反应详情

Methyl 4-[(2S,4R)-1-acetyl-2-methyl-4-(3-pyridinylamino)-1,2,3,4-tetrahydro-6-quinolinyl]-3-methylbenzoate (for a preparation see Example 173) (25 mg, 0.058 mmol) was dissolved in ethanol (1 mL) and treated with sodium hydroxide (1M in water, 0.291 mL, 0.291 mmol) and the resulting mixture was stirred at room temperature for 4 h then was concentrated in vacuo. Purification of the residue by MDAP (modifier: formic acid) gave 4-[(2S,4R)-1-acetyl-2-methyl-4-(3-pyridinylamino)-1,2,3,4-tetrahydro-6-quinolinyl]-3-methylbenzoic acid (2 mg, 8%) as a brown solid.

1. concentrationthen was concentrated in vacuo
2. customPurification of the residue by MDAP (modifier: formic acid)