Stability of Schiff base in presence of NaH?

I need to make a reaction of amine (R-NH2) with ester in the presence of NaH in order to obtain amide (R-NH-CO-R'-NH2). The point is that ester also carries the NH2 group (H2N-R'-CO2-R''). How to...

21 January 2014 282 4 View