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

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HN<br />

N<br />

O O<br />

R R<br />

NH<br />

O O N<br />

N<br />

HN<br />

R<br />

O<br />

O<br />

O<br />

R<br />

O<br />

N<br />

NH<br />

(3R,4R,16R,17R)-7<br />

Figure 21. 1 H-NMR spectrum for macrocycle (7), DMSO-d 6 , 400 MHz.<br />

Intens.<br />

7<br />

x10<br />

1.5<br />

599.1<br />

1.0<br />

0.5<br />

577.1<br />

0.0<br />

200 400 600 800 1000 1200 1400 m/z<br />

Figure 22. ESI-MS spectrum for macrocycle (7) from DMF and ACN (Positive mode).<br />

Intens.<br />

5<br />

x10<br />

4<br />

3<br />

2<br />

484.0 499.1<br />

512.0<br />

570.1<br />

600.1<br />

1<br />

0<br />

284.9 297.9<br />

312.9 328.0<br />

340.0<br />

354.0<br />

367.0 384.0 396.0 416.0 428.0<br />

441.0 456.1<br />

470.1<br />

526.1 537.0 554.1<br />

577.1<br />

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

Figure 23. Tandem ESI-MS 2 spectrum for macrocycle (7) from DMF and ACN (Positive mode).<br />

S14

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