Table 2.
LC-HRMS/MS data of piperamides tentatively identified the methanolic fruit extracts obtained from different spices of genus Piper.
| No. | Compound | UV [nm] |
HRMS (+) [m/z] |
MF | HRMS/MS (+) [m/z] |
|---|---|---|---|---|---|
| 1 | Piperolactam C | 220; 340 | 310.1075 | C18H15NO4 | 193.0750; 120.0395 |
| 2 | Piperlongumine | 230; 330 | 318.1360 | C17H19NO5 | 269.0957; 221.0805; 201.0527 |
| 3 | Piperyline | 255; 310; 342 | 272.1291 | C16H17NO3 | 201.0555; 173.0572; 143.0503; 135.0405; 115.0571 |
| 4 | Piperlonguminine | 230; 340 | 274.1452 | C16H19NO3 | 161.0576; 135.0452 |
| 5 | Piperine | 240; 310; 341 | 286.1443 | C17H19NO3 | 201.0542; 173.0525; 135.0455; 112.0733 |
| 6 | Piperettines | 310; 345 | 312.1605 | C19H21NO3 | 227.0679; 199.0776; 169.0555; 141.085; 131.0405 |
| 7 | Piperolein A | 260; 340 | 316.1904 | C19H25NO3 | 231.1056; 161.0538; 135.0512 |
| 8 | Pellitorine | 210; 260 | 224.2015 | C14H25NO | 168.1414; 151.1170; 123.1196; 109.0603 |
| 9 | Pipercallosine | 210; 265; 310 | 330.2049 | C20H27NO3 | 259.1312; 241.1301; 208.1725; 135.0490 |
| 10 | Dehydropipernonaline | 210; 265 | 340.1919 | C21H25NO3 | 227.1001; 161.0554; 131.0414 |
| 11 | Pipernonaline | 215; 260; 305 | 342.2065 | C21H27NO3 | 229.1564; 199.0916; 161.0593; 135.0471 |
| 12 | Neopeollitorine B | 210; 265 | 236.2001 | C15H25NO | 151.1140; 109.0625 |
| 13 | Retrofractamide B | 210; 260 | 356.2203 | C22H29NO3 | 283.1309; 255.1371; 234.1822; 215.1868; 135.0433 |
| 14 | Piperolein B | 210; 265; 305 | 344.2205 | C21H29NO3 | 259.1299; 222.1829; 135.0395 |
| 15 | Piperundecalidine | 215; 270 | 368.2223 | C23H29NO3 | 246.1807; 215.1046; 173.0559; 135.0411 |
| 16 | Guineensine | 215; 260; 315 | 384.2586 | C24H33NO3 | 311.1985; 283.2033; 161.0754; 135.0577 |
| 17 | N-Isobutyl-2,4,12-octadecatrienamide | 220; 260 | 334.3099 | C22H39NO | 261.2253; 233.2201 |
HRMS, high-resolution mass spectra; MF, molecular formula; TR retention time; UV, ultraviolet.