L-Tyrosine ethyl ester → N-[N-(3-Nitrophenylacetyl)-L-alaninyl]-L-tyrosine Ethyl Ester

Participants

Reaction Steps

Following General Procedure C and using N-(3-nitrophenylacetyl)-L-alanine (prepared from 3-nitrophenylacetic acid (Aldrich) and L-alanine ethyl ester hydrochloride (Sigma) using General Procedure C, followed by hydrolysis using General Procedure AF) and L-tyrosine ethyl ester (Sigma), the title compound was prepared as a solid (mp=117-119° C.). The reaction was monitored by tlc (Rf=0.5 in EtOAc) and the product was purified by silica gel chromatography using EtOAc as the eluent.

Provenance & Evidence