Cc1cc(C(=O)COC(=O)C23CC4CC(CC(O)(C4)C2)C3)c(C)n1-c1c(C)n(C)n(-c2ccccc2)c1=O
Hydrogen bond acceptor is the chemical compound which contains the lone electron pairs that participate in the hydrogen bond formation. How many hydrogen bond acceptors does the molecule contain?