EP2010538A1 - PROCESS FOR THE PREPARATION OF Ý(1R), 2S¨-2-AMINOPROPIONIC ACID 2-Ý4-(4-FLUORO-2-METHYL-1H-INDOL-5-YLOXY)-5-METHYLPYRROLOÝ2,1-f¨Ý1,2,4¨TRIAZIN-6-YLOXY¨-1-METHYLETHYL ESTER