反应详情

To a solution of 2-amino-7-aminomethyl-6-(4-methoxy-benzyl)-4,5,6,7-tetrahydro-thieno[2,3-c]pyridine-3-carboxylic acid tert-butyl ester (80 mg, 0.20 mmol) and diisopropyl ethylamine (35 μl, 0.40 mmol) in acetonitrile (10 ml) at room temperature as added a solution of 6-bromomethyl-2-(tert-butyl-dimethyl-silanyloxy)-benzoic acid ethyl ester (69 mg, 0.2 mmol). The solution was stirred for 12 hours at room temperature and the solvent was evaporated in vacuo. The residue was dissolved in ethyl acetate (50 ml) and washed with water, 1 N hydrochloric acid, brine, dried (MgSO4), filtered and the solvent evaporated in vacuo. The residue was chromatographed on silica gel column eluted with 20% ethyl acetate/hexane to yield 42 mg (33%) of 2-amino-7-(7-(tert-butyl-dimethyl-silanyloxy)-1-oxo-1,3-dihydro-isoindol-2-ylmethyl)-6-(4-methoxy-benzyl)-4,5,6,7-tetrahydro-thieno[2,3-c]pyridine-3-carboxylic acid tert-butyl ester as an oil.

1. customthe solvent was evaporated in vacuo
2. dissolutionThe residue was dissolved in ethyl acetate (50 ml)
3. washwashed with water, 1 N hydrochloric acid, brine
4. dry with materialdried (MgSO4)
5. filtrationfiltered
6. customthe solvent evaporated in vacuo
7. customThe residue was chromatographed on silica gel column
8. washeluted with 20% ethyl acetate/hexane