Water → HCID 23047272, compound

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Reaction Steps

1 g (3,6 mmol) 5-(3,6-dihydro-6-methyl-2-oxo-2H-1,3,4-thiadiazin-5-yl)-1H-indole-2,3 dione (Example 12) were dissolved under argon in 25 ml dry THF in a flame dried flask. 12 ml 3M methyl magnesium bromide in ether (10 eq) were added dropwise at 0°-5° C. The mixture was stirred overnight. 50 ml water were added, and extracted with ethyl acetate. The organic layers were washed with water and dried over magnesium sulfate. Purification by chromatography on silica (eluent:methylene chloride/ethyl acetate: 2/1), yielded 300 mg (28%) of the desired compound.

Provenance & Evidence