302341-70-4Relevant articles and documents
Synthesis and biological characterization of the histone deacetylase inhibitor largazole and C7- modified analogues
Souto, José A.,Vaz, Esther,Lepore, Ilaria,P?ppler, Ann-Christin,Franci, Gianluigi,álvarez, Rosana,Altucci, Lucia,De Lera, ángel R.
experimental part, p. 4654 - 4667 (2010/10/02)
Largazole 4a and analogues with modifications at the C7 position, as well as 2,4′-bithiazole 5a, have been synthesized using an acyclic cross-metathesis of the corresponding depsipeptide structures assembled by N-C6(O) or C15(O)-N lactam formation. Similar to the parent system 4a, the series of largazole depsipeptides 4b-d, but not 2,4′-bithiazole 5a, showed a marked inhibition of recombinant HDAC1 and selectivity over HDAC4, as well as strong pro-apoptotic effects on the NB4 leukemia cell line, but they failed to induce differentiation to mature granulocytes. Functional assays of the analogues correlated with the in vitro activities, as shown by increased H3 and α-tubulin acetylation levels and p21WAF1/CIP1 up-regulation in NB4 cells. The activity of the natural product HDACi largazole 4a is not significantly altered by the presence of groups of different size (H, Et, Ph) at C7 on the dihydrothiazole ring.
Non-covalent thrombin inhibitors featuring P3-heterocycles with P1-monocyclic arginine surrogates
Reiner, John E.,Siev, Daniel V.,Araldi, Gian-Luca,Cui, Jingrong Jean,Ho, Jonathan Z.,Reddy, Komandla Malla,Mamedova, Lala,Vu, Phong H.,Lee, Kuen-Shan S.,Minami, Nathaniel K.,Gibson, Tony S.,Anderson, Susanne M.,Bradbury, Annette E.,Nolan, Thomas G.,Semple, J. Edward
, p. 1203 - 1208 (2007/10/03)
Investigations on P2-P3-heterocyclic dipeptide surrogates directed towards identification of an orally bioavailable thrombin inhibitor led us to pursue novel classes of achiral, non-covalent P1-arginine derivatives. The design, synthesis, and biological activity of inhibitors NC1-NC30 that feature three classes of monocyclic P1-arginine surrogates will be disclosed: (1) (hetero)aromatic amidines, amines and hydroxyamidines, (2) 2-aminopyrazines, and (3) 2-aminopyrimidines and 2-aminotetrahydropyrimidines.
