CCC[C@@H](CN1CCC[C@H]1CN1C(N)=NC[C@@H]1Cc1ccccc1)N1C[C@@H](Cc2ccccc2)N(CCCC2CCCC2)C1=N
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?