4-[5-(pyridine-4-yl)-1h-1,2,4-triazole-3-yl]pyridine-2-carbonitrile crystalline polymorph and production method therefor

4-[5-(pyridine-4-yl)-1h-1,2,4-triazole-3-yl]pyridine-2-carbonitrile crystalline polymorph and production method therefor

  • CN 104,411,700 A
  • Filed: 07/24/2013
  • Published: 03/11/2015
  • Est. Priority Date: 07/25/2012
  • Status: Active Application
First Claim
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1. The I type crystallization of 1.4-[5-(pyridin-4-yl)-1H-1,2,4-triazole-3-base] pyridine-2-nitrile, it is in powder x-ray diffraction, is have characteristic peak near 10.1,16.0,20.4,25.7 and 26.7 degree in the value of diffraction angle 2 θ

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