Provided herein are ruthenium complexes of Formula I, and processes of preparation thereof. Also provided are methods of their use as a metathesis catalyst.
本文提供了一种一式的钌配合物,以及其制备方法。还提供了它们作为交换催化剂的使用方法。
MACROCYCLIC SERINE PROTEASE INHIBITORS
申请人:Parsy Christophe Claude
公开号:US20090202480A1
公开(公告)日:2009-08-13
Provided herein are macrocyclic serine protease inhibitor compounds, for example, of Formula I, pharmaceutical compositions comprising the compounds, and processes of preparation thereof. Also provided are methods of their use for the treatment of an HCV infection in a host in need thereof.
With DBU-activated N-bromophthalimide as potential N-sources to achieve P–N cross-coupling of P(O)–H compounds
作者:Yueju Li、Fushun Liang
DOI:10.1016/j.tetlet.2016.05.076
日期:2016.6
has been developed with the DBU activation strategy. The nitrogen source may arise from internal N-bromophthalimide itself (a self-immolating reagent) or external phthalimide derivatives (with NBS-DBU activation system). The reaction features broad phosphorous compounds scope, including H-phosphinates, H-phosphonates, and H-phosphine oxides, and short reaction time (less than 10 min). This method provides
[EN] NEW PHOSPHORUS CONTAINING HETEROCYCLIC COMPOUNDS, SUGAR ANALOGUES, AND COMPOSITIONS HAVING ANTI-CANCER ACTIVITY CONTAINING THE SAME<br/>[FR] NOUVEAUX COMPOSÉS HÉTÉROCYCLIQUES CONTENANT DU PHOSPHORE, ANALOGUES DE SUCRES, ET COMPOSITIONS AYANT UNE ACTIVITÉ ANTICANCÉREUSE LES CONTENANT
申请人:CENTRE NAT RECH SCIENT
公开号:WO2009004096A1
公开(公告)日:2009-01-08
The invention provides new anticancer compounds of formula (1) such as defined in the present description. The invention also provides pharmaceutical compositions to be used in human or veterinary medicine, comprising at least one compound of formula (1). The present invention further relates to a compound of formula (1) such as defined in the present description, for use as a drug. The invention further relates to the use of a compound of formula (1) for manufacturing a human or animal anticancer pharmaceutical composition.
Asymmetric Synthesis of Stereogenic Phosphorus P(V) Centers Using Chiral Nucleophilic Catalysis
作者:Ahmed Numan、Matthew Brichacek
DOI:10.3390/molecules26123661
日期:——
transition metal catalysis and as nucleotide therapeutics. The catalytic, stereocontrolled synthesis of phosphorus-stereogenic centers is challenging and traditionally depends on a resolution or use of stochiometric auxiliaries. Herein, enantioenriched phosphorus centers have been synthesized using chiral nucleophiliccatalysis. Racemic H-phosphinate species were coupled with nucleophilic alcohols under
有机磷酸酯已广泛应用于农业化学、有机合成试剂和生物化学。磷酸盐模拟物具有四个独特的取代基,从而具有手性中心,可用于过渡金属催化和核苷酸治疗。磷立体中心的催化立体控制合成具有挑战性,传统上取决于化学计量助剂的分辨率或使用。在此,使用手性亲核催化合成了对映体富集的磷中心。外消旋H-次膦酸酯物质与亲核醇在卤化条件下偶联。在确定合适的手性催化剂并优化溶剂、碱和温度后,以可接受的产率(33-95%)合成了手性膦酸酯产品,并观察到适度的对映选择性(高达 62% ee )。亲核催化具有生产对映体富集的磷酸盐模拟物的巨大潜力,可用作前药或化学生物学探针。