16227-22-8Relevant articles and documents
Voynick,Fruton
, p. 40,42 (1968)
Synthesis and Characterization of a Series of Orthogonally Protected l-Carnosine Derivatives
El-Dakdouki, Mohammad H.,Daouk, Nadine,Abdallah, Hiba
, p. 1 - 12 (2018/02/19)
l-Carnosine (β-alanyl-l-histidine) is an endogenous dipeptide that has been recognized for its broad spectrum of beneficial biological activities. However, the therapeutic utility of molecule has been hampered by its instability in human plasma (half-life
"Backdoor Induction" of chirality in asymmetric hydrogenation with rhodium(I) complexes of amino acid substituted triphenylphosphane ligands
Kokan, Zoran,Kirin, Srecko I.
supporting information, p. 8154 - 8161 (2014/01/06)
This paper describes the synthesis and characterization of 5-(diphenylphosphanyl)isophthalic acid bioconjugates (Lig-[R]2). In addition to symmetrically disubstituted conjugates with amino acids, peptides or amines, a convenient one-pot, two-step procedure for the synthesis of conjugates bearing two different substituents is reported. The 28 prepared phosphanes were used as monodentate ligands in the rhodium(I)-catalyzed hydrogenation of 2-acetamidoacrylate and (Z)-α-acetamidocinnamate. The ligand with the smallest side-chain substituents Lig-[Ala-OMe]2 (1a) revealed the highest selectivity, with up to 84 % ee. The catalysts presented herein are models of artificial metalloenzymes in which the outer-coordination sphere controls the selectivity in catalysis. The chirality of distant hydrogen-bonded amino acids is transmitted by "backdoor induction" to the prochiral RhI center. Models of artificial metalloenzymes are presented in which the outer-coordination sphere controls the selectivity in catalysis. The chirality of distant hydrogen-bonded amino acids or amines is transmitted by "backdoor induction" to the prochiral RhI center. Copyright
Synthesis of Sansalvamide A derivatives and their cytotoxicity in the MSS colon cancer cell line HT-29
Styers, Thomas J.,Kekec, Ahmet,Rodriguez, Rodrigo,Brown, Joseph D.,Cajica, Julia,Pan, Po-Shen,Parry, Emily,Carroll, Chris L.,Medina, Irene,Corral, Ricardo,Lapera, Stephanie,Otrubova, Katerina,Pan, Chung-Mao,McGuire, Kathleen L.,McAlpine, Shelli R.
, p. 5625 - 5631 (2007/10/03)
We report the synthesis of thirty-six Sansalvamide A derivatives, and their biological activity against colon cancer HT-29 cell line, a microsatellite stable (MSS) colon cancer cell-line. The thirty-six compounds can be divided into three subsets, where t