[en] The role of the 2 → 3 QCD subprocess qg → Q anti Qq (where Q - heavy quark) is considered in the reactions of chadronic charmed particle production. The total cross section of charmed quark production in pp collisions and c anti c inclusive spectrum from the 2 → 3 subprocess gq → c anti cq are presented. At the energies E > 200 GeV the third order contribution is larger than the contribution from 2 → 2 subprocesses. The heavy quark spectrum calculated in the third order decreases with the growth of Feynman variable x essentially slower than the second order spectrum