| 摘要 |
Compounds of the formula I or salts thereof <IMAGE> in which X denotes oxygen, -O-NR<2>- or -SO2-NR<2>- and Y denotes N or CH, R<1> denotes (C1-C6)alkyl, (C2-C6)alkenyl or (C2-C6)alkynyl, each of which is optionally substituted, or, if X is oxygen, also (substituted)phenyl, R<2> denotes H, (C1-C6)alkyl, (C2-C6)alkenyl or -alkynyl or (C3-C6)cycloalkyl, R<3> and R<4> denote H, (substituted) (C1-C4)alkyl or (substituted) (C1-C4)alkoxy or halogen, (C1-C4)alkylthio, (C1-C4)-alkylamino or di[(C1-C4)alkyl]-amino, and R<5> denotes H or (C1-C4)alkyl and R<6> denotes hydrogen, can be prepared by reacting compounds of the formula II R<1>-X-R<7> with compounds of the formulae III, IV and V, R<8>-OCN (III> SO2Cl2 <IMAGE> where R<7> and R<8> are H, a quaternary ammonium ion or the equivalent of a metal cation. The structure of the intermediates has not be elucidated. |
