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. 2025 Jun 4;5(4):553–564. doi: 10.1021/acsbiomedchemau.4c00130

4. Synergistic Activity of Metformin Combined with BQACs.

Compound IC50 (μM) IC50 of metformin in combination (MET/BQAC 50:1) (μM) Combination index
Metformin 987± 10    
8a 2.2 59 ± 9 0.59
9a 5.0 106 ± 5 0.53
11a 2.0 40 ± 5 0.44
26 6.6 105 ± 10 0.43
31 1.8 32 ± 5 0.39