Table:
Cell Viability
Compound	Dose	Human Non-small Cell Lung Cancer	Normal Diploid Fibroblasts
XVI. (THR53)	Cyc-[FPPRGPRPVKLALKLALK]	200 μM	_ _ _	+ + +
XVII. (THR53C)	Cyc-[FPPRRPGPVKLALKLALK]	200 μM	+ + +	+ + +
XVIII. (THR54)	Cyc-[PRGPRPVALKLALKLAL]	100 μM	_ _ _	+ + +
XIX. (THR79)	Cyc-[PRGPRPvalklalklal]	50 μM	_ _ _	+ + +
XX.	Cyc-[PR(Me)GPRPVALKLALKLAL]	200 μM	+ +/-	N/D
XXI.	Cyc-[PRGPR(Me)PVALKLALKLAL]	200 μM	++ +	N/D
XII.	Cyc-[PR(Me)GPR(Me)PVALKLALKLAL]	200 μM	+ + +	N/D

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| Compound | Dose | Human Non-small Cell Lung Cancer | Normal Diploid Fibroblasts | 
 | XVI. (THR53) | Cyc-[FPPRGPRPVKLALKLALK] | 200 μM | _ _ _ | + + + | 
 | XVII. (THR53C) | Cyc-[FPPRRPGPVKLALKLALK] | 200 μM | + + + | + + + | 
 | XVIII. (THR54) | Cyc-[PRGPRPVALKLALKLAL] | 100 μM | _ _ _ | + + + | 
 | XIX. (THR79) | Cyc-[PRGPRPvalklalklal] | 50 μM | _ _ _ | + + + | 
 | XX. | Cyc-[PR(Me)GPRPVALKLALKLAL] | 200 μM | + +/- | N/D | 
 | XXI. | Cyc-[PRGPR(Me)PVALKLALKLAL] | 200 μM | ++ + | N/D | 
 | XII. | Cyc-[PR(Me)GPR(Me)PVALKLALKLAL] | 200 μM | + + + | N/D |