(R)-(+)-1-Chloro-2-N-(theophyllinyl-7'-ethyl)-2-N-methylaminobutane hydrochloride 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-7-(2-((1-(chloromethyl)propyl)methylamino)ethyl)-, monohydrochloride, (R)-(+)- UO8422200