Skeletal formula of <a href="https://en.wikipedia.org/wiki/anthramycin" class="extiw" title="w:anthramycin">anthramycin</a>—a <a href="https://en.wikipedia.org/wiki/pyrrolobenzodiazepine" class="extiw" title="w:pyrrolobenzodiazepine">pyrrolobenzodiazepine</a> <a href="https://en.wikipedia.org/wiki/antibiotic" class="extiw" title="w:antibiotic">antibiotic</a> and <a href="https://en.wikipedia.org/wiki/antineoplastic" class="extiw" title="w:antineoplastic">antineoplastic</a>. Created with <a rel="nofollow" class="external text" href="http://www.chemdoodle.com">ChemDoodle 8.0.0.b2</a> and <a rel="nofollow" class="external text" href="http://www.adobe.com/products/illustrator.html">Adobe Illustrator CC 2015</a>.
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Own work  using: <a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/5311005">PubChem</a>