Table 3 LC–QTOF–MS data of P1-P3
Peaks | Types | [M−H]− (m/z) | Formula | Error (ppm) | Collision energy (ev) | Fragments (m/z) |
|---|---|---|---|---|---|---|
P1 | d1 | 515.3004 | C30H43O7− | 2.1 | 35.5 | 515.2991 (55.3), 497.2890 (100), 479.2748 (6.02), 453.2995 (18.98), 435.2873 (11.96), 383.2590 (2.83), 301.1809 (26.32), 299.1657 (56.72), 285.1500 (61.11) |
P2 | d1′ | 513.2858 | C30H41O7− | 3 | 35.4 | 495.2731 (100), 451.2843 (79.31), 301.1812 (88.82), 283.1705 (40.88), 247.1344 (38.65) |
P3 | d2 | 515.299 | C30H41O7− | 4.7 | 35.5 | 497.2886 (100), 453.3001 (79.21), 303.1964 (75.93), 287.2004 (17.93), 285.1861 (29.13), 249.1501 (58.46) |