Compound Rat iv TotalĀ  Clearancea,b (ml/min/kg) Oral Bioavailabilitya,c F% T1/2a,d (hrs) Vdssa (L/kg)
1 8.7 n/d 1.5 1.1
2 49 35 0.45 1.86
3 24 100 2.2 4.63
aValues are means of 2 rats,
bFrom 1mg/kg i.v. dose
cFrom 10mg/kg oral dose
dFrom i.v. PK studies
Table 4: In vivo rat pharmacokinetic properties of compounds 1, 2 and 3.