Table 2.
Characteristics of Products Formed by UV Irradiation of AcdAdo with Uric Acid
| Products | tR (min) | λmax (nm) | m/z (negative) | ε245 nm (M−1 cm−1)a |
|---|---|---|---|---|
| 7. Ade | 16.5 | 260 | 134 | 8450 |
| 8. Fapy-AcdAdo (fast) | 28.7 | 259 | 352 | 2860 |
| 9. Fapy-AcdAdo (slow) | 29.3 | 259 | 352 | 2860 |
| 10. 5′,8-cyclo-AcdAdo (fast) | 33.9 | 274 | 332 | 8930 |
| 11. 5′,8-cyclo-AcdAdo (slow) | 34.6 | 274 | 332 | 6910 |
| 12. 5′-deoxy-5′,8-cyclo -AcdAdo | 35.3 | 264 | 274 | 9560 |
| 13. 8-oxo-AcdAdo | 38.6 | 212, 269 | 350 | 10,220 |
aThe values of ε245 nm were calculated from the reported ε values for the products of dAdo at λmax and their UV spectra obtained in the present study [11]