Water → (2-chloro-4-pyrimidinyl)(3-methyl-1,3-benzothiazol-2(3H)-ylidene)ethanenitrile

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Reaction Steps

To a solution of 1 (0.1 g, 0.35 mmol) in dry DMSO was added dry K2CO3 then methyl iodide and the suspension was shaken at rt. for 2 days. The precipitate formed by addition of water was filtered off then washed with water until neutral pH. The crude residue, dried under vacuum at 40° C., was triturated in warm acetonitrile, filtered off then dried under vacuum at 40° C., affording 5.6 mg (5%) of the title compound as a yellow powder.

Provenance & Evidence