Table 1 1H-NMR chemical shifts of host (H) and guest (G) protons in free and complexed forms in D2O (5% NaOD in D2O for CIPRO and NOR) at 298 K.

From: Enhancing antibacterial efficacy through macrocyclic host complexation of fluoroquinolone antibiotics for overcoming resistance

Host-guest mixture

Proton

δfree G or H (ppm)

δH-G (ppm)

Δδ (ppm)

SRsC1-LEVO

H8LEVO

8.382

8.424

0.042

H2LEVO

2.936

2.101

-0.835

H4LEVO

3.555

3.34

-0.215

HbSRsC1

6.662

7.113

0.451

HdSRsC1

4.533

4.607

0.074

β-CD-LEVO

H2LEVO

2.85

2.84

-0.01

H7β-CD

7.403

7.464

0.061

SRsC1-CIPRO

H5CIPRO

7.526

7.564

0.038

H6CIPRO

7.783

7.819

0.036

HbSRsC1

6.571

7.216

0.645

SRsC1-NOR

H5NOR

6.97

7.052

0.082

H7NOR

8.348

8.386

0.038

HdSRsC1

4.203

4.103

-0.100

 

HbSRsC1

6.573

7.19

0.617