. 2011 Apr 18;7:442–495. doi: 10.3762/bjoc.7.57
Copyright © 2011, Baumann et al.
This is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The license is subject to the Beilstein Journal of Organic Chemistry terms and conditions: (https://www.beilstein-journals.org/bjoc/terms)
Figure 16.
The abundance of heterocycles within top 200 drugs (5-membered rings).