反应详情

Similar procedure as described in example 41c was used, starting from 6-(2-methylsulfanyl-4-oxo-4H-thiazol-5-ylidenemethyl)-4-pyridin-3-yl-quinoline-3-carbonitrile (example 63e), and ammonia in methanol to give 6-(2-amino-4-oxo-4H-thiazol-5-ylidenemethyl)-4-pyridin-3-yl-quinoline-3-carbonitrile. Flash chromatography using a small amount of trifluoroacetic acid as a cosolvent gave 6-[2-amino-4-oxo-4H-thiazol-(5Z)-ylidenemethyl]-4-pyridin-3-yl-quinoline-3-carbonitrile; compound with trifluoro-acetic acid. LC-MS m/e 358 (MH+).