Table 1.
Entry | Compounds | ||||
---|---|---|---|---|---|
A | B | C | D | E | |
Properties/Lipophilicity/Drug-likeness | |||||
Molecular weight (g × mol−1) | 282.33 | 266.33 | 218.33 | 266.33 | 284.35 |
Num. heavy atoms | 20 | 19 | 16 | 19 | 20 |
Num. arom. heavy atoms | 0 | 0 | 0 | 0 | 0 |
Fraction Csp3 | 0.93 | 0.87 | 0.67 | 0.93 | 1.00 |
Num. rotatable bonds | 0 | 0 | 2 | 0 | 0 |
Num. H-bond acceptors | 5 | 4 | 1 | 4 | 5 |
Num. H-bond donors | 0 | 0 | 0 | 0 | 1 |
Molar Refractivity | 70.38 | 69.71 | 69.24 | 69.29 | 71.34 |
TPSA (Ų) | 53.99 | 36.92 | 17.07 | 44.76 | 57.15 |
Consensus Log Po/w | 2.49 | 2.72 | 3.44 | 2.58 | 2.25 |
Lipinski’s Rule. | Yes | Yes | Yes | Yes | Yes |
Bioavailability Score | 0.55 | 0.55 | 0.55 | 0.55 | 0.55 |
PAINS | 0 alert | 0 alert | 0 alert | 0 alert | 0 alert |
Pharmacokinetics | |||||
GI absorption | High | High | High | High | High |
BBB permeant | Yes | Yes | Yes | Yes | Yes |
P-gp substrate | No | No | No | No | No |
CYP1A2 inhibitor | Yes | Yes | No | Yes | Yes |
CYP2C19 inhibitor | No | No | Yes | No | No |
CYP2C9 inhibitor | No | No | Yes | No | No |
CYP2D6 inhibitor | No | No | No | No | No |
CYP3A4 inhibitor | No | No | No | No | No |
Log Kp (cm/s) | −5.96 | −6.05 | −5.01 | −5.90 | −5.91 |
A: artemisinin, B: acetate of dihydroartemisinin, C: artemisinic aldehyde, D: deoxyartemisinin, and E: dihydroartemisinin.