Benzyl Bromide → HCID 23287722, compound

Participants

Reaction Steps

The reaction procedure of Example 11 was followed except that 900 mg (3.21 mmol) of 2-(4-cyanoanilino)-4H-pyrido[3,2-e]-1,3-thiazin-4-one, 28 mg of lithium hydride and 604 mg of benzyl bromide were used. The resulting residue was then purified through silica gel column chromatography (eluant: chloroform) to obtain 834 mg of 3-benzyl-2-[(4-cyanophenyl)imino]-2,3-dihydro-4H-pyrido[3,2-e]-1,3-thiazin-4-one (70%, recrystallized from a mixture of ether and hexane) as a low polarity substance and 103 mg of 2-[N-benzyl-N-(4-cyanophenyl)-N-propylamino]-4H-pyrido[3,2-e]-1,3-thiazin-4-one (10%, recrystallized from ether) as a high polarity substance.

Provenance & Evidence