中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | dimethyl 1-benzylpyrrolidine-2,5-dicarboxylate | 51483-87-5 | C15H19NO4 | 277.32 |
—— | cis-2,5-dimethyl N-benzylpyrrolidine-2,5-dicarboxylate | 102508-03-2 | C15H19NO4 | 277.32 |
1-苄基-2,5-吡咯烷二甲酸 | 1-benzylpyrrolidine-2,5-dicarboxylic acid | 433933-93-8 | C13H15NO4 | 249.266 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (2S,5S)-1-benzyl-5-(methoxycarbonyl)pyrrolidine-2-carboxylic acid | 111138-50-2 | C14H17NO4 | 263.293 |
—— | meso-1-benzyl-2,5-bis(methoxycarbonyl)-2,5-dimethylpyrrolidine | 281668-36-8 | C17H23NO4 | 305.374 |
—— | N-benzyl-2,5-bis(hydroxymethyl)pyrrolidine | —— | C13H19NO2 | 221.299 |
英文名称:(1-BENZYLPYRROLIDINE-2,5-DIYL)DIMETHANOL | 1-Benzyl-2,5-bis-hydroxymethyl-pyrrolidin | 92197-46-1 | C13H19NO2 | 221.299 |
—— | (2S,5S)-2,5-Bis(methoxycarbonyl)pyrrolidine | 111071-93-3 | C8H13NO4 | 187.196 |
Ball milling was exploited to prepare a substituted proline building block by mechanochemical nucleophilic substitution. Subsequently, the mechanocoupling of hindered proline amino acid derivatives was developed to provide proline–proline dipeptides under solvent-free conditions. A deprotection–cyclization sequence yielded the corresponding diketopiperazines that were obtained with a high stereoselectivity which could be explained by DFT calculations. Using this method, an enantiopure disubstituted Pro–Pro diketopiperazine was synthesized in 4 steps, making 5 new bonds using a ball mill.