5-(2-Methoxyphenyl)-6,8-dioxa-3-azabicyclo(3.2.1)octane (Z)-2-butenedioate (1:1) 6,8-Dioxa-3-azabicyclo(3.2.1)octane, 5-(2-methoxyphenyl)-, (Z)-2-butenedioate (1:1) 84509-05-7