![(3S)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylicacidethylester](https://www.organotin.org/wp-content/themes/WPGroup-Red-en/images/default-banner.jpg)
3-De]-1
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