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Table 5 Cytotoxicity activity of spiro-indoline derivatives 3ac and 5al at different concentrations (0.0, 5.0, 12.5, 25 and 50 µg/mL) of some synthesized compounds and reference drug against human cancer cells line MCF7 breast cancer

From: Ammonium chloride catalyzed synthesis of novel Schiff bases from spiro[indoline-3,4′-pyran]-3′-carbonitriles and evaluation of their antimicrobial and anti-breast cancer activities

CONC

DOX

3a

5a

5b

5c

5d

3b

5e

5f

5g

5h

3c

5i

5j

5k

5l

0.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

5.0

0.361

0.836

0.758

0.867

0.930

0.977

0.786

0.911

0.764

0.853

0.978

0.799

0.974

0.688

0.824

0.906

12.5

0.385

0.738

0.479

0.633

0.837

0.740

0.542

0.876

0.643

0.728

0.669

0.642

0.752

0.637

0.588

0.803

25.0

0.332

0.653

0.340

0.498

0.698

0.619

0.462

0.467

0.547

0.560

0.628

0.437

0.829

0.498

0.414

0.725

50.0

0.299

0.631

0.353

0.502

0.442

0.619

0.444

0.416

0.608

0.453

0.564

0.526

0.772

0.479

0.368

0.829

SD

0.024

0.009

0.013

0.025

0.020

0.016

0.034

0.039

0.120

0.022

0.020

0.025

0.010

0.013

0.058

0.009