4-(3-Fluoro-2-methoxyphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)pentanal → 2-Amino-5-{[4,4-dimethyl-6-fluoro-2-hydroxy-5-methoxy-2-(trifluoromethyl)-1,2,3,4-tetrahydronaphthalen-1-yl]amino}-8-fluoro-quinoline

Participants

Reaction Steps

Analogously to Example 10, a mixture of the corresponding imines is produced starting from 237 g of 4-(3-fluoro-2-methoxyphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)pentanal and 137 mg of a mixture that consists of 5-amino-8-fluoroquinolin-2(1H)-one and 2,5-diamino-8-fluoroquinoline. Analogously to Example 3, the mixture of imines with 2.5 ml of titanium tetrachloride solution (1 M in dichloromethane) is reacted, and the two title compounds are obtained after chromatography on silica gel.

Provenance & Evidence