4-​Piperidinecarboxamid​e, 1-​[8-​(2-​chlorophenyl)​-​9-​(4-​chlorophenyl)​-​9H-​purin-​6-​yl]​-​4-​(ethylamino)​-​, hydrochloride (1:1) [ 686347-12-6 ]