Glycine ethyl ester, hydrochloride → N-(3-Nitrophenylacetyl)-L-alaninylglycine Ethyl Ester
Reaction equation
[N+:1]([C:4]1[CH:5]=[C:6]([CH2:10][C:11]([NH:13][C@H:14]([C:16]([OH:18])=O)[CH3:15])=[O:12])[CH:7]=[CH:8][CH:9]=1)([O-:3])=[O:2].Cl.[CH2:20]([O:22][C:23](=[O:26])[CH2:24][NH2:25])[CH3:21]>>[CH2:20]([O:22][C:23](=[O:26])[CH2:24][NH:25][C:16](=[O:18])[C@H:14]([CH3:15])[NH:13][C:11](=[O:12])[CH2:10][C:6]1[CH:7]=[CH:8][CH:9]=[C:4]([N+:1]([O-:3])=[O:2])[CH:5]=1)[CH3:21]Participants
3
Procedure
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 glycine ethyl ester hydrochloride (Sigma), the title compound was prepared as a solid (mp=164-165° C.). The product was purified by silica gel chromatography using EtOAc as the eluent, followed by recrystallization from EtOAc.
Workup
- customThe product was purified by silica gel chromatography
- customfollowed by recrystallization from EtOAc
Sources & evidence
- ORD record
- ord-02b08a723198414d97379971f3417e0e
- Source dataset
- uspto-grants-2001_04
- Patent number
- US06211235B1
Reaction notes
Loading…