NC(=O)C1CCN(c2c([N+](=O)[O-])cc(C(F)(F)F)cc2[N+](=O)[O-])CC1
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?