1,3-Dioxolane-4-methanamine, 2-(2-benzofuranyl)-N-butyl-2-(4-chlorophenyl)-, (Z)-2-butenedioate (1:1) 2-(2'-Benzofuranil)-4-n-butilaminomethyl-2-(p-chlorophenyl)-1,3-dioxolan maleate ITA 362 maleate JH8280000