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The Development of Novel Antibiotics Using ... - Jacobs University

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Intens.<br />

–MS<br />

6<br />

x10<br />

O<br />

O<br />

350.9<br />

1.5<br />

1.0<br />

HN<br />

NH<br />

HN O O NH<br />

O<br />

HN<br />

C 14 H 19 N 6 O 5<br />

351<br />

0.5<br />

188.7<br />

N<br />

513.0<br />

0.0<br />

150 200 250 300 350 400 450 500 550 600 m/z<br />

Figure 20. Tandem ESI-MS for receptor 13.<br />

Intens.<br />

5<br />

x10<br />

1.25<br />

+MS<br />

999.3534<br />

1.00<br />

0.75<br />

0.50<br />

511.1675<br />

1487.5706<br />

0.25<br />

0.00<br />

627.2524<br />

803.5632<br />

901.4579<br />

1732.1902 1976.8141<br />

400 600 800 1000 1200 1400 1600 1800 m/z<br />

Figure 21. ESI-TOF/MS for receptor self-assembled receptor 7.<br />

Intens.<br />

5<br />

x10<br />

2.0<br />

+MS<br />

361.9<br />

1.5<br />

1.0<br />

512.0<br />

212.8<br />

0.5<br />

238.7<br />

387.9<br />

264.8<br />

0.0<br />

200 250 300 350 400 450 500 m/z<br />

Figure 22. Tandem ESI-MS for receptor 7(MS 2 for m/z 511).<br />

13 | S

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