| 摘要 |
<p>Novel aromatic-spiropiperidineoxazepinones and thiones exhibiting antihistamine activity are disclosed having the formula: <CHEM> wherein A represents an aromatic ring, selected from benzo when Z is carbon or pyrido[3,2-f] when Z is nitrogen either of which rings may be optionally substituted on carbon; B is selected from oxygen or sulfur; R<1> is selected from the group consisting of loweralkyl, cycloalkyl, cycloalkyl-loweralkyl or phenyl-loweralkyl of which phenyl may be optionally substituted; R is selected from the group consisting of loweralkyl, cycloalkyl or phenyl-loweralkyl of which phenyl may be optionally substituted and the pharmaceutically acceptable salts thereof and novel chemical intermediates in the preparation thereof.</p> |
