-pentaaza-bicyclo[16.2.1]henicosa-1(21),18-diene-4,7,10,13,17-pentaone InChI=1/C30H41N5O6S/c1-8-21-15-24(36)41-19(5)29(39)35(7)25(17(2)3)30(40)34(6)23(14-20-12-10-9-11-13-20)27(38)31-18(4)28-33-22(16-42-28)26(37)32-21/h9-13,16-19,21,23,25H,8,14-15H2,1-7H3,(H,31,38)(H,32,37)/t18-,19-,21-,23-,25-/m0/s Obyanamide rel-(2R,5R,8R,11R,15R)-5-benzyl-15-ethyl-8-isopropyl-2,6,9,11-tetramethyl-12-oxa-20-thia-3,6,9,16,21-pentaazabicyclo[16.2.1]henicosa-1(21),18-diene-4,7,10,13,17-pentone