COC(=O)C/C=C\[C@@H](C)[C@@H](/C=N\O[C@@H](C)c1cn([C@H](CO)Cc2ccccc2)nn1)NS(=O)(=O)c1ccc(C)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?