Ethanol, 1-bromo- → 3-(2-bromoethyl)-6-fluoro-1-(2-fluorophenyl)-3,4-dihydro-1H-2,1,3-benzothiadiazine 2,2-dioxide

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Reaction Steps

In an analogous manner to Example 11 step 4, a solution of 6-fluoro-1-(2-fluorophenyl)-3,4-dihydro-1H-2,1,3-benzothiadiazine 2,2-dioxide (1.01 g, 3.4 mmol) was reacted with bromoethanol (0.95 mL, 13.4 mmol) to afford 3-(2-bromoethyl)-6-fluoro-1-(2-fluorophenyl)-3,4-dihydro-1H-2,1,3-benzothiadiazine 2,2-dioxide (0.943 g, 69%) as white solid:

Provenance & Evidence