105124-59-2 Benzo(6,7)cyclohept(1,2-b)-1,4-oxazine-4(4ah)-acetic acid, 2,3,5,6,7,11b-hexahydro-, trans- trans-2,3,5,6,7,11b-Hexahydrobenzo(6,7)cyclohept(1,2-b)-1,4-oxazine-4(4ah)-acetic acid