This Invention relates to forms of methyl {4,6-diamino-2 - [1 - (2-fluorobenzyl) - 1H pyrazolo [3,4-b] piridino - il - 3 - 5 - il}] pirimidino methylcarbamate comprising modification modification I., II., solvate mono DMSO. Sesqui solvate - DMSO and solvate 1 \/ 4 - ethyl acetateEsta presente invencion se refiere a las formas del metil {4,6-diamino-2-[1-(2-fluorobencil)-1H-pirazolo[3,4-b]piridino-3-il]pirimidino-5-il}metilcarbamato que comprende su modificacion I., modificacion II., solvato de mono-DMSO. solvato de sesqui-DMSO y solvato de 1/4-acetato de etilo