Ethyl Acetoacetate → Ethyl 4-(2-bromo-4-fluorophenyl)-6-methyl-2-(1,2,4-thiadiazol-5-yl)-1,4-dihydropyrimidine-5-carboxylate

Participants

Reaction Steps

1,2,4-thiadiazole-5-carboximidamide hydrochloride (1.43 g, 8.69 mmol) was reacted with 2-bromo-4-fluorobenzaldehyde (1.76 g, 8.69 mmol) and ethyl 3-oxobutanoate (1.36 g, 10.5 mmol) according to the procedure as described in Example 1, Step A to give the title compound as a yellow solid (1.3 g, 35%). The compound was characterized by the following spectroscopic data:

Provenance & Evidence