150351-77-2

Upstream product

• 16944-60-8 (2S)-isopropylpiperazine-3,6-dione 
• 100-52-7 benzaldehyde 
• 75525-21-2 diacetyl-cyclo(L-Val-Gly) 

Downstream Products

• 205816-56-4 (Z,S)-1-Acetyl-3-benzylidene-4-(tert-butoxycarbonyl)-6-(1-methylethyl)piperazine-2,5-dione 
• 205816-55-3 (Z,S)-1,4-Diacetyl-3-benzylidene-6-(1-methylethyl)piperazine-2,5-dione 
• 150408-99-4 (1S,2R)-1-[(R)-2-(Adamantan-2-yloxycarbonylamino)-3-(1H-indol-3-yl)-2-methyl-propionylamino]-2-phenyl-cyclopropanecarboxylic acid methyl ester 
• 150351-75-0 (1S,2S)-1-[(R)-2-(Adamantan-2-yloxycarbonylamino)-3-(1H-indol-3-yl)-2-methyl-propionylamino]-2-phenyl-cyclopropanecarboxylic acid methyl ester 
• 150351-79-4 (1S,3S,6S)-6-Isopropyl-5-methoxy-1-phenyl-4,7-diaza-spiro[2.5]oct-4-en-8-one 
• 110769-86-3 (Z)-2,3-methanophenylalanine methyl ester 
• 123806-65-5 methyl (1S,2R)-1-amino-2-phenylcyclopropanecarboxylate 
• 216319-94-7 (3S,6S)-N,N'-bis-(p-methoxybenzyl)-3-isopropyl-6-benzyl-piperazine-2,5-dione 
• 812679-17-7 (6S,3Z)-N,N'-bis-(4-methoxybenzyl)-3-benzylidene-6-isopropyl-piperazine-2,5-dione 
• 74124-68-8 (6S,3Z)-3-benzylidene-6-isopropyl-piperazine-2,5-dione 

Relevant academic research and scientific papers

Preparation of dipeptoid mimetics for the tetrapeptide cholecystokinin, CCK(30-33)

The diastereoselective synthesis of 2,3-methanophenylalanine methyl esters (5) has been achieved in 58% yield. The preparation of the dehydropeptides (1, R = Me; 2, R = H) and the cyclopropylpeptides (3, R = Me; 4, R = H) possessing good binding affinities for the CCK-A and CCK-B receptors is described. Conformational studies of the dipeptide esters 1 and 3 indicated the presence of a β-turn within the peptide backbone, although there was no preference in type. The Phe and Trp moieties, however, did prefer to be situated on the same side of the peptide turn which is favourable for receptor binding.