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Polymorphs

  • US 11,084,819 B2
  • Filed: 10/24/2019
  • Issued: 08/10/2021
  • Est. Priority Date: 05/04/2006
  • Status: Active Grant
First Claim
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1. An anhydrous polymorph A of the compound 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine, characterised in that it melts at 206±



  • C.

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