| http://www.w3.org/ns/prov#value | - Alternately, the reduction step (e) can be accomplished by dissolving the aldehyde (4) in a low molecular weight alcohol, such as methanol, acidifying the solution with an excess of an organic acid, such as acetic acid, then reacting the aldehyde (4) with an appropriately substituted amine using a reducing agent, such as sodium cyanoborohydride (sodium cyancborchydride).
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