Synthesis and biological activity of glutamic acid derivatives
摘要:
In order to develop new specific glutamate analogues at metabotropic glutamate receptors, Diels-Alder, 1-4 ionic and radical reactions were performed starting from (2S)-4-methyleneglutamic acid.Preliminary pharmacological evaluation by measuring IP accumulation using rat forebrain synaptoneurosomes has shown that (2S)-4-(2-phthalimidoethyl)glutamic acid (3a), (2S)-4-(4-phthalimidobutyl)glutamic acid (3b) and 1-[(S)-2-amino-2-carboxyethyl]-3,4-dimethylcyclohex-3-ene-1-carboxylic acid (8) presented moderate antagonist activities. (C) 1998 Elsevier Science Ltd. All rights reserved.
Enantioselective synthesis of new 4-substituted glutamic acid derivatives
摘要:
Several new 4-substituted glutamic acid derivatives are described: 4-phosphinomethyl glutamic acid derivatives were prepared starting from (2S)-N-Boc-tert-butyl-4-methylene glutamate. The 4-carboxymethyl and 4-aminomethyl glutamic acid derivatives were obtained using asymmetric 1,4-addition conjugate of the enolate of Schiff base I to unsaturated esters. (C) 2004 Elsevier Ltd. All rights reserved.