COc1ccc(-c2ccc3c(c2)O[C@H](CN(C)C(=O)Nc2ccccc2F)[C@@H](C)CN([C@H](C)CO)S3(=O)=O)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?