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排序方式: 共有150条查询结果,搜索用时 15 毫秒
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Estefanía del Horno Dr. Jesús Jover Dr. Miguel Mena Dr. Adrián Pérez-Redondo Dr. Carlos Yélamos 《Chemistry (Weinheim an der Bergstrasse, Germany)》2019,25(29):7096-7100
Titanium(III) complexes containing unprecedented (NH2BH2NHBH3)2− and {N(BH3)3}3− ligands have been isolated, and their structures elucidated by a combination of experimental and theoretical methods. The treatment of the trimethyl derivative [TiCp*Me3] (Cp*=η5-C5Me5) with NH3BH3 (3 equiv) at room temperature gives the paramagnetic dinuclear complex [{TiCp*(NH2BH3)}2(μ-NH2BH2NHBH3)], which at 80 °C leads to the trinuclear hydride derivative [{TiCp*(μ-H)}3{μ3-N(BH3)3}]. The bonding modes of the anionic BN fragments in those complexes, as well as the dimethylaminoborane group trapped on the analogous trinuclear [{TiCp*(μ-H)}3(μ3-H)(μ3-NMe2BH2)], have been studied by X-ray crystallography and density functional theory (DFT) calculations. 相似文献
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Dr. Teresa Mena‐Barragán Aya Narita Dino Matias Dr. Gustavo Tiscornia Dr. Eiji Nanba Dr. Kousaku Ohno Dr. Yoshiyuki Suzuki Dr. Katsumi Higaki Prof. José Manuel Garcia Fernández Prof. Carmen Ortiz Mellet 《Angewandte Chemie (International ed. in English)》2015,54(40):11696-11700
A general approach is reported for the design of small‐molecule competitive inhibitors of lysosomal glycosidases programmed to 1) promote correct folding of mutant enzymes at the endoplasmic reticulum, 2) facilitate trafficking, and 3) undergo dissociation and self‐inactivation at the lysosome. The strategy is based on the incorporation of an orthoester segment into iminosugar conjugates to switch the nature of the aglycone moiety from hydrophobic to hydrophilic in the pH 7 to pH 5 window, which has a dramatic effect on the enzyme binding affinity. As a proof of concept, new highly pH‐responsive glycomimetics targeting human glucocerebrosidase or α‐galactosidase with strong potential as pharmacological chaperones for Gaucher or Fabry disease, respectively, were developed. 相似文献
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Antonio?LijoiEmail author Ramsés?H.?Mena Igor?Prünster 《Statistical Inference for Stochastic Processes》2005,8(3):283-309
This paper considers a generalization of the Dirichlet process which is obtained by suitably normalizing superposed independent
gamma processes having increasing integer-valued scale parameter. A comprehensive treatment of this random probability measure
is provided. We prove results concerning its finite-dimensional distributions, moments, predictive distributions and the distribution
of its mean. Most expressions are given in terms of multiple hypergeometric functions, thus highlighting the interplay between
Bayesian Nonparametrics and special functions. Finally, a suitable simulation algorithm is applied in order to compute quantities
of statistical interest. 相似文献