Bioorganic Chemistry (2020)
Update date:2022-08-25
Topics:
Chang, Chiao-Nien
Chen, Mei-Jou
Chiu, Pei-Fang
Hng, Yue
Liang, Pi-Hui
Lin, I-Chun
Lin, Mei-Hsiang
Lin, Tzung-Sheng
Liu, I-Chen
Lu, Yeh-Lin
Tsai, Keng-Chang
Steroid sulfatase (STS) is a sulfatase enzyme that catalyzes the conversion of sulfated steroid precursors to free steroid. The inhibition of STS could abate estrogenic steroids that stimulate the proliferation and development of breast cancer, and therefore STS is a potential target for adjuvant endocrine therapy. In this study, a series of 3-benzylaminocoumarin-7-O-sulfamate derivatives targeting STS were designed and synthesized. Structure-relationship activities (SAR) analysis revealed that attachment of a benzylamino group at the 3-position of coumarin improved inhibitory activity. Compound 3j was found to have the highest inhibition activity against human placenta isolated STS (IC50 0.13 μM) and MCF-7 cell lines (IC50 1.35 μM). Kinetic studies found compound 3j to be an irreversible inhibitor of STS, with KI and kinact value of 86.9 nM and 158.7 min?1, respectively.
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