反应详情

2-Amino-5-(S)-(1,3-dioxo-1,3-dihydro-isoindol-2-ylmethyl)-6-(1-(S)-phenyl-ethyl)-4,5,6,7-tetrahydro-thieno[2,3-c]pyridine-3-carboxylic acid tert-butyl ester (7.96 g, 15.4 mmol) and hydrazine hydrate (3.85 g, 77.0 mmol) in ethanol (250 ml) was stirred for 16 hours at room temperature. The solvent was removed in vacuo and the solid residue was extracted with diethyl ether (3×200 ml). The fractions were combined and the solvent removed in vacuo to give 5.9 g (100%) of 2-amino-5-(S)-aminomethyl-6-(1-(S)-phenyl-ethyl)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylic acid tert-butyl ester.

1. customThe solvent was removed in vacuo
2. extractionthe solid residue was extracted with diethyl ether (3×200 ml)
3. customthe solvent removed in vacuo