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PYRANOQUINAZOLINE DERIVATIVES AND NAPHTHOPYRAN DERIVATIVES

  • US 20200131193A1
  • Filed: 01/31/2018
  • Published: 04/30/2020
  • Est. Priority Date: 03/14/2017
  • Status: Active Grant
First Claim
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1. A compound represented by the following general formulas (1), (2) or (3):

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