Identification of [14C]razaxaban metabolites in rats and dogs
Metabolite | HPLC Time | [M + H]+ and Fragment Ions | Accurate Mass and Molecular Formula | Identity |
|---|---|---|---|---|
| min | m/z | |||
| Parent | 48.3 | 529; 484, 467, 457 | Not determined | Razaxaban |
| M1 | 28.5 | 531; 486, 469, 457 | 531.1896 | Dihydrorazaxaban |
| +0.0016 | ||||
| C24H23N8O2F4 | ||||
| M2 | 16 | 707; 531 | 707.2181 | Dihydrorazaxaban glucuronide |
| -0.0020 | ||||
| C30H31N8O8F4 | ||||
| M3 | 24.8 | 705; 529 | 705.2040 | Razaxaban glucuronide |
| -0.004 | ||||
| C30H29N8O8F4 | ||||
| M4 | 41 | 515; 484, 472, 467, 457 | 515.1572 | N-Demethyl razaxaban |
| +0.005 | ||||
| C23H19N8O2F4 | ||||
| M5 | 23.5 | 517; 486 | Not determined | N-Demethyl dihydrorazaxaban |
| M7 | 39 | 502; 484, 467, 457, 295, 253, 190 | 502.1280 | Deaminated razaxaban |
| +0.0029 | ||||
| C22H16N7O3F4 | ||||
| M10 | 26 | 545; 484, 467, 457 | 545.1671 | Razaxaban N-oxide |
| -0.002 | ||||
| C24H21N8O3F4 | ||||
| M11 | 18.8 | 721; 676, 545, 500, 312 | 721.1988 | Razaxaban N-oxide glucuronide |
| -0.006 | ||||
| C30H29N8O9F4 | ||||
| M12 | 21.8 | 504; 486, 475, 469, 457 | 504.1416 | Deaminated dihydrorazaxaban |
| +0.009 | ||||
| C22H18N7O3F4 | ||||
| M13 | 12.3 | 547; 502, 486, 469, 325 | 547.1834 | Dihydrorazaxaban N-oxide |
| +0.005 | ||||
| C24H23N8O3F4 | ||||
| M14 | 9.5 | 723; 663, 547, 502, 486 | 723.2148 | Dihydrorazaxaban N-oxide glucuronide |
| -0.0002 | ||||
| C30H31N8O9F4 | ||||
| M15 | 37.8 | 503; 431, 433 | 503.1581 | N,N-des-dimethyl dihydrorazaxaban |
| -0.0016 | ||||
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| C22H19N8O2F4 |
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