InChI=1S/C25H33N5O5/c1-14(2)10-19-25(35)30-9-5-8-21(30)24(34)29-20(13-31)23(33)27-18(22(32)28-19)11-15-12-26-17-7-4-3-6-16(15)17/h3-4,6-7,12,14,18-21,26,31H,5,8-11,13H2,1-2H3,(H,27,33)(H,28,32)(H,29,34)/t18-,19-,20-,21+/m0/s1

dataset for 13C nuclear magnetic resonance spectroscopy (13C NMR) 13C NMR (125 MHz, dimethyl sulfoxide, ppm) δ = 171.8 (Cq, CO), 170.8 (Cq, CO), 170.1 (Cq, CO), 169.2 (Cq, CO), 136.5 (Cq, trp-Car), 129.7 (Cq, trp-Car), 128.8 (+, trp-CarH), 128.0 (+, trp-CarH), 124.4 (+, trp-CarH), 118.2 (+, trp-CarH), 111.4 (Cq, trp-Car), 108.9 (+, trp-CarH), 61.2 (+, trp-CαH), 60.8 (–, ser-CH2), 57.7 (+, pro-CαH), 55.6 (+ leu-CαH), 50.2 (+, ser-CαH), 47.8 (–, pro-CδH2), 37.6 (–, leu-CH2), 34.8 (–, trp-CH2), 31.8 (–, pro-CβH2), 23.9 (+, leu-CH), 22.9 (+, leu-CH3), 21.9 (+, leu-CH3), 20.9 (–, pro-CγH2). The spectrum contains multiple signal sets. Chemical shifts of the most prominent isomer are given.Impurity (TFA): 158.3 (q, J = 36.1 Hz)