DUAL SITE CATALYST FOR MILD, SELECTIVE NITRILE REDUCTION
申请人:University of Southern California
公开号:US20160145193A1
公开(公告)日:2016-05-26
A ruthenium bis(pyrazolyl)borate scaffold that enables cooperative reduction reactivity in which boron and ruthenium centers work in concert to effect selective nitrile reduction is provided. The pre-catalyst compound [κ
3
-(1-pz)
2
HB(N═CHCH
3
)]Ru(cymene)
−
TfO
−
(pz=pyrazolyl) was synthesized using readily-available materials through a straightforward route, thus making it an appealing catalyst for a number of reactions.
The present invention provides a compound of formula I processes for preparing such compounds, their the utility in treating clinical conditions including lipid disorders (dyslipidemias) whether or not associated with insulin resistance, methods for their therapeutic use and pharmaceutical compositions containing them.
The present invention provides the S enantiomer of a compound of formula (I) wherein R1 represents chloro, trifluoromethyl or trifluoromethoxy, R2 represents H or fluoro and R3 represents a C2-4alkyl group as well as pharmaceutically acceptable salts, solvates and prodrugs thereof, to processes for preparing such compounds, to their the utility in treating clinical conditions including lipid disorders (dyslipidemias) whether or not associated with insulin resistance, to methods for their therapeutic use and to pharmaceutical compositions containing them.
The present invention relates novel flavin derivatives and other flavin derivatives, their use and compositions for use as riboswitch ligands and/or anti-infectives. The invention also provides method of making novel flavin derivatives.
Structure, reactivity and catalytic properties of manganese-hydride amidate complexes
作者:Yujie Wang、Shihan Liu、Haobo Yang、Hengxu Li、Yu Lan、Qiang Liu
DOI:10.1038/s41557-022-01036-6
日期:2022.11
amidate intermediate has not yet been isolated. Here we present the synthesis, isolation and reactivity of a metal-hydride amidate complex (HMn–NLi). Kinetic studies show that the rate of hydride transfer from HMn–NLi to a ketone is 24-fold higher than that of the corresponding amino metal-hydride complex (HMn–NH). Moreover, the hydrogenation of N-alkyl-substituted aldimines was realized using HMn–NLi