4E.I.DU PONT DE NEMOURS,COMPANY. Method for preparation of optionally 2-substitude 1,6-dihydro-6-oxo-4-pyrimidine carboxylic acids[P].WO,2006/121648,2006.
5WILLY T RUEEGG,SYNGENTA PARTICIPATIONS AG. Herbicidal composition[P].WO,2003047342,2003.
3KAGABU S, IMAI R. Effects of halogen introduction at the C5 position of the imidacloprid pyriding riagupon insecticedal activityl[J] J.Pestic.Sci,, 2005, 30:409 - 413.
4OHNO L,NARUSE Y, CASIDA J.E. Molecular features of neonicotinoid pharmacophore variants interacting with the insect nicotinic receptor[J]. Chem.Rws Toxical., 2009, 22:476 - 482.
5MAIENFISCH E Heterocyclic COlrepound as pesticide: WO,9912906[P]. 1999-03-18.
