191731-16-5Relevant articles and documents
Improved synthesis of rupintrivir
Lin, Daizong,Qian, Wangke,Hilgenfeld, Rolf,Jiang, Hualiang,Chen, Kaixian,Liu, Hong
experimental part, p. 1101 - 1107 (2012/09/08)
An improved synthesis of rupintrivir (AG7088) was accomplished using three amino acids (l-glutamic acid, d-4-fluorophenylalanine, and l-valine) as the building blocks. The key fragment ketomethylene dipeptide isostere was constructed with the valine derivative and phenylpropionic acid derivative, followed by coupling with a lactam derivative and an isoxazole acid chloride to provide AG7088 totally in eight steps.
An efficient synthesis of γ-amino β-ketoester by cross-Claisen condensation with α-amino acid derivatives
Honda, Yutaka,Katayama, Satoshi,Kojima, Mitsuhiko,Suzuki, Takayuki,Izawa, Kunisuke
, p. 3163 - 3166 (2007/10/03)
Cross-ester condensation between N-protected amino acid ester and the lithium enolate prepared from alkyl acetate gave the corresponding β-ketoester in high yield without the formation of the tertiary alcohol that is commonly seen as by-product. This inte
Pentapeptides as antitumor agents
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, (2008/06/13)
The present invention provides anti-tumor peptides of Formula I, and the acid salts thereof. A is an amino acid residue of the formula (CH3)2 N--CHX--CO, wherein X is a normal or branched alkyl group. B is an amino acid residue s