对二氟甲氧基乙酰苯胺的制备新工艺

对二氟甲氧基乙酰苯胺(1)是一种重要的药物中间体,可用于多种医药、农药等的合成,如用于新型胃药及除虫菊类杀虫剂的合成,尤其进入80年代以来,许多专利报道其用于新药合成[1～6].     

具有小受迫项的哈密顿系统的同宿轨道

By Brezis-Nirenberg type Mountain Pass Theorem, the research has focused on the existence of nontrivial homoclinic orbits for a class of second order Hamiltonian systems with non-Ambrosetti-Rabinowitz type superquadratic potentials and small forced terms.