作者:Masood Parvez、Sumaira Umbreen、Farzana Latif Ansari
DOI:10.1107/s0108270103008345
日期:2003.6.15
In the structures of 2-(4-chlorophenyl)-4-(2-hydroxyphenyl)2,3- dihydro-1,5-benzothiazepine, C21H16ClNOS, 4-(2-hydroxyphenyl)2-( 4- tolyl)-2,3-dihydro-1,5-benzothiazepine, C22H19NOS, and 4-(2-hydroxyphenyl)-2-(3-methoxyphenyl)-2,3-dihydro1,5- benzothiazepine, C22H19NO2S, the central seven-membered heterocyclic rings adopt twist-boat conformations in which the N atoms are involved in strong intramolecular hydrogen bonds with the hydroxyl H atoms, resulting in six-membered rings.