2-Dehydrosparteine 67528-17-0 7,14-Methano-2H,6H-dipyrido(1,2-a:1',2'-e)(1,5)diazocine, 1,3,4,7,7a,8,9,13,14,14a-decahydro-, (7S-(7alpha,7aalpha,14alpha,14abeta))-