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

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Intens.<br />

5<br />

x10<br />

5<br />

–MS<br />

487.1588<br />

4<br />

3<br />

2<br />

1<br />

0<br />

338.0991<br />

523.1323<br />

300 400 500 600 700 800 900 m/z<br />

Figure 8. ESI-TOF/MS for receptor 7.<br />

Intens.<br />

5<br />

x10<br />

6<br />

–MS<br />

487.1581<br />

4<br />

2<br />

523.1316<br />

603.2336<br />

0<br />

300 400 500 600 700 800 900 m/z<br />

Figure 9. ESI-TOF/MS for receptor 11.<br />

Intens.<br />

5<br />

x10<br />

4<br />

3<br />

2<br />

1<br />

–MS<br />

O<br />

O<br />

HN<br />

NH<br />

HN O O NH<br />

O<br />

HN<br />

C 13 H 16 N 5 O 6<br />

338<br />

O<br />

337.9<br />

487.0<br />

0<br />

158.7 188.7<br />

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

475.0<br />

Figure 10. Tandem ESI-MS for receptor 11.<br />

9 | S

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