An efficient and stereoselective synthesis of (2S,1′S,2′S)-2-(carboxycyclopropyl) glycine (LCCG-I): conformationally constrained l-glutamate analogues
摘要:
Conformationally restricted metabotropic glutamate receptor agonist (2S,1'S,2'S)-2-(Carboxycyclopropyl) glycine (LCCG-I) I have been efficiently synthesized in a stereoselective manner. A convenient five step synthesis of 1 from readily available (-)-dimenthyl(1S,2S)-cyclopropane-1,2-dicarboxylate 5 in 49% overall yield is described. (C) 2000 Elsevier Science Ltd. All rights reserved.
Here, we report a practical method for asymmetricsynthesis of cyclopropane-fused GABA analogs. Starting from 2-furaldehyde, the cis-isomer (CAMP) was synthesized over 10 steps; (−)- and (+)-CAMP·H...
The present invention relates to a compound of formula (I) wherein R1, R2, and R3 are defined as in the description and in the claims. The compound of formula (I) can be used as a radiolabeled ligand.