Results showed that sulfonamide substituents as open-chain
(type I) and restricted-THIQ analogs on the phenyl ring (types II
and III); and R2 substituents as phenyl, phenoxymethyl, naphthalene
oxymethyl and coumarin oxymethyl on the triazole core
play crucial roles in governing their anti-aromatase activities.
Obviously, most of the triazoles in types I and III displayed aromatase
inhibition activity (IC50 = 0.2–9.4 lM) whereas the triazoles
in type II were shown to be inactive (IC50 >12.5 lM).
Structure–activity relationship (SAR) studies of the tested compounds
are discussed hereafter