InChI=1/C28H36N4O8/c1-16(2)12-22(27(37)38)32-26(36)21(14-17-6-4-3-5-7-17)30-24(34)15-23(28(39)40)31-25(35)20(29)13-18-8-10-19(33)11-9-18/h3-11,16,20-23,33H,12-15,29H2,1-2H3,(H,30,34)(H,31,35)(H,32,36)(H,37,38)(H,39,40 leucine, tyrosyl-beta-aspartylphenylalanyl- tyrosyl-beta-aspartylphenylalanylleucine