Novel $G(y)crystalline form of perindopril tert- butylamine salt, preparation method, and pharmaceutical compositions containing same

γ crystalline form of the compound of formula (I):

• 3
• characterised by the following powder x-ray diffraction diagram, measured using a diffractometer (copper anticathode) and expressed in terms of inter-planar distance d, bragg's angle 2 theta, intensity and relative intensity (expressed as a percentage with respect to the most intense ray):
• 3 Angle 2 theta Inter-planar Relative intensity (°) distance d (Å) Intensity (%) 6.298 14.02 630 39.8 7.480 11.81 380 24 8.700 10.16 1584 100 9.276 9.53 318 20.1 10.564 8.37 526 33.2 11.801 7.49 54 3.4 12.699 6.96 86 5.4 13.661 6.48 178 11.2 14.095 6.28 163 10.3 14.332 6.17 290 18.3 14.961 5.92 161 10.2 15.793 5.61 128 8.1 16.212 5.46 179 11.3 16.945 5.23 80 5.1 17.291 5.12 92 5.8 17.825 4.97 420 26.5 18.100 4.90 159 10 18.715 4.74 89 5.6 19.017 4.66 118 7.4 19.362 4.58 134 8.5 19.837 4.47 133 8.4 20.609 4.31 95 6 21.232 4.18 257 16.2 21.499 4.13 229 14.5 21.840 4.07 127 8 22.129 4.01 191 12.1 22.639 3.92 137 8.6 23.000 3.86 88 5.6 23.798 3.74 147 9.3 24.170 3.68 70 4.4 25.066 3.55 167 10.5 25.394 3.50 165 10.4 26.034 3.42 84 5.3 26.586 3.35 75 4.7 27.541 3.24 74 4.7 28.330 3.15 85 5.4 29.589 3.02 96 6.1