Molecular docking of triazoles 13–35 to the aromatase enzyme
was performed to investigate their binding modes. The most
potent compound 34 (Fig. 3) was able to form hydrogen bonds
with Met374 and Ser478 using the sulfonyl oxygen (bond distance
= 2.3 Å) and the oxycoumarinyl group (bond distance
= 2.0 Å), respectively. The 2D ligand–protein interaction
map of the co-crystallized ligand ASD (Fig. S1) displayed
hydrophobic interaction involving steroidal backbone with amino
acids residues (i.e., Ile133, Phe134, Trp224 and Leu477), and
hydrogen bonding of the CO group at position 17 with the amino
group of Met374