EP 2041070 A1 20090401 - METHOD FOR PRODUCING OPTICALLY ACTIVE 3-AMINOCARBOXYLIC ACID ESTERS
Title (en)
METHOD FOR PRODUCING OPTICALLY ACTIVE 3-AMINOCARBOXYLIC ACID ESTERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON OPTISCH AKTIVEN 3-AMINOCARBONSÄUREESTERN
Title (fr)
PROCÉDÉ DE FABRICATION D'ESTERS D'ACIDES 3-AMINOCARBOXYLIQUES OPTIQUEMENT ACTIFS
Publication
Application
Priority
- EP 2007056843 W 20070705
- EP 06116717 A 20060706
- EP 07787131 A 20070705
Abstract (en)
[origin: WO2008003761A1] The invention relates to a method for producing optically active 3-aminocarboxylic acid ester compounds. According to said method, an enantiomer mixture of a mono-N-acylated 3-aminocarboxylic acid ester, which mixture was previously enriched in an enantiomer, is subjected to deacylation and then to a further enantiomer enrichment by crystallization by adding an acidic salt-forming substance.
IPC 8 full level
C07C 227/32 (2006.01); C07C 229/08 (2006.01)
CPC (source: EP US)
C07C 227/32 (2013.01 - EP US)
Citation (search report)
See references of WO 2008003761A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2008003761 A1 20080110; CN 101484414 A 20090715; CN 101484414 B 20121121; EP 2041070 A1 20090401; JP 2009542603 A 20091203; JP 5566103 B2 20140806; US 2009299089 A1 20091203
DOCDB simple family (application)
EP 2007056843 W 20070705; CN 200780025637 A 20070705; EP 07787131 A 20070705; JP 2009517278 A 20070705; US 30747207 A 20070705