CCCNC(=O)OC[C@@H]1O[C@H](CCO/N=C(\C)CCC(=O)OC[C@@H]2O[C@H](C#Cc3ccccc3)C=C[C@@H]2Oc2ccc(C)cc2)C=C[C@@H]1Oc1ccc(OC)cc1
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?