Crystals and process of making 5-({[2-amino-3-(4-carbamoyl-2,6-dimethyl-phenyl)-propionyl]-[1-(4-phenyl-1H-imidazol-2-yl)-ethyl]-amino}-methyl)-2-methoxy-benzoic acid
The present invention relates to a novel crystals of 5-({[2-amino-3-(4-carbamoyl-2,6-dimethyl-phenyl)-propionyl]-[1-(4-phenyl-1h-imidazol-2-yl)-ethyl]-amino}-methyl)-2-methoxy-benzoic acid and methods of making the zwitterion of 5-({[2-amino-3-(4-carbamoyl-2,6-dimethyl-phenyl)-propionyl]-[1-(4-phenyl-1h-imidazol-2-yl)-ethyl]-amino}-methyl)-2-methoxy-benzoic acid.
1. A Form β crystal of 5({[2-amino-3-(4-carbamoyl-2,6-dimethyl-phenyl)-propionyl]-[1-(4-phenyl-1h-imidazol-2-yl)-ethyl]-amino}-methyl)-2-methoxy-benzoic acid, wherein said crystal is characterized by a powder X-ray diffraction patterns having powder X-ray diffraction peaks at about 11.0, 12.4, and 15.2 degrees 2-theta.
2. The β crystal of claim 1 , wherein said crystal is characterized by a powder X-ray diffraction pattern having powder X-ray diffraction peaks at about 11.0, 12.4, 14.9, 15.2, and 22.1 degrees 2-theta.
3. The β crystal of claim 1 , wherein said crystal is characterized by a powder X-ray diffraction pattern having powder X-ray diffraction peaks at about 11.0, 12.4, 14.9, 15.2, 22.1, 25.6, 27.4, and 30.4 degrees 2-theta.
4. A Form β crystal of 5-({[2-amino-3-(4-carbamoyl-2,6-dimethyl-phenyl)-propionyl]-[1-(4-phenyl-1h-imidazol-2-yl)-ethyl]amino}-methyl)-2-methoxy-benzoic acid wherein said crystal is characterized by a powder X-ray diffraction pattern having powder X-ray diffraction peaks substantially as shown in Table 2.
5. A Form β crystal of 5-({[2-amino-3-(4-carbamoyl-2,6-dimethyl-phenyl)-propionyl]-[1-(4-phenyl-1h-imidazol-2-yl)-ethyl]-amino}-methyl-2-methoxy-benzoic acid wherein said crystal is characterized by a powder X-ray diffraction pattern having powder X-ray diffraction peaks substantially similar to the powder X-ray diffraction peaks of FIG. 1 .