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Scientia Pharmaceutica is published by MDPI from Volume 84 Issue 3 (2016). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on as a courtesy and upon agreement with Austrian Pharmaceutical Society (Österreichische Pharmazeutische Gesellschaft, ÖPhG).
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Sci. Pharm. 2013, 81(2), 329-338; (registering DOI)

7-Aza-des-A-steroids with Antimicrobial and Cytotoxic Activity

Department of Pharmacy – Center for Drug Research, Ludwig-Maximilians University, Butenandtstr. 5–13, 81377 Munich, Germany
Author to whom correspondence should be addressed.
Received: 2 March 2013 / Accepted: 14 April 2013 / Published: 14 April 2013
PDF [138 KB, uploaded 27 September 2016]


This paper describes a convenient approach to the 7-aza-des-A-steroid (6,6a,7,8,9,9a-hexahydro-5H-cyclopenta[h]quinoline) scaffold starting from Grundmann's ketone using two different pyridine annulation protocols. The biological evaluation of the pyridine and pyridinium products revealed that these compounds unexpectedly do not interfere with ergosterol and cholesterol biosynthesis. The pyridinium compound 6 showed significant antimicrobial and cytotoxic activities which are most likely due to its detergent-like structure.
Keywords: Azasteroids; Pyridine; Annulation; Antimicrobial activity; Cytotoxic activity Azasteroids; Pyridine; Annulation; Antimicrobial activity; Cytotoxic activity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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KROJER, M.; KELLER, M.; BRACHER, F. 7-Aza-des-A-steroids with Antimicrobial and Cytotoxic Activity. Sci. Pharm. 2013, 81, 329-338.

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