1-(6,7-Dihydro-5H-benzocyclohepten-7-yl)pyrrolidine (E)-2-butenedioate (2:1) 62819-73-2 Di-(7-pyrrolidin-1-yl) 6,7-dihydro-5H-benzocycloheptene fumarate [French] Pyrrolidine, 1-(6,7-dihydro-5H-benzocyclohepten-7-yl)-, (E)-2-butenedioate (2:1)