Synthesis of 2′-Bromo-8-methylspiro(4H-3,1-benzooxazine-4,1′-cyclopentan)-2(1H)-one and 2-Amino-2′-bromo-8-methylspiro(4H-3,1-benzooxazine-4,1′-cyclopentane) from 6-(Cyclopent-1-enyl)-2-methylaniline.

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