PHENYL-GLYCINE DERIVATIVES

• Main Authors: PALI, LAJOSNE, KRUPPA, MARTA, HUSZAR, CSABA, SOMFAI, EVA, BAN, KAROLY, BAN, ANNAMARIA
• Format: Patent
• Language: English
• Published: 21.02.1991
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

Process for the preparation of compounds (I), wherein X, Y, A and R are defined as in Claim 1, by reaction of a substituted phenyl-glycine (VII) in the presence of alkanol with 1.05-1.3 moles of alkali-hydroxide and reacting the reaction mixture with an acid, the pH-value of which is higher than 4.3...