中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
Boc-L-天冬氨酸 4-甲酯 | (S)-2-t-butoxycarbonylaminosuccinic acid 4-methyl ester | 59768-74-0 | C10H17NO6 | 247.248 |
A chiral β-amino acid derivative was synthesised by a cobalt-catalysed alkylation of 2,4,5-trifluorophenyl magnesium bromide with the alkyl halide derivative of L-aspartic acid, using an efficient catalytic reagent: CoCl2/TMEDA. The halide derivative was synthesised from protected L-aspartic acid β-methyl ester and the Grignard reagent was made by bromine- magnesium exchange. The stereo-structure was well preserved from L-aspartic acid.