Cc1ccc(S(=O)(=O)NCC(=O)OCC(=O)N2N=C(c3ccc(Cl)cc3)CC2c2ccco2)cc1C
The donor in a hydrogen bond is usually a strongly electronegative atom such as N, O, or F that is covalently bonded to a hydrogen bond. How many hydrogen bond donors does the molecule have?