| 摘要 |
New 1-oxa-2-oxo-3-R-3-aza- 5-Z-cyclopentane derivatives, wherein R is alkyl or hydroxyalkyl having in each case 1-6 C atoms, cycloalkyl having 3-8 C atoms, unsubstituted aryl or aralkyl or aryl or aralkyl each of which has a total of 6-15 C atoms and, in the aryl radical, is monosubstituted to trisubstituted by alkyl, alkoxy, OH and/or Cl or monosubstituted by methylenedioxy, Z is -(CHOH)n-H and n is 2, 3, 4 or 5, can be used as intermediate products for the preparation of active compounds for medicaments, such as toloxatone. |
