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CRYSTAL FORM, PREPARATION METHOD AND INTERMEDIATE OF DIHYDROPYRIDO RING COMPOUND

  • US 20180312512A1
  • Filed: 11/02/2016
  • Published: 11/01/2018
  • Est. Priority Date: 11/04/2015
  • Status: Active Application
First Claim
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1. The crystal form I of Compound 1, comprising an X-ray powder diffraction pattern with characteristic diffraction peaks at the following 2θ

  • angles;

    15.50±

    0.2°

    , 17.00±

    0.2°

    , 20.86±

    0.2°

    ;

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