[EN] NOVEL CYCLIC BORONATE INHIBITORS OF HCV REPLICATION<br/>[FR] NOUVEAUX INHIBITEURS DE BORONATE CYCLIQUES DE RÉPLICATION DU VIRUS DE L'HÉPATITE C
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2009046098A1
公开(公告)日:2009-04-09
Compounds of formula (I) or a salt thereof are provided; wherein R1, R2, R3, R4, R6, R8, R20, R30, Y, Z and n are as defined in the description. Uses of the compounds as medicaments, and in the manufacture of medicaments for treating viral infection, especially HCV infection are also disclosed. The invention further comprises processes to make these compounds and pharmaceutical formulations thereof.
The stereochemical structure of (+)-2-hydroxypinocamphone (II), which was obtained from (−)-α-pinene (I) by the permanganate oxidation, was examined by a combination of physicochemical methods. It was thus found that the C-2 methyl group is trans with respect to the C-6 bridge and that the preferred conformation is V having an axial hydroxyl group. In addition, the preferred conformation of cis-α-pinene
(-)-α-蒎烯 (I) 通过高锰酸盐氧化获得 (+)-2-羟基松香烯 (II) 的立体化学结构,通过物理化学方法的组合进行了检查。因此发现C-2甲基相对于C-6桥是反式的并且优选的构象是具有轴向羟基的V。此外,通过氢化铝锂还原由II产生的顺式-α-蒎烯二醇(IX)和反式-α-蒎烯二醇(X)的优选构象分别是IXa和Xa。
The Absolute Configuration of Pinocarvone Oxide
作者:Jun Katsuhara
DOI:10.1246/bcsj.41.2700
日期:1968.11
(−)-pinocarvone oxide derived from (+)-pinocarvone into (−)-(1R:2S:3R:5R)-cis-2-hydroxypinocampheol and the conversion of (+)-pinocarvone oxide in (+)-(1R:2R:3R:5R)-trans-2-hydroxyneoisopinocampheol and (−)-(1R:2R:3R:5R)-cis-2-hydroxyisopinocampheol are described. With the knowledge of the absoluteconfigurations of these glycols, it was concluded that (−)-pinocarvone oxide and (+)-pinocarvone oxide have the
[EN] DIHYDROXYLATION OF OLEFINS USING OSMATE (VI) SALTS<br/>[FR] DIHYDROXYLATION D'OLÉFINES À L'AIDE DE SELS D'OSMATE (VI)
申请人:INT FLAVORS & FRAGRANCES INC
公开号:WO2021091957A1
公开(公告)日:2021-05-14
A highly efficient synthesis of cis-diol compounds through cis-dihydroxylation of olefins using osmate (VI) salt as catalysts is disclosed, which has found important application in efficient large-scale preparation of, among others, α,α-cedranediol from α-cedrene.
Synthesis, in Vitro and in Vivo Biological Evaluation, and Comprehensive Understanding of Structure−Activity Relationships of Dipeptidyl Boronic Acid Proteasome Inhibitors Constructed from β-Amino Acids
An extensive structure-activity relationship (SAR) study of 72 dipeptidyl boronic acid proteasome inhibitors constructed from beta-amino acids is reported. SAR analysis revealed that bicyclic groups at the RI position, 3-F substituents at the R-2 position, and bulky aliphatic groups at the R-3 position were favorable to the activities. Enzymatic screening results showed that compound 78, comprising all of these features, was the most active inhibitor against the 20S human proteasome at less than a 2 nM level, as active as the marketed drug bortezomib. Cellular assays confirmed that compound 78 was the most potent against two hematologic and some solid tumor cells with IC50 values less than 1 mu M. Pharmacokinetic profiles suggested that 78 showed higher plasma exposure and a longer half-life than bortezomib.