SEARCH Articles Figures Tables 1.2- Dimethoxy-6-phenyl-naphthalene 2,2-Dimethoxy-2-phenyl acetophenone 2,2-Dimethoxy-2-phenyl acetophenone DMPA) 2-Isopropyl-3,6-dimethoxy-5 -phenyl-2,5 dihydropyrazine 5.7- Dimethoxy-3-phenyl-2 -quinoxalinone 8-Amino-5,7-dimethoxy-3-phenyl-2 quinoxalinone Acetic acid, 3,4-dimethoxy-phenyl Cinnamic acid, 2,3-dimethoxy a-PHENYL