Tabata, Hidetsugu Wada, Naoya Takada, Yuko Oshitari, Tetsuta Takahashi, Hideyo Natsugari, Hideaki Isolation and Characterization of Atropisomers of Seven-Membered-Ring Benzolactams The atropisomeric properties of seven-membered-ring benzolactams (<b>7a</b>–<b>c</b> and <b>8a</b>) [1,5-benzodiazepin-2-one (<b>a</b>), 1,5-benzothiazepin-4-one (<b>b</b>), and 1-benzazepin-2-one (<b>c</b>)] were examined. The atropisomers were isolated as the diastereomers with an (<i>S</i>)-phenethylamide moiety, which were characterized by X-ray crystallography, and the barriers to their interconversion were clarified. benzolactam;atropisomer;benzothiazepin;BenzolactamsThe;moiety;barrier;atropisomeric;crystallography;benzodiazepin;Isolation;diastereomer;benzazepin;Characterization;interconversion;Atropisomer 2011-06-17
    https://acs.figshare.com/articles/dataset/Isolation_and_Characterization_of_Atropisomers_of_Seven_Membered_Ring_Benzolactams/2640985
10.1021/jo2008725.s005