Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 71, Issue 3, Pages 206-212Publisher
PHARMACEUTICAL SOC JAPAN
Keywords
histone deacetylase (HDAC) inhibitor; indole; antitumor; synthesis; selectivity
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A series of aroylpiperazine hybrid derivatives were synthesized and tested for their activity against HDAC1. Indole-piperazine hybrids 6a (IC50 = 205 nM) and 6b (IC50 = 280 nM) exhibited submicromolar activity against HDAC1. Specifically, 6a showed strong affinity towards class I HDACs, particularly HDAC1-3. In vitro, 6a showed better antiproliferative activity against K562 and HCT116 cell lines compared to chidamide.
Histone deacetylases (HDACs) are important targets in cancer treatment, and the development of selective and broad-spectrum HDACs inhibitors (HDACis) is urgent. In this research, a series of aroylpiperazine hybrid derivatives were designed and synthesized. Among these, indole-piperazine hybrids 6a (IC50 = 205 nM) and 6b (IC50 = 280 nM) showed submicromolar activity against HDAC1. Moreover, 6a showed a preferable affinity toward class I HDACs, especially for HDAC1-3. In vitro, 6a exhibited better antiproliferative activities against K562 and HCT116 cell lines than chidamide.
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