COc1ccc(O[C@H]2C=C[C@@H](c3ccccc3)O[C@@H]2CO/N=C(\C)CCN2CCCCc3nc(C)c(C)cc32)cc1
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?