Water → HCID 66625363, compound

Participants

Reaction Steps

[Step 6] 66.1 mg of ethyl (2S,4S)-1-acetyl-4-(4-aminophenoxy)-2-methyl-1,2,3,4-tetrahydroquinoline-6-carboxylate was dissolved in 2 mL of toluene, and 312 μL of N,N-diisopropylethylamine and 113 μL of 2-bromoethyl ether were added to the solution at 0° C. The mixture was heated to reflux for 14 hours. After completion of the reaction, the reaction liquid was cooled, water was added thereto, and the mixture was extracted three times with chloroform. The extraction product was washed with saturated brine, dehydrated over anhydrous sodium sulfate, and then concentrated under reduced pressure. The resulting residue was purified by using silica gel chromatography (hexane:ethyl acetate=1:1), and thus 59.4 mg (75.7%) of ethyl (2S,4S)-1-acetyl-2-methyl-4-(4-morpholinophenoxy)-1,2,3,4-tetrahydroquinoline-6-carboxylate was obtained as a pale yellow oily substance.

Provenance & Evidence