Crystal modification A of 8-cyano-1- cyclopropyl -7-(1S,6S-2, 8-diazabicyclo [4.3.0]nonan -8-YL)-6- fluoro-1, 4-dihydro- 4-oxo-3- quinoline carboxylic acid

摘要

8-Cyano-1-cyclopropyl-7-(1S,6S-2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fl uoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid (CCDC) of the crystal modification A, characterized in that it has an X-ray powder diffractogram with the following reflection signals (2 theta) of high and medium intensity; 2è: 6.70, 8.92, 12.44, 13.66, 15.96, 17.60, 21.42, 21.78, 28.97.