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Salts and polymorphs of cyclic boronic acid ester derivatives and therapeutic uses thereof

  • US 9,687,497 B1
  • Filed: 04/29/2015
  • Issued: 06/27/2017
  • Est. Priority Date: 05/05/2014
  • Status: Active Grant
First Claim
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1. A potassium salt of 2-((3R,6S)-2-hydroxy-3-(2-(thiophen-2-yl)acetamido)-1,2-oxaborinan-6-yl)acetic acid.

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