5-(5-ethyl-2-oxo-5-thien-2-yl-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl)-1-methyl-1H-pyrrole-2-carbonitrile 生成 5-[(5S)-5-ethyl-2-oxo-5-thien-2-yl-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl]-1-methyl-1H-pyrrole-2-carbonitrile 、 5-[(5R)-5-ethyl-2-oxo-5-thien-2-yl-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl]-1-methyl-1H-pyrrole-2-carbonitrile