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Stable crystal form of tipiracil hydrochloride and crystallization method for the same

DC
  • US 9,527,833 B2
  • Filed: 06/17/2014
  • Issued: 12/27/2016
  • Est. Priority Date: 06/17/2013
  • Status: Active Grant
First Claim
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1. A crystal of 5-chloro-6-(2-iminopyrrolidin-1-yl)methyl-2,4(1H,3H)-pyrimidinedione hydrochloride, which is crystal Form I, exhibiting peaks at two or more angles selected from the group consisting of 11.6°

  • , 17.2°

    , 17.8°

    , 23.3°

    , 27.1°

    , and 29.3°

    as a diffraction angle (2θ

    ±

    0.1°

    ) in powder X-ray diffraction.

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