1 327 (3s,5e)-3-propyl-3,4-dihydrothieno[2,3-f][1,4]oxazepin-5(2h)-imine 1.000 2 329 (2s)-2-methyl-2,3-dihydrothieno[2,3-f][1,4]oxazepin-5-amine 0.733