| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a stable crystal form of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound A). <P>SOLUTION: The crystal of compound A is one in which the characteristic diffraction peak at a diffraction angle 2θ(°) as measured by powder X-ray diffraction has a specified powder X-ray pattern. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
