PROCESS FOR PREPARATION OF $G(A)-HYDROXYCARBOXYLIC ACID AMIDES

• Main Authors: FABER DOMINIK, LAMBERTH CLEMENS, ZELLER MARTIN, VETTIGER THOMAS
• Format: Patent
• Language: English; Polish
• Published: 21.03.2005
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

The invention concerns a novel process for the preparation of 2-phenyl-2-hydroxy-N-Ä2-(3-alkoxy-4-hydroxyphenyl)-ethylÜ-acetamides of the formula I wherein R1 is alkyl, R2, and R3 are each independently hydrogen or alkyl, and R4, is optionally substituted aryl or optionally substituted heteroaryl, w...