EP 1435912 A1 20040714 - NOVEL STABLE CRYSTAL FORM OF N-TRANS-4-ISOPROPYLCYCLOHEXYL CARBONYL)-D-PHENYLALANINE AND PROCESS OF PREPARATION
Title (en)
NOVEL STABLE CRYSTAL FORM OF N-TRANS-4-ISOPROPYLCYCLOHEXYL CARBONYL)-D-PHENYLALANINE AND PROCESS OF PREPARATION
Title (de)
NEUE STABILE KRISTALLFORM VON N-TRANS-4-ISOPROPYLCYCLOHEXYL CARBONYL)-D-PHENYLALANIN UND HERSTELLUNGSVERFAHREN
Title (fr)
NOUVELLE FORME DE CRISTAL STABLE DE N-(TRANS-4-ISOPROPYLCYCLOHEXYL CARBONYL)-D-PHENYLALANINE ET PROCEDE DE PREPARATION CORRESPONDANT
Publication
Application
Priority
- IB 0102080 W 20011105
- IN 871MU2001 A 20010912
- IN 872MU2001 A 20010912
Abstract (en)
[origin: WO03022251A1] This invention relates to novel stable crystal form of N-(trans-4-isopropylcyclohexylcarbonyl)-D-phenylalanine may be produced by crystallisation of N-(trans-4-isopropylcyclohexylcarbonyl)-D-phenylalanine with a solvent at 25 - 38 DEG C and forming crystals in the solvent. The crystal form may be formed by recrystallisation out of solution. The Crystal form obtained in this way have different melting point, infra red spectrum and X-ray diffraction patterns from previously known forms "B-type" and "H-Type" of the compound.
IPC 1-7
IPC 8 full level
C07C 233/63 (2006.01)
CPC (source: EP)
C07C 233/63 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03022251 A1 20030320; EP 1435912 A1 20040714; EP 1435912 A4 20050330
DOCDB simple family (application)
IB 0102080 W 20011105; EP 01978760 A 20011105