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. Author manuscript; available in PMC: 2010 Jan 15.
Published in final edited form as: J Chem Inf Model. 2008 Jul 8;48(7):1311–1324. doi: 10.1021/ci700342h

Figure 2.

Figure 2

Figure 2

Figure 2 a. All 1–3-ring scaffold topologies and all 4-ring topologies possessing only 3-nodes or only 4-nodes. See Table 2 for further identification

Figure 2 b. Examples21 from the databases examined of molecules that exhibit each 1–3-ring topology and each 4-ring topology possessing only 3-nodes or 4-nodes, corresponding to the topologies in Figure 2. Note that none of the databases examined possessed an example of topology number 17. See Table 2 for further identification.