Based on the fact that both SAVI and the REAL databases use Enamine BBs, it is of interest to know the overlap between those very large databases. We see that on the order of 10% of either database is also present in the other. This is reassuring both in the sense that reasonable chemistry is being created by MN-16 SAVI and that each of these Enamine-BB-based databases provides its own richness of unique structures.