2-[bis(2-hydroxypropanyl)amino]-3,5-dinitro-N-[2-(tetrahydro-2H-pyran-2-yloxy)ethyl]benzamide   、                                                                                      
甲基磺酰氯                                                                                                                                                                                                                                                                                                          以above gave 1-methyl-2-[{2-[(methylsulfonyl)oxy]propyl}-2,4-dinitro-6-({[2-(tetrahydro-2H-pyran-2-yloxy)ethyl]amino}carbonyl)anilino]ethyl methanesulfonate (19) (2.52 g, 100%)的产率得到1-methyl-2-[{2-[(methylsulfonyl)oxy]propyl}-2,4-dinitro-6-({[2-(tetrahydro-2H-pyran-2-yloxy)ethyl]amino}carbonyl)anilino]ethyl methanesulfonate