Structures of the TMS derivatives confirmed from GC-MS data, retention times, major mass (m/z) fragments and the corresponding silanol metabolites of D5 present in urine
| TMS Derivatives of The Metabolites & (GC-MS Retention Time, min) | Major GC-MS Mass Fragments (m/z) | Metabolites Present in Urine; HPLC Retention Time |
|---|---|---|
| MeSi(OSiMe3)3 (5.66) | 73, 207, 295 | MeSi(OH)3, 3.5 min |
| Me3SiO-(SiMe2O)2-SiMe3(5.86) | 73, 207, 295 | HO-(SiMe2O)2-H, 32.1 min |
| Me2Si(OSiMe3)2 (4.59) | 73, 133, 147, 205, 221 | Me2Si(OH)2, 14.9 min |
| MeSi(OSiMe3)2-O-Si(OSiMe3)Me2(8.22) | 73, 147, 281, 369 | MeSi(OH)2-O-Si(OH)Me2, 28.6 min |
| Me3SiO-(SiMe2O)3-SiMe3(8.36) | 73, 147, 281, 369 | HO-(SiMe2O)3-H2-150 |
| MeSi(OSiMe3)2-O-Si(OSiMe3)2 Me (9.37) | 75, 147, 221, 281, 355, 443 | MeSi(OH)2-O-Si(OH)2Me2-150 |
| Me2Si(OSiMe3)-O-Si(OSiMe3)3(10.31) | 75, 147, 221, 281, 355, 443 | Me2Si(OH)-O-Si(OH)3, 4.40 min |
| MeSi(OSiMe3)2-O-Si(OSiMe3)3(9.37) | 73, 147, 221, 341, 355, 427, 519 | MeSi(OH)2-O-Si(OH)3 |
| D4D′OSiMe3 (8.12) | 73, 147, 207, 295, 341, 429 | D4D′OH2-150 |
| D4D′CH2OSiMe3 (9.58) | 75, 147, 221, 281, 355, 443 | D4D′CH2OH2-150 |
↵2-150 Metabolite that was revealed by GC-MS but the presence not established in HPLC.