反应详情

This compound was made in a manner analogous to that set forth in Step D of Example 5, using 3.0 grams (0.022 mole) of 4-methoxybenzaldehyde, 3.6 grams (0.022 mole) of N-(2-aminoethyl)(tert-butoxy)carboxamide (known compound), 7.0 grams (0.033 mole) of sodium triacetoxyborohydride and 5.3 grams (0.044 mole) of magnesium sulfate in 30 mL of 1,2-dichloroethane. The reaction product was purified with column chromatography on silica gel. Elution was accomplished using mixtures of 2% to 5% methanol in methylene chloride as eluants. Appropriate fractions were combined and concentrated under reduced pressure, yielding 0.72 gram of the subject compound. The NMR spectrum was consistent with the proposed structure. The reaction was repeated to obtain additional material.

1. customThe reaction product was purified with column chromatography on silica gel
2. washElution
3. concentrationconcentrated under reduced pressure