[EN] TETRAHYDROPYRIDOPYRIMIDINES AND TETRAHYDROPYRIDOPYRIDINES AS INHIBITORS OF HBSAG (HBV SURFACE ANTIGEN) AND HBV DNA PRODUCTION FOR THE TREATMENT OF HEPATITIS B VIRUS INFECTIONS<br/>[FR] TÉTRAHYDROPYRIDOPYRIMIDINES ET TÉTRAHYDROPYRIDOPYRIDINES COMME INHIBITEURS D'AG HBS (ANTIGÈNE DE SURFACE DU VIRUS DE L'HÉPATITE B) ET PRODUCTION D'ADN DE VHB POUR LE TRAITEMENT D'INFECTIONS PAR LE VIRUS DE L'HÉPATITE B
申请人:HOFFMANN LA ROCHE
公开号:WO2016177655A1
公开(公告)日:2016-11-10
The present invention provides tetrahydropyridopyrimidines and tetrahydropyridopyridines having the general formula (I) wherein R1, R2, U, W, X, Y and Z are as described herein, as inhibitors of HBsAg (HBV surface antigen) and HBV DNA production for the treatment and prophylaxis of hepatitis B virus infections.
SELECTIVE HYDRODEOXYGENATION OF AROMATIC COMPOUNDS
申请人:The Board of Trustees of The University of Alabama
公开号:US20210198171A1
公开(公告)日:2021-07-01
Disclosed are methods of selective hydrodeoxygenation of aromatic compounds by using catalyst systems comprising N-heterocyclic carbene (NHC) and 4-pyridinol-derived pincer ligands and metal complexes containing these ligands.
Determining the Catalyst Properties That Lead to High Activity and Selectivity for Catalytic Hydrodeoxygenation with Ruthenium Pincer Complexes
作者:Wenzhi Yao、Sanjit Das、Nicholas A. DeLucia、Fengrui Qu、Chance M. Boudreaux、Aaron K. Vannucci、Elizabeth T. Papish
DOI:10.1021/acs.organomet.9b00816
日期:2020.3.9
Ten ruthenium pincer complexes were evaluated as catalysts for the hydrodeoxygenation (HDO) reaction on a lignin monomer surrogate, vanillyl alcohol. Four of these complexes are reported herein with the synthesis and full characterization data for all and single-crystal X-ray diffraction data for three complexes bearing OH/O–, NMe2, and Me substituents on the pincer. A systematic study of these CNC
评价了十种钌钳配合物作为木质素单体替代物香草醇上的加氢脱氧(HDO)反应的催化剂。这些复合物中的四个与所有合成和全面表征数据和单晶X射线衍射数据本文报道的三种络合物轴承OH / O -,NME 2上钳和Me的取代基。对这些CNC钳形配合物的系统研究表明,吡啶环上的π供体取代基在提高所需脱氧产物的收率中起关键作用。而OMe,OH和NMe 2当在钳子上的中央吡啶环上的π-供体取代基均有效时,以OH取代基和添加碳酸钠作为碱,观察到最高的产物转化率和最佳的选择性。碱用于使OH基团去质子化并形成1 O- ,在光谱上观察到。此外,使用其他催化剂的努力表明,钌中心需要自由或不稳定的位点,并且电子丰富且不庞大的CNC钳子是最佳的。在低催化剂负载量(0.01摩尔%)下,OH取代的催化剂为1 OH在碱的存在下用作均相催化剂,并且能够以高达10000的营业额实现香草醇定量和选择性地转化为所需的HDO产物甲酚。掌