Diastereomeric Spirooxindoles as Highly Potent and Efficacious MDM2 Inhibitors
作者:Yujun Zhao、Liu Liu、Wei Sun、Jianfeng Lu、Donna McEachern、Xiaoqin, Li、Shanghai Yu、Denzil Bernard、Philippe Ochsenbein、Vincent Ferey、Jean-Christophe Carry、Jeffrey R. Deschamps、Duxin Sun、Shaomeng Wang
DOI:10.1021/ja3125417
日期:2013.5.15
which affords four diastereomers from a single compound. Our biochemical binding data showed that the stereochemistry in this class of compounds has a major effect on their binding affinities to MDM2, with >100-fold differencebetween the most potent and the least potent stereoisomers. Our study has led to the identification of a set of highly potent MDM2 inhibitors with a stereochemistry that is different
Hypusine, a new basic amino acid occurring in the homogenate of bovine brain tissue, was synthesized to determine the absolute structure. Nα-Benzyloxycarbonyl-l-lysine benzyl ester was coupled with (S)- or (R)-4-benzyloxycarbonylamino-1-bromo-2-butanol derived from l- or d-malic acid, respectively. The products were deprotected by catalytic hydrogenation. One of the synthetic compounds, i.e., (2S,9R)-2,11-diamino-9-hydroxy-7-azaundecanoic acid, was completely identical with natural hypusine in all respects.
(R)- and (S)-N-(Benzyloxycarbonyl)-3,4-epoxybutylamine. New 4-amino-2-hydroxybutyl synthons for the synthesis of hypusine reagents and (R)-6- and (S)-7-hydroxyspermidine
作者:Raymond J. Bergeron、Jörg Bussenius、Ralf Müller、Bruce H. McCosar、James S. McManis
DOI:10.1016/s0957-4166(99)00474-7
日期:1999.11
The synthesis and application of the chiral reagents (R)- and (S)-N-(benzyloxycarbonyl)-3,4-epoxybutylamine is described for the first time. These 4-amino-2-hydroxybutyl synthons are successfully employed in the assembly of two hydroxylated triamines, (R)-6- and (S)-7-hydroxyspermidine, and a previously described hypusine reagent, (2S,9R)-11-[(benzyloxycarbonyl)amino]-7-(benzyloxycarbonyl)-2-[(9-f
Synthesis of Nucleosides and Oligonucleotides Containing Adducts of Acrolein and Vinyl Chloride
作者:Lubomir V. Nechev、Constance M. Harris、Thomas M. Harris
DOI:10.1021/tx990167+
日期:2000.5.1
oligonucleotides containing these adducts. Reaction of O(6)-[(trimethylsilyl)ethyl]-2-fluoro-2'-deoxyinosine with the appropriate aminodiol followed by oxidative cleavage of the diol with NaIO(4) gave the adducts in excellent yields. Reaction of oligonucleotides containing the halonucleoside with the aminodiols followed by NaIO(4) efficiently created the nucleosides in the oligonucleotides. Deoxyadenosine
The invention is concerned with novel heterocyclyl compounds of formula (I):
wherein A, X, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, m, n and p are as defined in the description and in the claims, as well as physiologically acceptable salts thereof. These compounds are antagonists of CCR2 receptor, CCR5 receptor and/or CCR3 receptor and may be used as medicaments.