The possibilities for production of yet unknown neutron-rich isotopes Md261-265 are explored in the multinucleon transfer reactions with stable beams bombarding on Cf and Es targets. The production of a given isotope of neutron-rich Md is optimized by appropriate choices of projectile-target combinations and bombarding energies. The production cross sections of neutron-rich Md isotopes in the 0n and 1n evaporation channels of multinucleon transfer reactions are compared. The prospects for the use of radioactive beams in the production of new Md isotopes are discussed.