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• 4Y87: crystal structure of phosphodiesterase 9 in complex with (r)-c33 (6- {[(1r)-1-(4-chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4h- pyrazolo[3,4-d]pyrimidin-4-one) (10.1124/MOL.115.099747 )
• 4Y86: crystal structure of pde9 in complex with racemic inhibitor c33 (10.1124/MOL.115.099747 )