N,N,N-Trimethyl-1-adamantammonium hydroxide53075-09-5100 % similar Di-1-adamantylphosphine131211-27-331 % similar 1-Bromoadamantane768-90-131 % similar Amantadine768-94-531 % similar 1-Chloroadamantane935-56-831 % similar Rimantadine13392-28-430 % similar