2-((3aS,4R,6S,6aR)-4-(7-chloro-5-(propylthio)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-3-yl)tetrahydro-3aH-spiro[cyclopenta[d][1,3]dioxole-2,1'-cyclopentane]-6-yloxy)ethanol