[3-({4-[3-({4-[3-(tert-Butoxycarbonylamino-methyl)-benzylamino]-6-chloro-[1,3,5]triazin-2-ylamino}-methyl)-benzylamino]-6-pentylamino-[1,3,5]triazin-2-ylamino}-methyl)-benzyl]-carbamic acid benzyl ester