CC1CNC(c2ccc(CN3CCC(CCCC4CCN(Cc5ccc(C6=NC(C)CN6)cc5)CC4)CC3)cc2)=N1.Cl
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?