1-(3,4,5-Trimethoxybenzoyl)-2-methyl-1,2,3,4-tetrahydro-4-quinolinol → Ethyl 5-[[1-[2-methyl-1-(3,4,5-trimethoxybenzoyl)-1,2,3,4-tetrahydro-4-quinolinyl]-1,2,3,4-tetrahydro-6-quinolinyl]oxy]pentanoate

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Starting with 2-methyl-1-(3,4,5-trimethoxybenzoyl)-1,2,3,4-tetrahydro-4-quinolinol (1.3 g, 3.6 mmol) prepared in Reference Example 22 and ethyl 5-[(1,2,3,4-tetrahydro-6-quinolinyl)oxy]pentanoate (2.30 g, 8.28 mmol), the same procedure as shown in Example 1 was repeated to give the titled compound (806 mg, yield: 40%) as a colorless oil. (cis:trans=1:1.3)

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