C[C@H]1CC(=O)[C@@]2(O)C#C/C=C\C#C[C@@H]3Nc4c(cc(O)c5c4C(=O)c4ccccc4C5=O)[C@]24O[C@@]134
In analogy to the rule of five, it has been proposed that ideal fragments should follow the rule of three, in which the molecular weight of a fragment is <300, the c LogP is ≤3, the number of hydrogen bond donors is ≤3 and the number of hydrogen bond acceptors is ≤3. The molecule meets rule of three or not?