CC(C)(C)c1ccc2c(c1)CNCCNCc1cc(C(C)(C)C)ccc1OCC1(CO2)COc2ccc(C(C)(C)C)cc2CNCCNCc2cc(C(C)(C)C)ccc2OC1
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?