(E)-(+-)-2,3,4,4a,5,6,7,11b-Octahydrobenzo(6,7)cyclohept(1,2-b)(1,4)oxazine 105107-48-0 Benzo(6,7)cyclohept(1,2-b)(1,4)oxazine, 2,3,4,4a,5,6,7,11b-octahydro-, (E)-(+-)-