valganciclovir cytomegalovirus (cmv, hcmv) drug molecule

valganciclovir valgancyclovir inhibitor virus viral antiviral infection microorganism microbe hiv human immunodeficiency acquired syndrome aids cytomegalovirus cmv valine valyl ganciclovir prodrug hcmv carbon hydrogen oxygen nitrogen molecule atoms atomic model molecular compound composition chemical chemistry bond structure formula circle ring line drawing skeletal