CPM count per minute, HPLC high-performance liquid chromatography Table 2 Vorinostat datasheet Concentrations of circulating
setipiprant metabolites in plasma (acidified) Metabolite ID RTRD (min) C eq (MWparent) of metabolite 80 min 160 min 200 min 240 min 7 h Unknown 2.6 ND ND ND ND ND M9 (m/z 437) 26.2 ND BLQ BLQ BLQ ND M7 (m/z 437) 27.8 ND 477 457 379 BLQ J (m/z 579) 35.9 BLQ BLQ BLQ BLQ BLQ V (m/z 419) 36.5 ND BLQ BLQ BLQ ND D (m/z 579) 36.7 Setipiprant (m/z 403) 42.4 7,520 14,200 11,100 10,200 1,780 BLQ below limit of quantification, ND not detected, RD radio detection, RT retention time Concentrations (C eq [ng equivalents/mL]) are corrected for dilution and molecular weight of the respective analyte Table 3 Radioactivity associated to setipiprant and each of its metabolites Small molecule library chemical structure expressed as percentage of the administered dose
excreted in feces Metabolite ID RTRD (min) % of administered dose excreted in feces 0–24 h 24–48 h 48–72 h 72–96 h 96–120 h Unknown 2.6 0.65 ND ND ND ND L 17.5 ND ND ND ND ND M (m/z 540) 20.3 ND ND ND ND ND E (m/z 540) 22.1 ND ND ND ND ND P 23.9 ND ND ND ND ND M9 (m/z 437) 26.2 0.78 2.92 selleck chemicals NADPH-cytochrome-c2 reductase 2.76 1.30 0.48 M7
(m/z 437) 27.8 1.70 5.25 5.22 2.24 0.85 Q 29.9 ND ND ND ND ND R 33.1 ND ND ND ND ND C (m/z 579) 34.0 ND ND ND ND ND W1 (m/z 419) 34.6 0.09 0.26 0.27 0.15 0.10 W2 (m/z 419) 35.0 W3 (m/z 419) 35.5 0.08 0.16 0.22 0.10 BLQ I (m/z 579) 35.2 ND ND ND ND ND J (m/z 579) 35.9 ND ND ND ND ND T (m/z 449) 36.1 0.10 0.54 0.40 0.19 0.14 V (m/z 419) 36.5 0.10 0.29 0.31 0.14 BLQ D (m/z 579) 36.7 ND ND ND ND ND U (m/z 449; m/z 419) 37.0 0.08 0.27 0.23 0.09 BLQ X 37.4 0.05 ND ND ND ND Z (m/z 579) 37.7 ND ND ND ND ND K (m/z 449; m/z 419) 38.3 0.11 0.43 0.34 0.16 BLQ Y 40.3 ND 0.08 ND ND ND Setipiprant (m/z 403) 42.4 13.73 17.57 9.98 7.04 1.72 G 58.3 BLQ 0.13 0.09 BLQ ND H 59.5 0.16 0.22 0.16 0.12 ND BLQ below limit of quantification, ND not detected, RD radio detection, RT retention time Table 4 Radioactivity associated to setipiprant and each of its metabolites excreted in urine expressed as percentage of the administered dose for the respective urine collection intervals Metabolite ID RTRD (min) % of administered dose excreted in urine 0–8 h 8–16 h 16–24 h 24–48 h 48–72 h Unknown 2.6 0.10 ND ND ND ND L 17.5 0.09 ND ND ND ND M (m/z 540) 20.3 0.06 0.02 BLQ ND ND E (m/z 540) 21.2 0.12 0.03 BLQ ND ND P 23.9 0.10 BLQ ND ND ND M9 (m/z 437) 26.2 0.84 0.14 0.06 BLQ ND M7 (m/z 437) 27.8 3.29 0.81 0.26 0.33 0.09 Q 29.9 0.05 ND ND ND ND R 33.1 0.23 0.04 BLQ ND ND C (m/z 579) 34.0 0.