Different crystalyzed (-)-6-chloro-4-cyclopropyl ethinyl-4-trifluoride-1,4-dihydro-2H-3,1-benzoxazine-2-ketone

Different crystalyzed (-)-6-chloro-4-cyclopropyl ethinyl-4-trifluoride-1,4-dihydro-2H-3,1-benzoxazine-2-ketone

  • CN 1,385,425 A
  • Filed: 02/02/1998
  • Published: 12/18/2002
  • Est. Priority Date: 02/05/1997
  • Status: Abandoned Application
First Claim
Patent Images

1. (-)-6-chloro-4-encircles third ethynyl-4-Trifluoromethyl-1,4-dihydro-2H-3, and the I type crystallization of 1-benzoxazine-2-ketone is characterized in that the D-at its crystal diffraction peak is spaced apart:

  • 14.5,8.5,8.0,7.2,6.7,6.2,5.2,4.6,4.4,4.2 and 3.6 dusts.

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