Synthesis and hydrolysis of dipeptide isosteres containing a proline analogue with latent reactivity
作者:Andrew D. Abell、J.Christopher Litten
DOI:10.1016/s0040-4039(00)79584-0
日期:1992.5
The N-acyl hydroxymethylpyrrole amino acid analogues 5–7 and 9 were synthesized via a mild DMAP catalysed acylation of pyrrole-2-carboxaldehyde with an acid chloride followed by formyl group reduction with Zn(BH4)2. The N-acyl substituted hydroxymethylpyrroles are activated on hydrolysis to give an electrophilic species that can be trapped by an external nucleophile.
N-酰基羟甲基吡咯氨基酸类似物5-7和9是通过DMAP催化吡咯2-甲醛与酰氯的酰化,然后用Zn(BH 4)2还原甲酰基而合成的。N-酰基取代的羟甲基吡咯在水解时被活化,以产生可以被外部亲核试剂捕获的亲电子物种。