EP3717480A1 - METHOD FOR PRODUCING (3S)-3-(4-CHLOR-3-{[(2S,3R)-2-(4-CHLORPHENYL)-4,4,4-TRIFLUOR-3-METHYLBUTANOYL]AMINO}PHENYL)-3-CYCLO-PROPYLPROPANOIC ACID AND THE CRYSTALLINE FORM THEREOF FOR USE AS A PHARMACEUTICAL INGREDIENT