7-d	7-Day incubation
14-d/21-d	14-/21-Day incubation
ϕM	Volume fraction of a mobile phase modifier (RP-HPLC)
CPX	Ciprofloxacin
Adj. R2	Adjusted coefficient of determination (statistical analysis)
DMSO	Dimethyl sulfoxide
EMB	Ethambutol
F	Fisher´s F-test (Fisher´s significance ratio; statistical analysis)
INH	Isoniazid
k	Capacity (retention) factor (RP-HPLC)
log kw	Lipophilicity index; values extrapolated from intercepts of a linear relationship between the logarithm of retention factor k (log k) and volume fraction of a mobile phase modifier (ϕM; RP-HPLC)
MDR	Multi-drug resistant
MeOH	Methanol
MA	Mycobacterium avium
MIC	Minimum inhibitory concentration (in the μΜ units)
MK	Mycobacterium kansasii
Mp/mp	Melting point
MT	Mycobacterium tuberculosis
NoR	Norm of residuals (statistical analysis)
OFLX	Ofloxacin
Prob > F	Probability of obtaining the F Ratio (statistical analysis)
PZA	Pyrazinamide
RM	Lipophilicity index (RP-TLC)
RMSE	Root mean squared error (statistical analysis)
RSS	Residual sum of squares (statistical analysis)
S	Slope (RP-HPLC)
SAR	Structure–activity relationship(s)
tr	Retention time of a compound (RP-HPLC)